Airworthiness Directives; The Boeing Company Airplanes, 67038-67043 [2018-28075]
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Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Rules and Regulations
reset in response to the ECAM alert, which
could lead to exposure of critical locations
and the surrounding structure to heat stress,
possibly resulting in reduced structural
integrity of the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Requirements
Except as specified in paragraph (h) of this
AD: Comply with all required actions and
compliance times specified in, and in
accordance with, EASA AD 2018–0246.
(h) Exceptions to EASA AD 2018–0246
(1) For purposes of determining
compliance with the requirements of this AD:
Where EASA AD 2018–0246 refers to its
effective date, this AD requires using the
effective date of this AD.
(2) The ‘‘Remarks’’ section of EASA AD
2018–0246 does not apply to this AD.
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(i) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Section, Transport Standards Branch, FAA,
has the authority to approve AMOCs for this
AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR
39.19, send your request to your principal
inspector or local Flight Standards District
Office, as appropriate. If sending information
directly to the International Section, send it
to the attention of the person identified in
paragraph (j) of this AD. Information may be
emailed to: 9-ANM-116-AMOC-REQUESTS@
faa.gov. Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, International Section,
Transport Standards Branch, FAA; or EASA;
or Airbus SAS’s EASA Design Organization
Approval (DOA). If approved by the DOA,
the approval must include the DOAauthorized signature.
(3) Required for Compliance (RC): For any
service information referenced in EASA AD
2018–0246 that contain RC procedures and
tests: Except as required by paragraph (i)(2)
of this AD, RC procedures and tests must be
done to comply with this AD; any procedures
or tests that are not identified as RC are
recommended. Those procedures and tests
that are not identified as RC may be deviated
from using accepted methods in accordance
with the operator’s maintenance or
inspection program without obtaining
approval of an AMOC, provided the
procedures and tests identified as RC can be
done and the airplane can be put back in an
airworthy condition. Any substitutions or
changes to procedures or tests identified as
RC require approval of an AMOC.
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(j) Related Information
For more information about this AD,
contact Kathleen Arrigotti, Aerospace
Engineer, International Section, Transport
Standards Branch, FAA, 2200 South 216th
St., Des Moines, WA 98198; telephone and
fax 206–231–3218.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(i) EASA AD 2018–0246, dated November
13, 2018.
(ii) [Reserved]
(3) For EASA AD 2018–0246, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 89990
6017; email ADs@easa.europa.eu; Internet
www.easa.europa.eu. You may find this
EASA AD on the EASA website at https://
ad.easa.europa.eu.
(4) You may view this EASA AD at the
FAA, Transport Standards Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
EASA AD 2018–0246 may be found in the
AD docket on the internet at https://
www.regulations.gov by searching for and
locating Docket No. FAA–2018–1062.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Des Moines, Washington, on
December 14, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2018–28067 Filed 12–27–18; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–4219; Product
Identifier 2015–NM–169–AD; Amendment
39–19535; AD 2018–26–05]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
SUMMARY:
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The Boeing Company Model 777
airplanes. This AD was prompted by
reports of latently failed engine fuel
shutoff spar valves discovered during
fuel filter replacement. This AD requires
inspecting to determine the part
numbers (P/Ns) of the motor-operated
valve (MOV) actuators at the engine fuel
shutoff spar valve positions, installing
MOV actuators having a certain
acceptable part number or software if
necessary, and revising the maintenance
or inspection program to add a new
airworthiness limitation. We are issuing
this AD to address the unsafe condition
on these products.
This AD is effective February 1,
2019.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of February 1, 2019.
DATES:
For service information
identified in this final rule, contact
Boeing Commercial Airplanes,
Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC
110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet
https://www.myboeingfleet.com. You
may view this service information at the
FAA, Transport Standards Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
It is also available on the internet at
https://www.regulations.gov by searching
for and locating Docket No. FAA–2016–
4219.
ADDRESSES:
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
4219; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
The AD docket contains this final rule,
the regulatory evaluation, any
comments received, and other
information. The address for Docket
Operations (phone: 800–647–5527) is
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Kevin Nguyen, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des
Moines, WA 98198; phone and fax: 206–
231–3555; email: Kevin.Nguyen@
faa.gov.
SUPPLEMENTARY INFORMATION:
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Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to certain The Boeing Company
Model 777 airplanes. The NPRM
published in the Federal Register on
March 8, 2016 (81 FR 12039). The
NPRM was prompted by reports of
latently failed engine fuel shutoff spar
valves discovered during fuel filter
replacement. The NPRM proposed to
require replacing certain MOV actuators
with MOV actuators having a certain
acceptable part number on both airline
information management system (AIMS)
Version 1- and 2-equipped airplanes, or
installing a newer software version on
AIMS Version 2-equipped airplanes.
We issued a SNPRM to amend 14 CFR
part 39 by adding an AD that would
apply to certain The Boeing Company
Model 777 airplanes. The SNPRM
published in the Federal Register on
August 21, 2017 (82 FR 39545). We
issued the SNPRM to add a part number
inspection, add an AWL, and specify
new AIMS software.
We are issuing this AD to address
latent failure of the fuel shutoff spar
valve to the engine, which could result
in the inability to terminate fuel flow to
the engine and, in the case of an engine
fire, could lead to wing failure.
Comments
We gave the public the opportunity to
participate in developing this final rule.
The following presents the comments
received on the SNPRM and the FAA’s
response to each comment.
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Request To Omit Inspection
Requirement
American Airlines (American)
requested that we revise paragraph (g) of
the proposed AD (in the SNPRM) to
omit the requirement to inspect for the
MOV actuator part numbers, and to
reflect only the essential compliance
requirements as stated in paragraphs
(g)(1) and (g)(2) of the proposed AD (in
the SNPRM) (the conditional
requirements that depend on the part
number found). The commenter stated
that the inspection is not necessary to
accomplish any of the compliance
options and adds no value to the
process.
We disagree with the request. The
MOV actuator is a rotable part. Several
previously approved and existing
interchangeable MOV actuator part
numbers may be installed at the engine
fuel shutoff spar valve positions. The
MOV actuator installed at the engine
fuel shutoff spar valve positions at the
time of airplane manufacture may have
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been later replaced by an MOV actuator
of a different part number. Because an
unsafe condition exists with certain part
numbers, we have determined that it is
necessary to control the method by
which an operator may determine what
part number is installed. In the absence
of such a control, an operator might
simply assume that the part number
delivered with the airplane is still in
place. The most positive method to
verify the installed part number is to
inspect the part. Alternatively, as stated
in paragraph (g) of this AD, the FAA
will accept verification through a
maintenance records check if the
records positively show the installed
part number. We have not changed the
AD regarding this issue.
Request To Incorporate AWL After
MOV Actuator Installation
American requested that we revise
paragraph (g)(1) of the proposed AD (in
the SNPRM) to include incorporation of
new airworthiness limitation (AWL) 28–
AWL–MOVA, which is specified in
paragraph (h) of the proposed AD (in the
SNPRM).
We disagree with the request. The
commenter did not provide rationale for
the requested change, but we infer their
request was to have all required actions
within paragraph (g) of this AD. We
have determined that it is better to
structure the AD by separating required
actions that are discretely different into
separate paragraphs. As such, all
required actions associated with
inspecting and replacing the affected
MOV actuators are in paragraph (g) of
this AD and all required actions
associated with the AWL revisions are
in paragraph (h) of this AD. Therefore,
we find it unnecessary to change this
AD regarding this issue.
Request To Clarify Airplanes Subject to
Inspection
Cathay Pacific noted a discrepancy in
Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015.
Some airplanes that subsequently
installed AIMS–2 Block Point (BP)
Version 17A software may no longer
match the conditions for the service
bulletin groups, and do not fit the
criteria of either paragraph (g)(1) or
(g)(2) of the proposed AD (in the
SNPRM). Cathay Pacific therefore
requested that we revise paragraph (g) of
the proposed AD (in the SNPRM) to
clarify that the inspection is required
only on airplanes without AIMS–2 BP
Version 17A software. The commenter
reported that Boeing confirmed that the
service bulletin will be revised to
address this discrepancy.
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We agree with the request. We had
intended to exclude the inspection
requirement for airplanes with AIMS–2
BP Version 17A software installed. We
have therefore revised paragraph (g) of
this AD to also state that no further
action is required by paragraph (g) of
this AD if AIMS–2 BP Version 17 or
later software is installed, which also
include AIMS–2 BP Versions 17.1 and
17A.
Request To Allow Alternative Service
Information
Delta Air Lines (Delta) requested that
we revise paragraph (g)(2)(ii) of the
proposed AD (in the SNPRM) to allow
Boeing Service Bulletin 777–31–0275,
dated June 8, 2017, as another method
to use to install AIMS–2 BP Version 17A
software or later-approved version.
Delta explained that this service bulletin
describes procedures for modifying the
hardware and software related to
converting from AIMS–1 to AIMS–2
software, including AIMS–2 BP Version
17A software. Delta added that Boeing
Service Bulletin 777–31–0275 specifies
installation of the same software as that
specified in Boeing Service Bulletin
777–31–0218, and provides an
equivalent level of safety to that of the
SNPRM.
We partially agree with the request.
We agree that installation of AIMS–2 BP
Version 17A and later-approved
software is an acceptable alternative to
replacing the MOV actuator, because
that software allows failure of any of the
previously approved MOV actuator part
numbers to be detected and annunciated
by the airplane display system.
However, we find it unnecessary to
revise paragraph (g)(2)(ii) of this AD to
add another acceptable method of
compliance (Boeing Service Bulletin
777–31–0275) for the installation of
AIMS–2 BP Version 17A software
during conversion of an airplane from
AIMS–1 to AIMS–2 software. Instead,
we have revised paragraph (g) of this AD
to clarify that no further action is
required by paragraph (g) of this AD if
AIMS–2 BP Version 17 or later software
is installed.
Request To Provide Credit for AIMS–2
BP Version 17A Software
American and Delta requested that we
revise paragraph (j) of the proposed AD
(in the SNPRM) to provide credit for
installation of AIMS–2 BP Version 17A
software. Delta noted a conflict between
the ‘‘Actions Since the NPRM was
Issued’’ section of the SNPRM (which
specified the proposed AD would
require installing AIMS–2 BP Version
17A software) and paragraph (j) of the
proposed AD (in the SNPRM) (which
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Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Rules and Regulations
specified credit for paragraph (g)(2)(ii)
when AIMS–2 BP Version 17 or 17.1
software was installed before the
effective date of this AD).
We agree to clarify that we have
achieved similar results to the
commenters request since we have
clarified the multiple references to
AIMS–2 BP Version 17 software in this
AD, and that we have revised this AD
to exclude airplanes with AIMS–2 BP
Version 17 or later software installed
from the requirements of paragraph (g)
of this AD. Therefore, we have not
changed paragraph (j) and have
determined that no further change to the
AD is necessary regarding this issue.
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Request To Remove AWL Requirement
Boeing requested that we revise
paragraph (h) of the proposed AD (in the
SNPRM) to remove the requirement to
incorporate the new AWL. Boeing noted
that paragraphs (g)(1) and (g)(2)(i) of the
proposed AD (in the SNPRM) would
require inspection of all affected
airplanes and replacement of all MOV
actuators at the engine fuel shutoff spar
valve positions with MOV actuators
having P/N MA30A1017 (Boeing P/N
S343T003–76). Boeing asserted that
those proposed requirements would
therefore be redundant with the
proposed requirement of paragraph (h)
of the proposed AD (in the SNPRM),
since the AWL prohibits installation of
MA20A2027 (Boeing P/N S343T003–56)
and P/N MA30A1001 (Boeing P/N
S343T003–66) MOV actuators at the
engine fuel shutoff spar valve positions.
We disagree with the request. As
previously explained in the SNPRM, the
new AWL is necessary to prevent an
airplane from being modified to a preAD condition. Although the AWL
would prohibit installation of the MOV
actuators at the engine fuel shutoff spar
valve positions, these two MOV actuator
part numbers may still be installed at
other locations (as their failure in the
other locations is of economic impact
only), and could be inadvertently reinstalled at the engine fuel shutoff spar
valve positions. To address this
concern, we added paragraph (h) to the
proposed AD (in the SNPRM) to specify
the incorporation of the new AWL. We
have not changed this AD regarding this
issue.
Request To Add Instructions for
Maintenance Program Revision
Delta recommended that we add
details on how to conduct the
maintenance or inspection program,
such as inspection methods and
repetitive intervals, in order to clarify
the proposed requirements of paragraph
(h) of the proposed AD (in the SNPRM).
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That proposed requirement would
require revising the maintenance
program to incorporate a new
airworthiness limitation prohibiting the
installation of certain MOV actuators,
and to maintain this limitation in the
operator’s fleet maintenance program.
Delta inferred that the purpose of the
proposed requirement is to ensure that
P/Ns MA30A1001 and MA20A2027 are
not installed in the two engine fuel
shutoff spar valve positions once the
requirements of paragraph (g) of the AD
have been complied with.
Delta stated that the requirement to
incorporate a statement indicating that a
part is prohibited is not a maintenance
program. Delta stated that an aircraft
maintenance program is not the
appropriate way to do this, adding that
a ‘‘parts prohibition’’ statement
(including locations—left and right
engine fuel shutoff spar valve positions,
in this case) would be more appropriate
to ensure that a specific part number is
not installed in the future. Delta stated
that similar parts prohibition statements
are included in AD 2016–04–20,
Amendment 39–18414 (81 FR 10460,
March 1, 2016), and AD 2013–05–03,
Amendment 39–17375 (78 FR 17290,
March 21, 2013), such that operators
could then add notes to the airplane
illustrated parts catalog (IPC), aircraft
maintenance manual (AMM), etc., to
ensure that those parts are not installed
at the specified location in the future.
We disagree with the request. An
AWL containing a parts prohibition
statement for a maintenance or
inspection program has been required
by other ADs, and is appropriate in this
case. Paragraph (h) of this AD requires
only the incorporation of the AWL item
into the operator’s fleet, not specific
ways to accomplish the AWL task or
comply with the restriction. Each
operator is responsible for
accomplishing the AWL task and
maintaining the AWL restriction.
Although a parts prohibition statement
could be included in the AD, we chose
to mandate this requirement via
incorporation of an AWL to be
consistent with the requirements of AD
2015–19–01, Amendment 39–18264 (80
FR 55521, September 16, 2015) (‘‘AD
2015–19–01’’). AD 2015–19–01 required
revising the existing maintenance or
inspection program to include a new
AWL that required certain actions for
The Boeing Company Model 777
airplanes with MOV actuators having P/
N MA20A2027 or P/N MA30A1001
installed at the engine fuel shutoff spar
valve positions. The prohibited MOV
actuator part numbers at the engine fuel
shutoff spar valve positions are still
physically interchangeable with the
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acceptable part numbers and may be
used in other valve locations, and they
are expected to remain in operators’
parts stores for a long period of time. We
have not changed this AD regarding this
issue.
Request To Revise Compliance Time to
Incorporate AWL
Delta requested that we clarify the
compliance time for incorporating the
new AWL into the maintenance
program, as specified in paragraph (h) of
the proposed AD (in the SNPRM): 24
months after the effective date of the
AD, and after accomplishing the actions
required by (g). Delta recommended that
the compliance time be changed to
within 24 months after the effective date
of the AD or after accomplishment of
the actions required by paragraph (g)(1)
or (g)(2)(i) of the AD, whichever occurs
first. Delta also asked that we remove
the condition ‘‘after accomplishing the
actions required by paragraph (g) of this
AD on all airplanes in an operator’s
fleet.’’ Delta stated that the current
wording is unclear and appears to
indicate operators must wait until the
actions of paragraph (g) of the AD are
complete on their Model 777 fleets
before they can insert 28–AWL–MOVA
into the maintenance program. Delta
believes the FAA’s intent is to put in
place a part prohibition for MOV
actuators at the engine fuel shutoff spar
valve positions on applicable airplanes
without AIMS–2 BP Version 17 software
or later version, and that when the
requirements of paragraph (g)(2)(ii) of
the AD are completed, this AWL would
no longer be applicable.
We agree with the request. We have
revised the compliance time in
paragraph (h) of this AD to ‘‘within 24
months after the effective date of the
AD.’’ This allows operators to
incorporate the new AWL into their
maintenance program at any time
within that 24-month period, without
waiting until all required actions on all
affected airplanes in the fleet are
completed. This would also allow
continued operation of an airplane if
another airplane having the pre-AD
configuration is introduced into an
operator’s fleet before the end of the
compliance time, even if this were to
occur after the accomplishment of the
required actions on all other airplanes
in the fleet.
Request To Exclude Model 777F Series
Airplanes
FedEx requested that we exclude
Model 777F series airplanes from the
proposed requirements of paragraphs
(g), (h), and (i) of the proposed AD (in
the SNPRM). The service information,
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Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015,
specifies that no work is necessary for
airplanes in Group 7, which includes
Model 777F series airplanes.
We disagree with the request. Even
though the commenter is correct in that
Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015,
specifies that no work is necessary for
airplanes in Group 7, which includes
Model 777F series airplanes, the intent
of this AD is to ensure that all airplanes
identified in paragraph (c) of this AD,
which includes Model 777F series
airplanes and other Group 7 airplanes,
address the unsafe condition through
compliance with the requirements of the
AD. Compliance with the requirements
of paragraph (g) of this AD may be
accomplished by installing a certain
MOV actuator in accordance with
Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015,
or installing certain AIMS–2 BP Version
17 or later software in accordance with
Boeing Service Bulletin 777–31–0218,
dated September 8, 2016 (depending on
configuration).
We have clarified the options
available for some of the affected
airplanes, i.e., Group 7 airplanes with
AIMS–2 BP Version 16 or earlier
software. Specifically, if the actions
specified in paragraph (g)(2)(i) of this
AD are done, Figures 35 and 37 of
Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015,
can be used for compliance regarding
installation of the MOV actuator.
Operators may also install AIMS–2 BP
Version 17A software in accordance
with paragraph (g)(2)(ii) of this AD. It is
also necessary for operators of affected
Boeing Model 777F airplanes to
incorporate the AWL requirements
specified in paragraph (h) of this AD.
Additional Changes to AD
The effectivity of Boeing Service
Bulletin 777–28A0034, Revision 3,
dated September 25, 2015, incorrectly
categorizes airplanes in Group 4 as only
those with AIMS–1 software installed.
We have confirmed with Boeing that
Group 4 airplanes includes airplanes
with AIMS–1 software or AIMS–2 BP
Version 16 or earlier software; or AIMS–
2 BP Version 17 or later software. The
airplane variable number listing in the
service information does include the
AIMS–2 equipped airplanes. We have
therefore clarified for the purposes of
the requirements in paragraph (g)(2) of
this AD to state that Group 4, as
identified in Boeing Service Bulletin
777–28A0034, Revision 3, dated
September 25, 2015, includes airplanes
with AIMS–1 software or AIMS–2 BP
Version 16 or earlier software installed.
We have revised paragraph (i) in this
AD to clarify that the requirements of
AD 2015–19–01 may be terminated only
when the requirements of paragraph (g)
and (h) of this AD have been done on
‘‘all affected airplanes in an operator’s
fleet.’’
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this
67041
final rule with the changes described
previously and minor editorial changes.
We have determined that these minor
changes:
• Are consistent with the intent that
was proposed in the SNPRM for
addressing the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the SNPRM.
We also determined that these
changes will not increase the economic
burden on any operator or increase the
scope of this final rule.
Related Service Information Under 1
CFR Part 51
We reviewed Boeing Service Bulletin
777–28A0034, Revision 3, dated
September 25, 2015. This service
information describes procedures for,
among other things, inspection and
replacement of the MOV actuators at the
engine fuel shutoff spar valve positions.
We also reviewed Boeing Service
Bulletin 777–31–0218, dated September
8, 2016. This service information
describes procedures for installing the
AIMS–2 BP Version 17A software
upgrade.
This service information is reasonably
available because the interested parties
have access to it through their normal
course of business or by the means
identified in the ADDRESSES section.
Costs of Compliance
We estimate that this AD affects 154
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
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ESTIMATED COSTS
Cost per
product
Action
Labor cost
Inspection ....................................................
Replacement of two MOV actuators without fuel tank access.
Installation of AIMS–2 BP Version 17A
software.
1 work-hour × $85 per hour = $85 .............
5 work-hours × $85 per hour = $425 .........
$0
12,000
$85
12,425
7 work-hours × $85 per hour = $595 .........
0
595
We have determined that revising the
maintenance or inspection program
takes an average of 90 work-hours per
operator, although we recognize that
this number may vary from operator to
operator. In the past, we have estimated
that this action takes 1 work-hour per
airplane. Since operators incorporate
maintenance or inspection program
changes for their affected fleets, we have
determined that a per-operator estimate
is more accurate than a per-airplane
estimate. Therefore, we estimate the
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Parts cost
total cost per operator to be $7,650 (90
work-hours × $85 per work-hour).
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in Subtitle VII,
Part A, Subpart III, Section 44701:
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Cost on U.S.
operators
$13,090.
Up to $422,450.
Up to 71,400.
‘‘General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
This AD is issued in accordance with
authority delegated by the Executive
Director, Aircraft Certification Service,
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as authorized by FAA Order 8000.51C.
In accordance with that order, issuance
of ADs is normally a function of the
Compliance and Airworthiness
Division, but during this transition
period, the Executive Director has
delegated the authority to issue ADs
applicable to transport category
airplanes and associated appliances to
the Director of the System Oversight
Division.
Regulatory Findings
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation
in Alaska, and
(4) Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
amozie on DSK3GDR082PROD with RULES
■
VerDate Sep<11>2014
16:02 Dec 27, 2018
Jkt 247001
2018–26–05 The Boeing Company:
Amendment 39–19535; Docket No.
FAA–2016–4219; Product Identifier
2015–NM–169–AD.
(a) Effective Date
This AD is effective February 1, 2019.
(b) Affected ADs
This AD affects AD 2015–19–01,
Amendment 39–18264 (80 FR 55521,
September 16, 2015) (‘‘AD 2015–19–01’’).
(c) Applicability
This AD applies to The Boeing Company
Model 777–200, 777–200LR, 777–300, 777–
300ER, and 777F series airplanes, certificated
in any category, excluding line numbers 1165
and subsequent.
(d) Subject
Air Transport Association (ATA) of
America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by reports of
latently failed engine fuel shutoff spar valves
discovered during fuel filter replacement. We
are issuing this AD to address latent failure
of the fuel shutoff spar valve to the engine,
which could result in the inability to
terminate fuel flow to the engine and, in the
case of an engine fire, could lead to wing
failure.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Inspection and Replacement
Within 24 months after the effective date
of this AD: Do an inspection to determine the
part numbers (P/Ns) of the motor-operated
valve (MOV) actuators at the fuel shutoff spar
valve positions for the left and right engines,
in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777–
28A0034, Revision 3, dated September 25,
2015. A review of airplane maintenance
records is acceptable in lieu of this
inspection if the part numbers can be
conclusively determined from that review. If
it can be definitively determined, by visual
inspection or airplane maintenance records
review, that P/N MA30A1017 (Boeing P/N
S343T003–76) is installed, or that airplane
information management system (AIMS) 2
Block Point (BP) Version 17 or later software
is installed, no further action is required by
paragraph (g) of this AD.
(1) For any MOV actuator with a P/N other
than P/N MA30A1017 (Boeing P/N
S343T003–76) on an airplane having AIMS–
1 installed: Within 24 months after the
PO 00000
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effective date of this AD, install MOV
actuators having part number (P/N)
MA30A1017 at the engine fuel shutoff spar
positions, in accordance with the
Accomplishment Instructions of Boeing
Service Bulletin 777–28A0034, Revision 3,
dated September 25, 2015.
(2) For any MOV actuator with a P/N other
than P/N MA30A1017 (Boeing P/N
S343T003–76) on an airplane having AIMS–
2 BP Version 16 software or earlier version,
installed: Within 24 months after the
effective date of this AD, do the actions
specified in paragraph (g)(2)(i) or (g)(2)(ii) of
this AD. For purposes of this AD, airplanes
identified as Group 4 in Boeing Service
Bulletin 777–28A0034, Revision 3, dated
September 25, 2015, also include airplanes
with AIMS–2 BP Version 16 or earlier
software installed.
(i) Install MOV actuators having P/N
MA30A1017 at the engine fuel shutoff spar
valve positions, in accordance with the
Accomplishment Instructions of Boeing
Service Bulletin 777–28A0034, Revision 3,
dated September 25, 2015. For airplanes
identified as Group 7 in Boeing Service
Bulletin 777–28A0034, Revision 3, dated
September 25, 2015, with AIMS–2 BP
Version 16 or earlier software, the
instructions for installing P/N MA30A1017
(Boeing P/N S343T003–76) are in Figures 35
and 37 of Boeing Service Bulletin 777–
28A0034, Revision 3, dated September 25,
2015.
(ii) Install AIMS–2 BP Version 17A
software or later-approved version, in
accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777–
31–0218, dated September 8, 2016. Laterapproved versions of the software are only
those Boeing software versions that are
approved as a replacement for AIMS–2 BP
Version 17A software, and approved as part
of the type design by the FAA after issuance
of Boeing Service Bulletin 777–31–0218,
dated September 8, 2016.
(h) Revision of Maintenance or Inspection
Program
Within 24 months after the effective date
of this AD, revise the maintenance or
inspection program, as applicable, to add
Airworthiness Limitation (AWL) 28–AWL–
MOVA by incorporating the information
specified in figure 1 to paragraph (h) of this
AD into the Airworthiness Limitations
Section of the Instructions for Continued
Airworthiness.
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Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Rules and Regulations
(j) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Seattle ACO Branch,
FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or local Flight Standards
District Office, as appropriate. If sending
information directly to the manager of the
certification office, send it to the attention of
the person identified in paragraph (k) of this
AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by the Boeing
Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Seattle ACO
Branch, FAA, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) For service information that contains
steps that are labeled as Required for
Compliance (RC), the provisions of
paragraphs (j)(4)(i) and (j)(4)(ii) of this AD
apply.
(i) The steps labeled as RC, including
substeps under an RC step and any figures
identified in an RC step, must be done to
comply with the AD. An AMOC is required
for any deviations to RC steps, including
substeps and identified figures.
VerDate Sep<11>2014
16:02 Dec 27, 2018
Jkt 247001
(ii) Steps not labeled as RC may be
deviated from using accepted methods in
accordance with the operator’s maintenance
or inspection program without obtaining
approval of an AMOC, provided the RC steps,
including substeps and identified figures, can
still be done as specified, and the airplane
can be put back in an airworthy condition.
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Des Moines, Washington, on
December 18, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2018–28075 Filed 12–27–18; 8:45 am]
(k) Related Information
For more information about this AD,
contact Kevin Nguyen, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines,
WA 98198; phone and fax: 206–231–3555;
email: Kevin.Nguyen@faa.gov.
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
(l) Material Incorporated by Reference
14 CFR Part 39
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(i) Boeing Service Bulletin 777–28A0034,
Revision 3, dated September 25, 2015.
(ii) Boeing Service Bulletin 777–31–0218,
dated September 8, 2016.
(3) For service information identified in
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd.,
MC 110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet https://
www.myboeingfleet.com.
(4) You may view this service information
at the FAA, Transport Standards Branch,
2200 South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to https://
[Docket No. FAA–2018–0393; Product
Identifier 2018–NM–010–AD; Amendment
39–19536; AD 2018–26–06]
PO 00000
Frm 00011
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RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for all The
Boeing Company Model 737–600, –700,
–700C, –800, –900, and –900ER series
airplanes. This AD was prompted by
reports of loose, worn, or missing
attachment bolts for the main landing
gear (MLG) center door assemblies. This
AD requires repetitive detailed
inspections of the forward and aft MLG
center door assembly attachments for
loose, missing, damaged, or bottomedout attachment bolts, and any wear to
the retention clip assemblies as
applicable; and applicable on-condition
actions. This AD also provides an
SUMMARY:
E:\FR\FM\28DER1.SGM
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ER28DE18.009</GPH>
amozie on DSK3GDR082PROD with RULES
(i) Terminating Action for AD 2015–19–01
Accomplishment of the actions required by
paragraphs (g) and (h) of this AD on all
affected airplanes in an operator’s fleet
terminates all requirements of AD 2015–19–
01.
67043
]]>Agencies
[Federal Register Volume 83, Number 248 (Friday, December 28, 2018)]
[Rules and Regulations]
[Pages 67038-67043]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-28075]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-4219; Product Identifier 2015-NM-169-AD; Amendment
39-19535; AD 2018-26-05]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
The Boeing Company Model 777 airplanes. This AD was prompted by reports
of latently failed engine fuel shutoff spar valves discovered during
fuel filter replacement. This AD requires inspecting to determine the
part numbers (P/Ns) of the motor-operated valve (MOV) actuators at the
engine fuel shutoff spar valve positions, installing MOV actuators
having a certain acceptable part number or software if necessary, and
revising the maintenance or inspection program to add a new
airworthiness limitation. We are issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective February 1, 2019.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of February 1,
2019.
ADDRESSES: For service information identified in this final rule,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. You may view this service information at the
FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA.
For information on the availability of this material at the FAA, call
206-231-3195. It is also available on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
4219.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
4219; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this final rule, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations (phone: 800-647-
5527) is U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Kevin Nguyen, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone and fax: 206-231-3555; email:
Kevin.Nguyen@faa.gov.
SUPPLEMENTARY INFORMATION:
[[Page 67039]]
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain The Boeing Company
Model 777 airplanes. The NPRM published in the Federal Register on
March 8, 2016 (81 FR 12039). The NPRM was prompted by reports of
latently failed engine fuel shutoff spar valves discovered during fuel
filter replacement. The NPRM proposed to require replacing certain MOV
actuators with MOV actuators having a certain acceptable part number on
both airline information management system (AIMS) Version 1- and 2-
equipped airplanes, or installing a newer software version on AIMS
Version 2-equipped airplanes.
We issued a SNPRM to amend 14 CFR part 39 by adding an AD that
would apply to certain The Boeing Company Model 777 airplanes. The
SNPRM published in the Federal Register on August 21, 2017 (82 FR
39545). We issued the SNPRM to add a part number inspection, add an
AWL, and specify new AIMS software.
We are issuing this AD to address latent failure of the fuel
shutoff spar valve to the engine, which could result in the inability
to terminate fuel flow to the engine and, in the case of an engine
fire, could lead to wing failure.
Comments
We gave the public the opportunity to participate in developing
this final rule. The following presents the comments received on the
SNPRM and the FAA's response to each comment.
Request To Omit Inspection Requirement
American Airlines (American) requested that we revise paragraph (g)
of the proposed AD (in the SNPRM) to omit the requirement to inspect
for the MOV actuator part numbers, and to reflect only the essential
compliance requirements as stated in paragraphs (g)(1) and (g)(2) of
the proposed AD (in the SNPRM) (the conditional requirements that
depend on the part number found). The commenter stated that the
inspection is not necessary to accomplish any of the compliance options
and adds no value to the process.
We disagree with the request. The MOV actuator is a rotable part.
Several previously approved and existing interchangeable MOV actuator
part numbers may be installed at the engine fuel shutoff spar valve
positions. The MOV actuator installed at the engine fuel shutoff spar
valve positions at the time of airplane manufacture may have been later
replaced by an MOV actuator of a different part number. Because an
unsafe condition exists with certain part numbers, we have determined
that it is necessary to control the method by which an operator may
determine what part number is installed. In the absence of such a
control, an operator might simply assume that the part number delivered
with the airplane is still in place. The most positive method to verify
the installed part number is to inspect the part. Alternatively, as
stated in paragraph (g) of this AD, the FAA will accept verification
through a maintenance records check if the records positively show the
installed part number. We have not changed the AD regarding this issue.
Request To Incorporate AWL After MOV Actuator Installation
American requested that we revise paragraph (g)(1) of the proposed
AD (in the SNPRM) to include incorporation of new airworthiness
limitation (AWL) 28-AWL-MOVA, which is specified in paragraph (h) of
the proposed AD (in the SNPRM).
We disagree with the request. The commenter did not provide
rationale for the requested change, but we infer their request was to
have all required actions within paragraph (g) of this AD. We have
determined that it is better to structure the AD by separating required
actions that are discretely different into separate paragraphs. As
such, all required actions associated with inspecting and replacing the
affected MOV actuators are in paragraph (g) of this AD and all required
actions associated with the AWL revisions are in paragraph (h) of this
AD. Therefore, we find it unnecessary to change this AD regarding this
issue.
Request To Clarify Airplanes Subject to Inspection
Cathay Pacific noted a discrepancy in Boeing Service Bulletin 777-
28A0034, Revision 3, dated September 25, 2015. Some airplanes that
subsequently installed AIMS-2 Block Point (BP) Version 17A software may
no longer match the conditions for the service bulletin groups, and do
not fit the criteria of either paragraph (g)(1) or (g)(2) of the
proposed AD (in the SNPRM). Cathay Pacific therefore requested that we
revise paragraph (g) of the proposed AD (in the SNPRM) to clarify that
the inspection is required only on airplanes without AIMS-2 BP Version
17A software. The commenter reported that Boeing confirmed that the
service bulletin will be revised to address this discrepancy.
We agree with the request. We had intended to exclude the
inspection requirement for airplanes with AIMS-2 BP Version 17A
software installed. We have therefore revised paragraph (g) of this AD
to also state that no further action is required by paragraph (g) of
this AD if AIMS-2 BP Version 17 or later software is installed, which
also include AIMS-2 BP Versions 17.1 and 17A.
Request To Allow Alternative Service Information
Delta Air Lines (Delta) requested that we revise paragraph
(g)(2)(ii) of the proposed AD (in the SNPRM) to allow Boeing Service
Bulletin 777-31-0275, dated June 8, 2017, as another method to use to
install AIMS-2 BP Version 17A software or later-approved version. Delta
explained that this service bulletin describes procedures for modifying
the hardware and software related to converting from AIMS-1 to AIMS-2
software, including AIMS-2 BP Version 17A software. Delta added that
Boeing Service Bulletin 777-31-0275 specifies installation of the same
software as that specified in Boeing Service Bulletin 777-31-0218, and
provides an equivalent level of safety to that of the SNPRM.
We partially agree with the request. We agree that installation of
AIMS-2 BP Version 17A and later-approved software is an acceptable
alternative to replacing the MOV actuator, because that software allows
failure of any of the previously approved MOV actuator part numbers to
be detected and annunciated by the airplane display system. However, we
find it unnecessary to revise paragraph (g)(2)(ii) of this AD to add
another acceptable method of compliance (Boeing Service Bulletin 777-
31-0275) for the installation of AIMS-2 BP Version 17A software during
conversion of an airplane from AIMS-1 to AIMS-2 software. Instead, we
have revised paragraph (g) of this AD to clarify that no further action
is required by paragraph (g) of this AD if AIMS-2 BP Version 17 or
later software is installed.
Request To Provide Credit for AIMS-2 BP Version 17A Software
American and Delta requested that we revise paragraph (j) of the
proposed AD (in the SNPRM) to provide credit for installation of AIMS-2
BP Version 17A software. Delta noted a conflict between the ``Actions
Since the NPRM was Issued'' section of the SNPRM (which specified the
proposed AD would require installing AIMS-2 BP Version 17A software)
and paragraph (j) of the proposed AD (in the SNPRM) (which
[[Page 67040]]
specified credit for paragraph (g)(2)(ii) when AIMS-2 BP Version 17 or
17.1 software was installed before the effective date of this AD).
We agree to clarify that we have achieved similar results to the
commenters request since we have clarified the multiple references to
AIMS-2 BP Version 17 software in this AD, and that we have revised this
AD to exclude airplanes with AIMS-2 BP Version 17 or later software
installed from the requirements of paragraph (g) of this AD. Therefore,
we have not changed paragraph (j) and have determined that no further
change to the AD is necessary regarding this issue.
Request To Remove AWL Requirement
Boeing requested that we revise paragraph (h) of the proposed AD
(in the SNPRM) to remove the requirement to incorporate the new AWL.
Boeing noted that paragraphs (g)(1) and (g)(2)(i) of the proposed AD
(in the SNPRM) would require inspection of all affected airplanes and
replacement of all MOV actuators at the engine fuel shutoff spar valve
positions with MOV actuators having P/N MA30A1017 (Boeing P/N S343T003-
76). Boeing asserted that those proposed requirements would therefore
be redundant with the proposed requirement of paragraph (h) of the
proposed AD (in the SNPRM), since the AWL prohibits installation of
MA20A2027 (Boeing P/N S343T003-56) and P/N MA30A1001 (Boeing P/N
S343T003-66) MOV actuators at the engine fuel shutoff spar valve
positions.
We disagree with the request. As previously explained in the SNPRM,
the new AWL is necessary to prevent an airplane from being modified to
a pre-AD condition. Although the AWL would prohibit installation of the
MOV actuators at the engine fuel shutoff spar valve positions, these
two MOV actuator part numbers may still be installed at other locations
(as their failure in the other locations is of economic impact only),
and could be inadvertently re-installed at the engine fuel shutoff spar
valve positions. To address this concern, we added paragraph (h) to the
proposed AD (in the SNPRM) to specify the incorporation of the new AWL.
We have not changed this AD regarding this issue.
Request To Add Instructions for Maintenance Program Revision
Delta recommended that we add details on how to conduct the
maintenance or inspection program, such as inspection methods and
repetitive intervals, in order to clarify the proposed requirements of
paragraph (h) of the proposed AD (in the SNPRM). That proposed
requirement would require revising the maintenance program to
incorporate a new airworthiness limitation prohibiting the installation
of certain MOV actuators, and to maintain this limitation in the
operator's fleet maintenance program. Delta inferred that the purpose
of the proposed requirement is to ensure that P/Ns MA30A1001 and
MA20A2027 are not installed in the two engine fuel shutoff spar valve
positions once the requirements of paragraph (g) of the AD have been
complied with.
Delta stated that the requirement to incorporate a statement
indicating that a part is prohibited is not a maintenance program.
Delta stated that an aircraft maintenance program is not the
appropriate way to do this, adding that a ``parts prohibition''
statement (including locations--left and right engine fuel shutoff spar
valve positions, in this case) would be more appropriate to ensure that
a specific part number is not installed in the future. Delta stated
that similar parts prohibition statements are included in AD 2016-04-
20, Amendment 39-18414 (81 FR 10460, March 1, 2016), and AD 2013-05-03,
Amendment 39-17375 (78 FR 17290, March 21, 2013), such that operators
could then add notes to the airplane illustrated parts catalog (IPC),
aircraft maintenance manual (AMM), etc., to ensure that those parts are
not installed at the specified location in the future.
We disagree with the request. An AWL containing a parts prohibition
statement for a maintenance or inspection program has been required by
other ADs, and is appropriate in this case. Paragraph (h) of this AD
requires only the incorporation of the AWL item into the operator's
fleet, not specific ways to accomplish the AWL task or comply with the
restriction. Each operator is responsible for accomplishing the AWL
task and maintaining the AWL restriction. Although a parts prohibition
statement could be included in the AD, we chose to mandate this
requirement via incorporation of an AWL to be consistent with the
requirements of AD 2015-19-01, Amendment 39-18264 (80 FR 55521,
September 16, 2015) (``AD 2015-19-01''). AD 2015-19-01 required
revising the existing maintenance or inspection program to include a
new AWL that required certain actions for The Boeing Company Model 777
airplanes with MOV actuators having P/N MA20A2027 or P/N MA30A1001
installed at the engine fuel shutoff spar valve positions. The
prohibited MOV actuator part numbers at the engine fuel shutoff spar
valve positions are still physically interchangeable with the
acceptable part numbers and may be used in other valve locations, and
they are expected to remain in operators' parts stores for a long
period of time. We have not changed this AD regarding this issue.
Request To Revise Compliance Time to Incorporate AWL
Delta requested that we clarify the compliance time for
incorporating the new AWL into the maintenance program, as specified in
paragraph (h) of the proposed AD (in the SNPRM): 24 months after the
effective date of the AD, and after accomplishing the actions required
by (g). Delta recommended that the compliance time be changed to within
24 months after the effective date of the AD or after accomplishment of
the actions required by paragraph (g)(1) or (g)(2)(i) of the AD,
whichever occurs first. Delta also asked that we remove the condition
``after accomplishing the actions required by paragraph (g) of this AD
on all airplanes in an operator's fleet.'' Delta stated that the
current wording is unclear and appears to indicate operators must wait
until the actions of paragraph (g) of the AD are complete on their
Model 777 fleets before they can insert 28-AWL-MOVA into the
maintenance program. Delta believes the FAA's intent is to put in place
a part prohibition for MOV actuators at the engine fuel shutoff spar
valve positions on applicable airplanes without AIMS-2 BP Version 17
software or later version, and that when the requirements of paragraph
(g)(2)(ii) of the AD are completed, this AWL would no longer be
applicable.
We agree with the request. We have revised the compliance time in
paragraph (h) of this AD to ``within 24 months after the effective date
of the AD.'' This allows operators to incorporate the new AWL into
their maintenance program at any time within that 24-month period,
without waiting until all required actions on all affected airplanes in
the fleet are completed. This would also allow continued operation of
an airplane if another airplane having the pre-AD configuration is
introduced into an operator's fleet before the end of the compliance
time, even if this were to occur after the accomplishment of the
required actions on all other airplanes in the fleet.
Request To Exclude Model 777F Series Airplanes
FedEx requested that we exclude Model 777F series airplanes from
the proposed requirements of paragraphs (g), (h), and (i) of the
proposed AD (in the SNPRM). The service information,
[[Page 67041]]
Boeing Service Bulletin 777-28A0034, Revision 3, dated September 25,
2015, specifies that no work is necessary for airplanes in Group 7,
which includes Model 777F series airplanes.
We disagree with the request. Even though the commenter is correct
in that Boeing Service Bulletin 777-28A0034, Revision 3, dated
September 25, 2015, specifies that no work is necessary for airplanes
in Group 7, which includes Model 777F series airplanes, the intent of
this AD is to ensure that all airplanes identified in paragraph (c) of
this AD, which includes Model 777F series airplanes and other Group 7
airplanes, address the unsafe condition through compliance with the
requirements of the AD. Compliance with the requirements of paragraph
(g) of this AD may be accomplished by installing a certain MOV actuator
in accordance with Boeing Service Bulletin 777-28A0034, Revision 3,
dated September 25, 2015, or installing certain AIMS-2 BP Version 17 or
later software in accordance with Boeing Service Bulletin 777-31-0218,
dated September 8, 2016 (depending on configuration).
We have clarified the options available for some of the affected
airplanes, i.e., Group 7 airplanes with AIMS-2 BP Version 16 or earlier
software. Specifically, if the actions specified in paragraph (g)(2)(i)
of this AD are done, Figures 35 and 37 of Boeing Service Bulletin 777-
28A0034, Revision 3, dated September 25, 2015, can be used for
compliance regarding installation of the MOV actuator. Operators may
also install AIMS-2 BP Version 17A software in accordance with
paragraph (g)(2)(ii) of this AD. It is also necessary for operators of
affected Boeing Model 777F airplanes to incorporate the AWL
requirements specified in paragraph (h) of this AD.
Additional Changes to AD
The effectivity of Boeing Service Bulletin 777-28A0034, Revision 3,
dated September 25, 2015, incorrectly categorizes airplanes in Group 4
as only those with AIMS-1 software installed. We have confirmed with
Boeing that Group 4 airplanes includes airplanes with AIMS-1 software
or AIMS-2 BP Version 16 or earlier software; or AIMS-2 BP Version 17 or
later software. The airplane variable number listing in the service
information does include the AIMS-2 equipped airplanes. We have
therefore clarified for the purposes of the requirements in paragraph
(g)(2) of this AD to state that Group 4, as identified in Boeing
Service Bulletin 777-28A0034, Revision 3, dated September 25, 2015,
includes airplanes with AIMS-1 software or AIMS-2 BP Version 16 or
earlier software installed.
We have revised paragraph (i) in this AD to clarify that the
requirements of AD 2015-19-01 may be terminated only when the
requirements of paragraph (g) and (h) of this AD have been done on
``all affected airplanes in an operator's fleet.''
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this final rule with the changes described previously and minor
editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
SNPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the SNPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Service Bulletin 777-28A0034, Revision 3, dated
September 25, 2015. This service information describes procedures for,
among other things, inspection and replacement of the MOV actuators at
the engine fuel shutoff spar valve positions.
We also reviewed Boeing Service Bulletin 777-31-0218, dated
September 8, 2016. This service information describes procedures for
installing the AIMS-2 BP Version 17A software upgrade.
This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in the ADDRESSES section.
Costs of Compliance
We estimate that this AD affects 154 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Inspection...................... 1 work-hour x $85 $0 $85 $13,090.
per hour = $85.
Replacement of two MOV actuators 5 work-hours x $85 12,000 12,425 Up to $422,450.
without fuel tank access. per hour = $425.
Installation of AIMS-2 BP 7 work-hours x $85 0 595 Up to 71,400.
Version 17A software. per hour = $595.
----------------------------------------------------------------------------------------------------------------
We have determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although we
recognize that this number may vary from operator to operator. In the
past, we have estimated that this action takes 1 work-hour per
airplane. Since operators incorporate maintenance or inspection program
changes for their affected fleets, we have determined that a per-
operator estimate is more accurate than a per-airplane estimate.
Therefore, we estimate the total cost per operator to be $7,650 (90
work-hours x $85 per work-hour).
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service,
[[Page 67042]]
as authorized by FAA Order 8000.51C. In accordance with that order,
issuance of ADs is normally a function of the Compliance and
Airworthiness Division, but during this transition period, the
Executive Director has delegated the authority to issue ADs applicable
to transport category airplanes and associated appliances to the
Director of the System Oversight Division.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2018-26-05 The Boeing Company: Amendment 39-19535; Docket No. FAA-
2016-4219; Product Identifier 2015-NM-169-AD.
(a) Effective Date
This AD is effective February 1, 2019.
(b) Affected ADs
This AD affects AD 2015-19-01, Amendment 39-18264 (80 FR 55521,
September 16, 2015) (``AD 2015-19-01'').
(c) Applicability
This AD applies to The Boeing Company Model 777-200, 777-200LR,
777-300, 777-300ER, and 777F series airplanes, certificated in any
category, excluding line numbers 1165 and subsequent.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by reports of latently failed engine fuel
shutoff spar valves discovered during fuel filter replacement. We
are issuing this AD to address latent failure of the fuel shutoff
spar valve to the engine, which could result in the inability to
terminate fuel flow to the engine and, in the case of an engine
fire, could lead to wing failure.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Replacement
Within 24 months after the effective date of this AD: Do an
inspection to determine the part numbers (P/Ns) of the motor-
operated valve (MOV) actuators at the fuel shutoff spar valve
positions for the left and right engines, in accordance with the
Accomplishment Instructions of Boeing Service Bulletin 777-28A0034,
Revision 3, dated September 25, 2015. A review of airplane
maintenance records is acceptable in lieu of this inspection if the
part numbers can be conclusively determined from that review. If it
can be definitively determined, by visual inspection or airplane
maintenance records review, that P/N MA30A1017 (Boeing P/N S343T003-
76) is installed, or that airplane information management system
(AIMS) 2 Block Point (BP) Version 17 or later software is installed,
no further action is required by paragraph (g) of this AD.
(1) For any MOV actuator with a P/N other than P/N MA30A1017
(Boeing P/N S343T003-76) on an airplane having AIMS-1 installed:
Within 24 months after the effective date of this AD, install MOV
actuators having part number (P/N) MA30A1017 at the engine fuel
shutoff spar positions, in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777-28A0034, Revision 3,
dated September 25, 2015.
(2) For any MOV actuator with a P/N other than P/N MA30A1017
(Boeing P/N S343T003-76) on an airplane having AIMS-2 BP Version 16
software or earlier version, installed: Within 24 months after the
effective date of this AD, do the actions specified in paragraph
(g)(2)(i) or (g)(2)(ii) of this AD. For purposes of this AD,
airplanes identified as Group 4 in Boeing Service Bulletin 777-
28A0034, Revision 3, dated September 25, 2015, also include
airplanes with AIMS-2 BP Version 16 or earlier software installed.
(i) Install MOV actuators having P/N MA30A1017 at the engine
fuel shutoff spar valve positions, in accordance with the
Accomplishment Instructions of Boeing Service Bulletin 777-28A0034,
Revision 3, dated September 25, 2015. For airplanes identified as
Group 7 in Boeing Service Bulletin 777-28A0034, Revision 3, dated
September 25, 2015, with AIMS-2 BP Version 16 or earlier software,
the instructions for installing P/N MA30A1017 (Boeing P/N S343T003-
76) are in Figures 35 and 37 of Boeing Service Bulletin 777-28A0034,
Revision 3, dated September 25, 2015.
(ii) Install AIMS-2 BP Version 17A software or later-approved
version, in accordance with the Accomplishment Instructions of
Boeing Service Bulletin 777-31-0218, dated September 8, 2016. Later-
approved versions of the software are only those Boeing software
versions that are approved as a replacement for AIMS-2 BP Version
17A software, and approved as part of the type design by the FAA
after issuance of Boeing Service Bulletin 777-31-0218, dated
September 8, 2016.
(h) Revision of Maintenance or Inspection Program
Within 24 months after the effective date of this AD, revise the
maintenance or inspection program, as applicable, to add
Airworthiness Limitation (AWL) 28-AWL-MOVA by incorporating the
information specified in figure 1 to paragraph (h) of this AD into
the Airworthiness Limitations Section of the Instructions for
Continued Airworthiness.
[[Page 67043]]
[GRAPHIC] [TIFF OMITTED] TR28DE18.009
(i) Terminating Action for AD 2015-19-01
Accomplishment of the actions required by paragraphs (g) and (h)
of this AD on all affected airplanes in an operator's fleet
terminates all requirements of AD 2015-19-01.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle ACO Branch, FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request
to your principal inspector or local Flight Standards District
Office, as appropriate. If sending information directly to the
manager of the certification office, send it to the attention of the
person identified in paragraph (k) of this AD. Information may be
emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by the Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has been authorized by the
Manager, Seattle ACO Branch, FAA, to make those findings. To be
approved, the repair method, modification deviation, or alteration
deviation must meet the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(j)(4)(i) and (j)(4)(ii) of this AD apply.
(i) The steps labeled as RC, including substeps under an RC step
and any figures identified in an RC step, must be done to comply
with the AD. An AMOC is required for any deviations to RC steps,
including substeps and identified figures.
(ii) Steps not labeled as RC may be deviated from using accepted
methods in accordance with the operator's maintenance or inspection
program without obtaining approval of an AMOC, provided the RC
steps, including substeps and identified figures, can still be done
as specified, and the airplane can be put back in an airworthy
condition.
(k) Related Information
For more information about this AD, contact Kevin Nguyen,
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-
3555; email: Kevin.Nguyen@faa.gov.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Service Bulletin 777-28A0034, Revision 3, dated
September 25, 2015.
(ii) Boeing Service Bulletin 777-31-0218, dated September 8,
2016.
(3) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; internet https://www.myboeingfleet.com.
(4) You may view this service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For
information on the availability of this material at the FAA, call
206-231-3195.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Des Moines, Washington, on December 18, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-28075 Filed 12-27-18; 8:45 am]
BILLING CODE 4910-13-P
