Airworthiness Directives; The Boeing Company Airplanes, 25954-25958 [2017-11291]
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Issued in Fort Worth, Texas, on May 30,
2017.
Lance T. Gant,
Manager, Rotorcraft Directorate, Aircraft
Certification Service.
SW., Renton, WA. For information on
the availability of this material at the
FAA, call 425–227–1221. It is also
available on the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
8179.
Examining the AD Docket
[FR Doc. 2017–11625 Filed 6–5–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–8179; Directorate
Identifier 2015–NM–201–AD; Amendment
39–18913; AD 2017–11–14]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are superseding
Airworthiness Directive (AD) 2011–26–
03, which applied to certain The Boeing
Company Model 777–200, –200LR,
–300, and –300ER series airplanes. AD
2011–26–03 required installing Teflon
sleeving under the clamps of certain
wire bundles routed along the fuel tank
boundary structure, and cap sealing
certain penetrating fasteners of the main
and center fuel tanks. This AD requires
certain inspections for certain airplanes,
corrective actions if necessary, and
installation of Teflon sleeves under
certain wire bundle clamps. This AD
was prompted by a report indicating
that additional airplanes are affected by
the identified unsafe condition. We are
issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective July 11,
2017.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of July 11, 2017.
The Director of the Federal Register
approved the incorporation by reference
of certain other publications listed in
this AD as of January 20, 2011 (75 FR
78588, December 16, 2010).
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 referenced service
information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue
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SUMMARY:
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prevent arcing inside the main and
center fuel tanks in the event of a fault
current or lightning strike, which, in
combination with flammable fuel
vapors, could result in a fuel tank
explosion and consequent loss of the
airplane.
Comments
We gave the public the opportunity to
participate in developing this AD. The
following presents the comments
received on the NPRM and the FAA’s
response to each comment.
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
8179; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this AD, the regulatory
evaluation, any comments received, and
other information. The address for the
Docket Office (phone: 800–647–5527) is
Docket Management Facility, 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: Tak
Kobayashi, Aerospace Engineer,
Propulsion Branch, ANM–140S, Seattle
Aircraft Certification Office (ACO),
FAA, 1601 Lind Avenue SW., Renton,
WA 98057–3356; phone: 425–917–6499;
fax: 425–917–6590; email:
takahisa.kobayashi@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011–26–03,
Amendment 39–16893 (76 FR 78138,
December 16, 2011) (‘‘AD 2011–26–
03’’). AD 2011–26–03 applied to certain
The Boeing Company Model 777–200,
–200LR, –300, and –300ER series
airplanes. The NPRM published in the
Federal Register on July 20, 2016 (81 FR
47084). The NPRM was prompted by a
report indicating that additional
airplanes are affected by the identified
unsafe condition. The NPRM proposed
to continue to require installing Teflon
sleeving under the clamps of certain
wire bundles routed along the fuel tank
boundary structure, and cap sealing
certain penetrating fasteners of the main
and center fuel tanks. The NPRM also
proposed to revise the applicability by
adding The Boeing Company Model
777F series airplanes. The NPRM also
proposed to add, for certain airplanes,
detailed inspections of certain wire
bundle clamps, certain Teflon sleeves,
and certain fasteners; corrective actions
if necessary; and installation of Teflon
sleeves under certain wire bundle
clamps. We are issuing this AD to
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Request To Withdraw the NPRM
Boeing requested that we withdraw
the NPRM. The commenter stated that
the actions proposed by the NPRM are
no longer necessary, since the unsafe
condition is adequately addressed by
repetitive inspections required by the
electrical wiring interconnection system
(EWIS) enhanced zonal analysis
procedure (EZAP) inspection program
required by 14 CFR part 26. The
commenter pointed out that, since the
time this issue was determined to be a
safety issue, the exposure assumed
under the safety assessment has
changed due to the inspection program.
The commenter stated that the safety
concern was that the failure of multiple
protective design features for wiring
installations could be a single cascading
failure since the exposure was the life
of the airplane. The commenter stated
that since the implementation of the
EWIS EZAP inspections, where the
interval is now 6 years, this is no longer
considered to be a single failure as the
exposure has been reduced to where the
wiring and installation is not expected
to fail in this inspection interval and
any potential wear would be detected
and would be repaired or removed and
replaced in accordance with
maintenance activities.
We disagree to withdraw the NPRM.
The EWIS EZAP repetitive inspection
program is implemented by FAA
operating rules (14 CFR 121.1111 or 14
CFR 129.111), which are applicable only
to operators that are required to comply
with those operating rules. The FAA is
obligated to advise foreign airworthiness
authorities of unsafe conditions
identified in products manufactured in
the United States, including Boeing
airplanes, in accordance with bilateral
airworthiness agreements with countries
around the world. The issuance of ADs
is the means by which the FAA satisfies
this obligation. Even if the FAA agreed
that the actions required by 14 CFR
121.1111 and 14 CFR 129.111
adequately addressed the unsafe
condition, the FAA would still issue
this AD to address airplanes that may
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not be operated in accordance with
those requirements. Additionally, the
FAA does not agree that the EWIS EZAP
repetitive inspection program has been
demonstrated as sufficient to allow a
determination that chafing through the
wire insulation of the unmodified (preAD) configuration is not a foreseeable
single failure. The FAA understands
that the EWIS EZAP repetitive
inspection program interval for this area
was determined based on a later
modified design, and that design has
additional Teflon sleeving. For these
reasons, we have made no change to this
final rule in this regard.
Request for Clarification of Safety
Evaluation Criteria
Boeing requested that we clarify the
use of ‘‘unacceptable (failure)
experience’’ in the Discussion section of
the NPRM and that was used as a safety
evaluation criterion under Special
Federal Aviation Regulation No. 88
(SFAR 88). The commenter requested
better definition of ‘‘unacceptable
(failure) experience’’ or the addition of
detailed guidance that defines how to
identify an ‘‘unacceptable (failure)
experience.’’ The commenter also
indicated that Boeing airplanes at the
time of design approval are intended to
meet all applicable regulations
including 14 CFR 25.601, which
specifically prohibits hazardous or
unreliable features.
We agree that clarification is
necessary. To provide standardized
policy for determining the need for
mandatory action relative to the finding
from the fuel system safety review
required by SFAR 88, the FAA issued
Memorandum 2003–112–15, SFAR 88—
Mandatory Action Decision Criteria,
dated February 25, 2003. One of the
criteria provided in the policy memo is
that, for any tank (either high or low
flammability exposure time), all failures
identified in service, that result in
thermal or electrical energy dissipation
into the fuel tank system, which could
create an ignition hazard, or that make
fuel tank safety protection devices
inoperative (e.g., fuel pump canister,
wire sleeving, bonding lead), are
considered unsafe conditions and must
be addressed by corrective action (i.e.,
AD). This criterion is independent of
any compliance showing or finding
previously made as part of a type
certification program. The policy memo
criteria are mentioned in the Discussion
section of each NPRM that resulted from
an SFAR 88 unsafe condition
determination. Additionally, the NPRM
Discussion is not repeated in the final
rule, so no change to this final rule is
necessary in this regard.
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Request for Clarification of Credit for
Actions Accomplished Previously
Boeing requested that we revise
paragraph (l) of the proposed AD so that
it is clear that credit will be given for
past work that has already been
accomplished on other Boeing Model
777 airplanes. No justification was
provided, however, the commenter
stated that the NPRM is adding the
missing airplanes and it uses the latest
service information to reset the method
of compliance.
We infer that the commenter is
requesting clarification for taking credit
for actions required by paragraph (g)(l)
of this AD using earlier revisions of the
service information. Paragraph (l)(1) of
this AD provides credit for actions
accomplished before January 20, 2011
(the effective date of AD 2010–24–12,
Amendment 39–16531 (75 FR 78588,
December 16, 2010) (‘‘AD 2010–24–
12’’)), using service information
revisions earlier than Boeing Service
Bulletin 777–57A0050, Revision 2,
dated May 14, 2009, required by
paragraph (g)(1) of AD 2010–24–12.
Accomplishing the actions using Boeing
Service Bulletin 777–57A0050, Revision
3, dated February 18, 2014, has been
approved as an alternative method of
compliance (AMOC) for paragraph (g)(l)
of AD 2011–26–03, and AMOCs
approved previously for AD 2011–26–03
are approved as AMOCs for the
corresponding provisions of this AD as
specified in paragraph (m)(4) of this AD.
After the effective date of this AD, only
Boeing Service Bulletin 777–57A0050,
Revision 4, dated September 28, 2015 is
allowed for compliance with paragraph
(g)(l) of this AD. Paragraphs (i) and (j)
of this AD require actions for airplanes
not covered in paragraph (g)(l) of this
AD and also require additional actions
for those airplanes that accomplished
the actions required by paragraph (g)(l)
of this AD using service bulletin
revisions earlier than Boeing Service
Bulletin 777–57A0050, Revision 4,
dated September 28, 2015. Therefore, no
credit is provided for actions required
by paragraphs (i) and (j) of this AD using
service bulletin revisions earlier than
Boeing Service Bulletin 777–57A0050,
Revision 4, dated September 28, 2015.
We have not changed this AD in this
regard.
Request To Simplify Compliance
Implementation Time Frame
Boeing requested that we revise
paragraphs (i), (j), and (k) of the
proposed AD to simplify the AD
compliance implementation time frame.
The commenter stated that the NPRM
sets the requirements to be completed
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within 60 months of different revisions
of different documents with an
exception specified in paragraph (k) of
the proposed AD, and that the proposed
requirements were cumbersome and
unclear. The commenter did not provide
any explanation of how the paragraphs
should be revised.
We agree that clarification is
necessary. The NPRM proposed to
supersede AD 2011–26–03 and added
new requirements in paragraphs (i) and
(j) of this AD. Paragraph (k) of this AD
provides exceptions to the service
information. For the new requirements
in this AD, the FAA has determined that
the compliance times are reasonable
based on consideration of the risk level
associated with the unsafe condition
and the time necessary to perform the
work. In addition, the compliance times
in paragraphs (i) and (j) of this AD do
not refer to any service documents (both
paragraphs refer to Boeing Service
Bulletin 777–57A0050, Revision 4,
dated September 28, 2015, as the
appropriate source of service
information for accomplishing the
actions in those paragraphs). Therefore,
we have determined that the
requirements of this AD are adequate
and clear. We have not changed this AD
in this regard.
Clarification of Service Information
Requirement
Under the ‘‘Differences Between This
Proposed AD and the Service
Information’’ section of the NPRM, we
noted that the corrections to group
applicability for ‘‘WORK PACKAGE 21:
More Work: Rear Spar Wire Bundle
Teflon Sleeve Installation,’’ Figure 3,
and Figure 100 of Boeing Service
Bulletin 777–57A0050, Revision 4,
dated September 28, 2015, were
included in paragraphs (k)(1), (k)(2), and
(k)(3) of the proposed AD. Paragraph
(k)(1) of this AD specifies that WORK
PACKAGE 21 applies to Groups 5
through 43 (including Configurations 1
and 2) to correct the error in Boeing
Service Bulletin 777–57A0050, Revision
4, dated September 28, 2015, which
only identifies Configuration 2 of
Groups 5 through 43 as applicable.
Paragraph (k)(1) of this AD, which is
referenced by paragraph (j) of this AD,
is intended to clarify the airplanes
affected by the requirements specified
in paragraph (j) of this AD. To further
clarify this aspect, we have revised
paragraph (j) of this AD to specifically
reference Groups 5 through 43,
Configurations 1 and 2 airplanes.
We have also revised paragraph (m)(4)
of this AD to accept AMOCs approved
previously for AD 2010–24–12 as
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fasteners of the main and center fuel
tanks. The service information also
describes detailed inspections of certain
wire bundle clamps, certain Teflon
sleeves, and certain fasteners; corrective
actions if necessary; and installation of
Teflon sleeves under certain wire
bundle clamps. 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.
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 NPRM for
correcting the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
AMOCs for the corresponding
provisions of this AD.
Clarification of Unsafe Condition
We have revised the Discussion
section of this final rule and paragraph
(e) of this AD to clarify that we are
issuing this AD to address arcing inside
the main and center fuel tanks in the
event of a fault current or lightning
strike, which, in combination with
flammable fuel vapors, could result in a
fuel tank explosion and consequent loss
of the airplane.
Related Service Information Under 1
CFR Part 51
We reviewed Boeing Service Bulletin
777–57A0050, Revision 4, dated
September 28, 2015. The service
information describes procedures for
installing Teflon sleeving under the
clamps of certain wire bundles routed
along the fuel tank boundary structure,
and cap sealing certain penetrating
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this AD
Costs of Compliance
We estimate that this AD affects 182
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
ESTIMATED COSTS
Action
Labor cost
Install Teflon sleeving and cap sealing (retained actions from AD 2011–26–03).
Detailed inspections and installation of Teflon sleeves (new actions).
Up to 358 work-hours × $85 per hour =
$30,430.
Up to 53 work-hours × $85 per hour =
$4,505.
Cost per
product
Cost on U.S.
operators
Up to $32,671
Up to $5,946,122.
Up to $4,505
Up to $819,910.
Parts cost
$2,241
(1)
1 We have received no definitive data that would enable us to provide parts cost estimates for the installation of Teflon sleeves (new action)
specified in this AD.
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We have received no definitive data
that would enable us to provide cost
estimates for the on-condition actions
specified in this AD.
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.
Regulatory Findings
We have determined that 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
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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.
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§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD)
2011–26–03, Amendment 39–16893 (76
FR 78138, December 16, 2011), and
adding the following new AD:
■
2017–11–14 The Boeing Company:
Amendment 39–18913; Docket No.
FAA–2016–8179; Directorate Identifier
2015–NM–201–AD.
(a) Effective Date
This AD is effective July 11, 2017.
(b) Affected ADs
This AD replaces AD 2011–26–03,
Amendment 39–16893 (76 FR 78138,
December 16, 2011) (‘‘AD 2011–26–03’’).
(c) Applicability
This AD applies to The Boeing Company
airplanes, certificated in any category, as
identified in the applicable service
information specified in paragraphs (c)(1),
(c)(2), (c)(3), and (c)(4) of this AD.
(1) For The Boeing Company Model 777–
200, –200LR, –300, –300ER, and 777F
airplanes: Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015.
(2) For The Boeing Company Model 777–
200 and –300 airplanes: Boeing Alert Service
Bulletin 777–57A0051, dated May 15, 2006.
(3) For The Boeing Company Model 777–
200, –300, and –300ER airplanes: Boeing
Alert Service Bulletin 777–57A0057,
Revision 1, dated August 2, 2007.
(4) For The Boeing Company Model 777–
200, –200LR, –300, and –300ER airplanes:
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Boeing Alert Service Bulletin 777–57A0059,
dated October 30, 2008.
(d) Subject
Air Transport Association (ATA) of
America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by fuel system
reviews conducted by the manufacturer. We
are issuing this AD to prevent arcing inside
the main and center fuel tanks in the event
of a fault current or lightning strike, which,
in combination with flammable fuel vapors,
could result in a fuel tank explosion and
consequent loss of the airplane.
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(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Retained Corrective Actions (Installing
Teflon Sleeving, Cap Sealing, One-Time
Inspection), With Revised Service
Information
This paragraph restates the requirements of
paragraph (g) of AD 2011–26–03, with
revised service information. Within 60
months after January 20, 2011 (the effective
date of AD 2010–24–12, Amendment 39–
16531 (75 FR 78588, December 16, 2010)
(‘‘AD 2010–24–12’’)), do the applicable
actions specified in paragraph (g)(1), (g)(2),
(g)(3), or (g)(4) of this AD, except as required
by paragraph (k)(2) of this AD.
(1) For airplanes identified in Boeing
Service Bulletin 777–57A0050, Revision 2,
dated May 14, 2009: Install Teflon sleeving
under the clamps of certain wire bundles
routed along the fuel tank boundary
structure, and cap seal certain penetrating
fasteners of the fuel tanks, in accordance
with the Accomplishment Instructions of
Boeing Service Bulletin 777–57A0050,
Revision 2, dated May 14, 2009; or Boeing
Service Bulletin 777–57A0050, Revision 4,
dated September 28, 2015. As of the effective
date of this AD, only Boeing Service Bulletin
777–57A0050, Revision 4, dated September
28, 2015, may be used to accomplish the
actions required by this paragraph.
(2) For airplanes identified in Boeing Alert
Service Bulletin 777–57A0051, dated May
15, 2006: Cap seal certain penetrating
fasteners of the fuel tanks, in accordance
with the Accomplishment Instructions of
Boeing Alert Service Bulletin 777–57A0051,
dated May 15, 2006.
(3) For airplanes identified in Boeing Alert
Service Bulletin 777–57A0057, Revision 1,
dated August 2, 2007: Do a general visual
inspection to determine if certain fasteners
are cap sealed, and do all applicable
corrective actions, in accordance with the
Accomplishment Instructions of Boeing Alert
Service Bulletin 777–57A0057, Revision 1,
dated August 2, 2007. Do all applicable
corrective actions before further flight.
(4) For Model 777–200, –300, and –300ER
airplanes identified in Boeing Alert Service
Bulletin 777–57A0059, dated October 30,
2008: Cap seal the fasteners in the center fuel
tanks that were not sealed during production,
in accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin
777–57A0059, dated October 30, 2008.
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(h) Retained Cap Sealing the Fasteners, With
No Changes
This paragraph restates the requirements of
paragraph (i) of AD 2011–26–03, with no
changes. For Model 777–200LR airplanes
identified in Boeing Alert Service Bulletin
777–57A0059, dated October 30, 2008:
Within 60 months after January 3, 2012 (the
effective date of AD 2011–26–03), cap seal
the fasteners in the center fuel tanks that
were not sealed during production, in
accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin
777–57A0059, dated October 30, 2008.
(i) New Detailed Inspection and Corrective
Actions
For Group 1, Configurations 2 through 4
airplanes; Groups 2 through 4, Configurations
3 through 5 airplanes; Groups 5 through 43,
Configuration 1 airplanes; and Groups 44 and
45 airplanes; as identified in Boeing Service
Bulletin 777–57A0050, Revision 4, dated
September 28, 2015: Within 60 months after
the effective date of this AD, do the
applicable actions specified in paragraphs
(i)(1), (i)(2), and (i)(3) of this AD, except as
required by paragraph (k)(2) of this AD.
(1) For Group 1, Configurations 2 through
4 airplanes; Groups 2 through 4,
Configurations 3 through 5 airplanes; Groups
5 through 43, Configuration 1 airplanes; and
Groups 44 and 45 airplanes; as identified in
Boeing Service Bulletin 777–57A0050,
Revision 4, dated September 28, 2015: Do a
detailed inspection for installation of Teflon
sleeves under certain wire bundle clamps, as
applicable; a detailed inspection to
determine the type of wire bundle clamp;
and all applicable corrective actions; in
accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015. Do all applicable corrective actions
before further flight.
(2) For Group 1, Configurations 2 through
4 airplanes; and Groups 2 through 4,
Configurations 3 through 5 airplanes; as
identified in Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015: Do a detailed inspection for correct
installation of certain Teflon sleeves, as
applicable; and do all applicable corrective
actions; in accordance with the
Accomplishment Instructions of Boeing
Service Bulletin 777–57A0050, Revision 4,
dated September 28, 2015. Do all applicable
corrective actions before further flight.
(3) For Group 1, Configurations 2 through
4 airplanes; and Groups 2 through 4,
Configurations 3 through 5 airplanes; as
identified in Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015: Do a detailed inspection for cap sealing
of certain fasteners, as applicable; and do all
applicable corrective actions; in accordance
with the Accomplishment Instructions of
Boeing Service Bulletin 777–57A0050,
Revision 4, dated September 28, 2015. Do all
applicable corrective actions before further
flight.
(j) New Installation of Teflon Sleeves
For Group 1, Configurations 2 through 5
airplanes; Groups 2 through 4, Configurations
3 through 6 airplanes; and Groups 5 through
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25957
43, Configurations 1 and 2 airplanes; as
identified in Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015: Within 60 months after the effective
date of this AD, install Teflon sleeves under
certain wire bundle clamps, as applicable, in
accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015, except as required by paragraphs (k)(1),
(k)(2), and (k)(3) of this AD.
(k) Exceptions to the Service Information
(1) Where ‘‘WORK PACKAGE 21: More
Work: Rear Spar Wire Bundle Teflon sleeve
Installation’’ of Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015, specifies ‘‘Groups 5 through 43,
Configuration 2,’’ for this AD, ‘‘WORK
PACKAGE 21: More Work: Rear Spar Wire
Bundle Teflon sleeve Installation’’ of Boeing
Service Bulletin 777–57A0050, Revision 4,
dated September 28, 2015, applies to all
configurations of Groups 5 through 43
airplanes.
(2) Where Figure 3 of Boeing Service
Bulletin 777–57A0050, Revision 4, dated
September 28, 2015, specifies ‘‘Groups 1
through 7, and 9 through 43,’’ for this AD,
Figure 3 of Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015, applies to Groups 1 through 43
airplanes.
(3) Where Figure 100 of Boeing Service
Bulletin 777–57A0050, Revision 4, dated
September 28, 2015, specifies ‘‘Groups 5
through 43, Configuration 2,’’ for this AD,
Figure 100 of Boeing Service Bulletin 777–
57A0050, Revision 4, dated September 28,
2015, applies to all configurations of Groups
5 through 43 airplanes.
(l) Credit for Previous Actions
(1) This paragraph provides credit for the
actions specified in paragraph (g)(1) of this
AD, if those actions were performed before
January 20, 2011 (the effective date of AD
2010–24–12), using Boeing Alert Service
Bulletin 777–57A0050, dated January 26,
2006; or Boeing Alert Service Bulletin 777–
57A0050, Revision 1, dated August 2, 2007;
provided that the applicable additional work
specified in Boeing Service Bulletin 777–
57A0050, Revision 2, dated May 14, 2009, is
done within the compliance time specified in
paragraph (g) of this AD. The additional work
must be done in accordance with Boeing
Service Bulletin 777–57A0050, Revision 2,
dated May 14, 2009.
(2) This paragraph provides credit for the
actions specified in paragraph (g)(3) of this
AD, if those actions were performed before
January 20, 2011 (the effective date of AD
2010–24–12), using Boeing Alert Service
Bulletin 777–57A0057, dated August 7, 2006.
(m) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Seattle Aircraft
Certification Office (ACO), 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 ACO, send it to the
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06JNR1
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Federal Register / Vol. 82, No. 107 / Tuesday, June 6, 2017 / Rules and Regulations
attention of the person identified in
paragraph (n)(1) of this AD. Information may
be emailed to: 9-ANM-Seattle-ACO-AMOCRequests@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, 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) AMOCs approved previously for AD
2011–26–03 and AD 2010–24–12 are
approved as AMOCs for the corresponding
provisions of this AD.
sradovich on DSK3GMQ082PROD with RULES
(n) Related Information
(1) For more information about this AD,
contact Tak Kobayashi, Aerospace Engineer,
Propulsion Branch, ANM–140S, FAA, Seattle
ACO, 1601 Lind Avenue SW., Renton, WA
98057–3356; phone: 425–917–6499; fax: 425–
917–6590; email: takahisa.kobayashi@
faa.gov.
(2) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (o)(5) and (o)(6) of this AD.
(o) 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.
(3) The following service information was
approved for IBR on July 11, 2017.
(i) Boeing Service Bulletin 777–57A0050,
Revision 4, dated September 28, 2015.
(ii) Reserved.
(4) The following service information was
approved for IBR on January 20, 2011 (75 FR
78588, December 16, 2010).
(i) Boeing Alert Service Bulletin 777–
57A0051, dated May 15, 2006.
(ii) Boeing Alert Service Bulletin 777–
57A0057, Revision 1, dated August 2, 2007.
(iii) Boeing Alert Service Bulletin 777–
57A0059, dated October 30, 2008.
(iv) Boeing Service Bulletin 777–57A0050,
Revision 2, dated May 14, 2009.
(5) 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.
(6) You may view this service information
at the FAA, Transport Airplane Directorate,
1601 Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
VerDate Sep<11>2014
18:18 Jun 05, 2017
Jkt 241001
(7) 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 Renton, Washington, on May 23,
2017.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–11291 Filed 6–5–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2016–9285; Airspace
Docket No. 16–ANE–2]
Amendment of Class E Airspace, Bar
Harbor, ME
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule
AGENCY:
This action amends Class E
airspace at Bar Harbor, ME, by removing
the part-time status of the Class E
surface airspace at Hancock County-Bar
Harbor Airport. The boundaries and
operating requirements of these airspace
areas remain the same. This action also
updates the airport’s geographic
coordinates and corrects the airport
name in the airspace designation.
DATES: Effective 0901 UTC, August 17,
2017. The Director of the Federal
Register approves this incorporation by
reference action under title 1, Code of
Federal Regulations, part 51, subject to
the annual revision of FAA Order
7400.11 and publication of conforming
amendments.
ADDRESSES: FAA Order 7400.11A,
Airspace Designations and Reporting
Points, and subsequent amendments can
be viewed online at https://www.faa.gov/
air_traffic/publications/. For further
information, you can contact the
Airspace Policy Group, Federal Aviation
Administration, 800 Independence
Avenue SW., Washington, DC 20591;
telephone: (202) 267–8783. The Order is
also available for inspection at the
National Archives and Records
Administration (NARA). For
information on the availability of FAA
Order 7400.11A at NARA, call (202)
741–6030, or go to https://
www.archives.gov/federal_register/
code_of_federal-regulations/ibr_
locations.html.
SUMMARY:
PO 00000
Frm 00028
Fmt 4700
Sfmt 4700
FAA Order 7400.11, Airspace
Designations and Reporting Points, is
published yearly and effective on
September 15.
FOR FURTHER INFORMATION CONTACT: John
Fornito, Operations Support Group,
Eastern Service Center, Federal Aviation
Administration, P.O. Box 20636,
Atlanta, Georgia 30320; telephone (404)
305–6364.
SUPPLEMENTARY INFORMATION:
Authority for This Rulemaking
The FAA’s authority to issue rules
regarding aviation safety is found in
Title 49 of the United States Code.
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. This rulemaking is
promulgated under the authority
described in Subtitle VII, Part A,
Subpart I, Section 40103. Under that
section, the FAA is charged with
prescribing regulations to assign the use
of airspace necessary to ensure the
safety of aircraft and the efficient use of
airspace. This regulation is within the
scope of that authority as it amends
Class E airspace at Hancock County-Bar
Harbor Airport, Bar Harbor, ME, to
support IFR operations under standard
instrument approach procedures at the
airport.
Availability and Summary of
Documents for Incorporation by
Reference
This document proposes to amend
FAA Order 7400.11A, Airspace
Designations and Reporting Points,
dated August 3, 2016, and effective
September 15, 2016. FAA Order
7400.11A is publicly available as listed
in the ADDRESSES section of this
document. FAA Order 7400.11A lists
Class A, B, C, D, and E airspace areas,
air traffic service routes, and reporting
points.
The Rule
This action amends Title 14 Code of
Federal Regulations (14 CFR) part 71 by
removing the part-time status of the
Class E surface airspace, and updating
the geographic coordinates of Hancock
County-Bar Harbor Airport, Bar Harbor,
ME, to be in concert with the FAA’s
aeronautical database. Also, the airport’s
name was misspelled in the descriptor
title. This action corrects that error.
This is an administrative change and
does not affect the boundaries, or
operating requirements of the airspace,
therefore, notice and public procedure
under 5 U.S.C. 553(b) are unnecessary.
The FAA has determined that this
regulation only involves an established
E:\FR\FM\06JNR1.SGM
06JNR1
Agencies
[Federal Register Volume 82, Number 107 (Tuesday, June 6, 2017)]
[Rules and Regulations]
[Pages 25954-25958]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-11291]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-8179; Directorate Identifier 2015-NM-201-AD;
Amendment 39-18913; AD 2017-11-14]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding Airworthiness Directive (AD) 2011-26-03,
which applied to certain The Boeing Company Model 777-200, -200LR, -
300, and -300ER series airplanes. AD 2011-26-03 required installing
Teflon sleeving under the clamps of certain wire bundles routed along
the fuel tank boundary structure, and cap sealing certain penetrating
fasteners of the main and center fuel tanks. This AD requires certain
inspections for certain airplanes, corrective actions if necessary, and
installation of Teflon sleeves under certain wire bundle clamps. This
AD was prompted by a report indicating that additional airplanes are
affected by the identified unsafe condition. We are issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective July 11, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of July 11,
2017.
The Director of the Federal Register approved the incorporation by
reference of certain other publications listed in this AD as of January
20, 2011 (75 FR 78588, December 16, 2010).
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 referenced service information
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the availability of this material at the
FAA, call 425-227-1221. It is also available on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
8179.
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-
8179; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this AD, the regulatory evaluation, any comments received, and
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, 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: Tak Kobayashi, Aerospace Engineer,
Propulsion Branch, ANM-140S, Seattle Aircraft Certification Office
(ACO), FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-
917-6499; fax: 425-917-6590; email: takahisa.kobayashi@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011-26-03, Amendment 39-16893 (76 FR 78138,
December 16, 2011) (``AD 2011-26-03''). AD 2011-26-03 applied to
certain The Boeing Company Model 777-200, -200LR, -300, and -300ER
series airplanes. The NPRM published in the Federal Register on July
20, 2016 (81 FR 47084). The NPRM was prompted by a report indicating
that additional airplanes are affected by the identified unsafe
condition. The NPRM proposed to continue to require installing Teflon
sleeving under the clamps of certain wire bundles routed along the fuel
tank boundary structure, and cap sealing certain penetrating fasteners
of the main and center fuel tanks. The NPRM also proposed to revise the
applicability by adding The Boeing Company Model 777F series airplanes.
The NPRM also proposed to add, for certain airplanes, detailed
inspections of certain wire bundle clamps, certain Teflon sleeves, and
certain fasteners; corrective actions if necessary; and installation of
Teflon sleeves under certain wire bundle clamps. We are issuing this AD
to prevent arcing inside the main and center fuel tanks in the event of
a fault current or lightning strike, which, in combination with
flammable fuel vapors, could result in a fuel tank explosion and
consequent loss of the airplane.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the NPRM and
the FAA's response to each comment.
Request To Withdraw the NPRM
Boeing requested that we withdraw the NPRM. The commenter stated
that the actions proposed by the NPRM are no longer necessary, since
the unsafe condition is adequately addressed by repetitive inspections
required by the electrical wiring interconnection system (EWIS)
enhanced zonal analysis procedure (EZAP) inspection program required by
14 CFR part 26. The commenter pointed out that, since the time this
issue was determined to be a safety issue, the exposure assumed under
the safety assessment has changed due to the inspection program. The
commenter stated that the safety concern was that the failure of
multiple protective design features for wiring installations could be a
single cascading failure since the exposure was the life of the
airplane. The commenter stated that since the implementation of the
EWIS EZAP inspections, where the interval is now 6 years, this is no
longer considered to be a single failure as the exposure has been
reduced to where the wiring and installation is not expected to fail in
this inspection interval and any potential wear would be detected and
would be repaired or removed and replaced in accordance with
maintenance activities.
We disagree to withdraw the NPRM. The EWIS EZAP repetitive
inspection program is implemented by FAA operating rules (14 CFR
121.1111 or 14 CFR 129.111), which are applicable only to operators
that are required to comply with those operating rules. The FAA is
obligated to advise foreign airworthiness authorities of unsafe
conditions identified in products manufactured in the United States,
including Boeing airplanes, in accordance with bilateral airworthiness
agreements with countries around the world. The issuance of ADs is the
means by which the FAA satisfies this obligation. Even if the FAA
agreed that the actions required by 14 CFR 121.1111 and 14 CFR 129.111
adequately addressed the unsafe condition, the FAA would still issue
this AD to address airplanes that may
[[Page 25955]]
not be operated in accordance with those requirements. Additionally,
the FAA does not agree that the EWIS EZAP repetitive inspection program
has been demonstrated as sufficient to allow a determination that
chafing through the wire insulation of the unmodified (pre-AD)
configuration is not a foreseeable single failure. The FAA understands
that the EWIS EZAP repetitive inspection program interval for this area
was determined based on a later modified design, and that design has
additional Teflon sleeving. For these reasons, we have made no change
to this final rule in this regard.
Request for Clarification of Safety Evaluation Criteria
Boeing requested that we clarify the use of ``unacceptable
(failure) experience'' in the Discussion section of the NPRM and that
was used as a safety evaluation criterion under Special Federal
Aviation Regulation No. 88 (SFAR 88). The commenter requested better
definition of ``unacceptable (failure) experience'' or the addition of
detailed guidance that defines how to identify an ``unacceptable
(failure) experience.'' The commenter also indicated that Boeing
airplanes at the time of design approval are intended to meet all
applicable regulations including 14 CFR 25.601, which specifically
prohibits hazardous or unreliable features.
We agree that clarification is necessary. To provide standardized
policy for determining the need for mandatory action relative to the
finding from the fuel system safety review required by SFAR 88, the FAA
issued Memorandum 2003-112-15, SFAR 88--Mandatory Action Decision
Criteria, dated February 25, 2003. One of the criteria provided in the
policy memo is that, for any tank (either high or low flammability
exposure time), all failures identified in service, that result in
thermal or electrical energy dissipation into the fuel tank system,
which could create an ignition hazard, or that make fuel tank safety
protection devices inoperative (e.g., fuel pump canister, wire
sleeving, bonding lead), are considered unsafe conditions and must be
addressed by corrective action (i.e., AD). This criterion is
independent of any compliance showing or finding previously made as
part of a type certification program. The policy memo criteria are
mentioned in the Discussion section of each NPRM that resulted from an
SFAR 88 unsafe condition determination. Additionally, the NPRM
Discussion is not repeated in the final rule, so no change to this
final rule is necessary in this regard.
Request for Clarification of Credit for Actions Accomplished Previously
Boeing requested that we revise paragraph (l) of the proposed AD so
that it is clear that credit will be given for past work that has
already been accomplished on other Boeing Model 777 airplanes. No
justification was provided, however, the commenter stated that the NPRM
is adding the missing airplanes and it uses the latest service
information to reset the method of compliance.
We infer that the commenter is requesting clarification for taking
credit for actions required by paragraph (g)(l) of this AD using
earlier revisions of the service information. Paragraph (l)(1) of this
AD provides credit for actions accomplished before January 20, 2011
(the effective date of AD 2010-24-12, Amendment 39-16531 (75 FR 78588,
December 16, 2010) (``AD 2010-24-12'')), using service information
revisions earlier than Boeing Service Bulletin 777-57A0050, Revision 2,
dated May 14, 2009, required by paragraph (g)(1) of AD 2010-24-12.
Accomplishing the actions using Boeing Service Bulletin 777-57A0050,
Revision 3, dated February 18, 2014, has been approved as an
alternative method of compliance (AMOC) for paragraph (g)(l) of AD
2011-26-03, and AMOCs approved previously for AD 2011-26-03 are
approved as AMOCs for the corresponding provisions of this AD as
specified in paragraph (m)(4) of this AD. After the effective date of
this AD, only Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015 is allowed for compliance with paragraph (g)(l) of
this AD. Paragraphs (i) and (j) of this AD require actions for
airplanes not covered in paragraph (g)(l) of this AD and also require
additional actions for those airplanes that accomplished the actions
required by paragraph (g)(l) of this AD using service bulletin
revisions earlier than Boeing Service Bulletin 777-57A0050, Revision 4,
dated September 28, 2015. Therefore, no credit is provided for actions
required by paragraphs (i) and (j) of this AD using service bulletin
revisions earlier than Boeing Service Bulletin 777-57A0050, Revision 4,
dated September 28, 2015. We have not changed this AD in this regard.
Request To Simplify Compliance Implementation Time Frame
Boeing requested that we revise paragraphs (i), (j), and (k) of the
proposed AD to simplify the AD compliance implementation time frame.
The commenter stated that the NPRM sets the requirements to be
completed within 60 months of different revisions of different
documents with an exception specified in paragraph (k) of the proposed
AD, and that the proposed requirements were cumbersome and unclear. The
commenter did not provide any explanation of how the paragraphs should
be revised.
We agree that clarification is necessary. The NPRM proposed to
supersede AD 2011-26-03 and added new requirements in paragraphs (i)
and (j) of this AD. Paragraph (k) of this AD provides exceptions to the
service information. For the new requirements in this AD, the FAA has
determined that the compliance times are reasonable based on
consideration of the risk level associated with the unsafe condition
and the time necessary to perform the work. In addition, the compliance
times in paragraphs (i) and (j) of this AD do not refer to any service
documents (both paragraphs refer to Boeing Service Bulletin 777-
57A0050, Revision 4, dated September 28, 2015, as the appropriate
source of service information for accomplishing the actions in those
paragraphs). Therefore, we have determined that the requirements of
this AD are adequate and clear. We have not changed this AD in this
regard.
Clarification of Service Information Requirement
Under the ``Differences Between This Proposed AD and the Service
Information'' section of the NPRM, we noted that the corrections to
group applicability for ``WORK PACKAGE 21: More Work: Rear Spar Wire
Bundle Teflon Sleeve Installation,'' Figure 3, and Figure 100 of Boeing
Service Bulletin 777-57A0050, Revision 4, dated September 28, 2015,
were included in paragraphs (k)(1), (k)(2), and (k)(3) of the proposed
AD. Paragraph (k)(1) of this AD specifies that WORK PACKAGE 21 applies
to Groups 5 through 43 (including Configurations 1 and 2) to correct
the error in Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015, which only identifies Configuration 2 of Groups 5
through 43 as applicable. Paragraph (k)(1) of this AD, which is
referenced by paragraph (j) of this AD, is intended to clarify the
airplanes affected by the requirements specified in paragraph (j) of
this AD. To further clarify this aspect, we have revised paragraph (j)
of this AD to specifically reference Groups 5 through 43,
Configurations 1 and 2 airplanes.
We have also revised paragraph (m)(4) of this AD to accept AMOCs
approved previously for AD 2010-24-12 as
[[Page 25956]]
AMOCs for the corresponding provisions of this AD.
Clarification of Unsafe Condition
We have revised the Discussion section of this final rule and
paragraph (e) of this AD to clarify that we are issuing this AD to
address arcing inside the main and center fuel tanks in the event of a
fault current or lightning strike, which, in combination with flammable
fuel vapors, could result in a fuel tank explosion and consequent loss
of the airplane.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this AD 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
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015. The service information describes procedures for
installing Teflon sleeving under the clamps of certain wire bundles
routed along the fuel tank boundary structure, and cap sealing certain
penetrating fasteners of the main and center fuel tanks. The service
information also describes detailed inspections of certain wire bundle
clamps, certain Teflon sleeves, and certain fasteners; corrective
actions if necessary; and installation of Teflon sleeves under certain
wire bundle clamps. 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 182 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Install Teflon sleeving and cap Up to 358 work- $2,241 Up to $32,671...... Up to $5,946,122.
sealing (retained actions from hours x $85 per
AD 2011-26-03). hour = $30,430.
Detailed inspections and Up to 53 work- (\1\) Up to $4,505....... Up to $819,910.
installation of Teflon sleeves hours x $85 per
(new actions). hour = $4,505.
----------------------------------------------------------------------------------------------------------------
\1\ We have received no definitive data that would enable us to provide parts cost estimates for the
installation of Teflon sleeves (new action) specified in this AD.
We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this AD.
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.
Regulatory Findings
We have determined that 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
0
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 removing Airworthiness Directive (AD)
2011-26-03, Amendment 39-16893 (76 FR 78138, December 16, 2011), and
adding the following new AD:
2017-11-14 The Boeing Company: Amendment 39-18913; Docket No. FAA-
2016-8179; Directorate Identifier 2015-NM-201-AD.
(a) Effective Date
This AD is effective July 11, 2017.
(b) Affected ADs
This AD replaces AD 2011-26-03, Amendment 39-16893 (76 FR 78138,
December 16, 2011) (``AD 2011-26-03'').
(c) Applicability
This AD applies to The Boeing Company airplanes, certificated in
any category, as identified in the applicable service information
specified in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this
AD.
(1) For The Boeing Company Model 777-200, -200LR, -300, -300ER,
and 777F airplanes: Boeing Service Bulletin 777-57A0050, Revision 4,
dated September 28, 2015.
(2) For The Boeing Company Model 777-200 and -300 airplanes:
Boeing Alert Service Bulletin 777-57A0051, dated May 15, 2006.
(3) For The Boeing Company Model 777-200, -300, and -300ER
airplanes: Boeing Alert Service Bulletin 777-57A0057, Revision 1,
dated August 2, 2007.
(4) For The Boeing Company Model 777-200, -200LR, -300, and -
300ER airplanes:
[[Page 25957]]
Boeing Alert Service Bulletin 777-57A0059, dated October 30, 2008.
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by fuel system reviews conducted by the
manufacturer. We are issuing this AD to prevent arcing inside the
main and center fuel tanks in the event of a fault current or
lightning strike, which, in combination with flammable fuel vapors,
could result in a fuel tank explosion and consequent loss of the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Corrective Actions (Installing Teflon Sleeving, Cap
Sealing, One-Time Inspection), With Revised Service Information
This paragraph restates the requirements of paragraph (g) of AD
2011-26-03, with revised service information. Within 60 months after
January 20, 2011 (the effective date of AD 2010-24-12, Amendment 39-
16531 (75 FR 78588, December 16, 2010) (``AD 2010-24-12'')), do the
applicable actions specified in paragraph (g)(1), (g)(2), (g)(3), or
(g)(4) of this AD, except as required by paragraph (k)(2) of this
AD.
(1) For airplanes identified in Boeing Service Bulletin 777-
57A0050, Revision 2, dated May 14, 2009: Install Teflon sleeving
under the clamps of certain wire bundles routed along the fuel tank
boundary structure, and cap seal certain penetrating fasteners of
the fuel tanks, in accordance with the Accomplishment Instructions
of Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14,
2009; or Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015. As of the effective date of this AD, only Boeing
Service Bulletin 777-57A0050, Revision 4, dated September 28, 2015,
may be used to accomplish the actions required by this paragraph.
(2) For airplanes identified in Boeing Alert Service Bulletin
777-57A0051, dated May 15, 2006: Cap seal certain penetrating
fasteners of the fuel tanks, in accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin 777-57A0051, dated May
15, 2006.
(3) For airplanes identified in Boeing Alert Service Bulletin
777-57A0057, Revision 1, dated August 2, 2007: Do a general visual
inspection to determine if certain fasteners are cap sealed, and do
all applicable corrective actions, in accordance with the
Accomplishment Instructions of Boeing Alert Service Bulletin 777-
57A0057, Revision 1, dated August 2, 2007. Do all applicable
corrective actions before further flight.
(4) For Model 777-200, -300, and -300ER airplanes identified in
Boeing Alert Service Bulletin 777-57A0059, dated October 30, 2008:
Cap seal the fasteners in the center fuel tanks that were not sealed
during production, in accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin 777-57A0059, dated
October 30, 2008.
(h) Retained Cap Sealing the Fasteners, With No Changes
This paragraph restates the requirements of paragraph (i) of AD
2011-26-03, with no changes. For Model 777-200LR airplanes
identified in Boeing Alert Service Bulletin 777-57A0059, dated
October 30, 2008: Within 60 months after January 3, 2012 (the
effective date of AD 2011-26-03), cap seal the fasteners in the
center fuel tanks that were not sealed during production, in
accordance with the Accomplishment Instructions of Boeing Alert
Service Bulletin 777-57A0059, dated October 30, 2008.
(i) New Detailed Inspection and Corrective Actions
For Group 1, Configurations 2 through 4 airplanes; Groups 2
through 4, Configurations 3 through 5 airplanes; Groups 5 through
43, Configuration 1 airplanes; and Groups 44 and 45 airplanes; as
identified in Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015: Within 60 months after the effective date of
this AD, do the applicable actions specified in paragraphs (i)(1),
(i)(2), and (i)(3) of this AD, except as required by paragraph
(k)(2) of this AD.
(1) For Group 1, Configurations 2 through 4 airplanes; Groups 2
through 4, Configurations 3 through 5 airplanes; Groups 5 through
43, Configuration 1 airplanes; and Groups 44 and 45 airplanes; as
identified in Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015: Do a detailed inspection for installation of
Teflon sleeves under certain wire bundle clamps, as applicable; a
detailed inspection to determine the type of wire bundle clamp; and
all applicable corrective actions; in accordance with the
Accomplishment Instructions of Boeing Service Bulletin 777-57A0050,
Revision 4, dated September 28, 2015. Do all applicable corrective
actions before further flight.
(2) For Group 1, Configurations 2 through 4 airplanes; and
Groups 2 through 4, Configurations 3 through 5 airplanes; as
identified in Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015: Do a detailed inspection for correct
installation of certain Teflon sleeves, as applicable; and do all
applicable corrective actions; in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777-57A0050, Revision 4,
dated September 28, 2015. Do all applicable corrective actions
before further flight.
(3) For Group 1, Configurations 2 through 4 airplanes; and
Groups 2 through 4, Configurations 3 through 5 airplanes; as
identified in Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015: Do a detailed inspection for cap sealing of
certain fasteners, as applicable; and do all applicable corrective
actions; in accordance with the Accomplishment Instructions of
Boeing Service Bulletin 777-57A0050, Revision 4, dated September 28,
2015. Do all applicable corrective actions before further flight.
(j) New Installation of Teflon Sleeves
For Group 1, Configurations 2 through 5 airplanes; Groups 2
through 4, Configurations 3 through 6 airplanes; and Groups 5
through 43, Configurations 1 and 2 airplanes; as identified in
Boeing Service Bulletin 777-57A0050, Revision 4, dated September 28,
2015: Within 60 months after the effective date of this AD, install
Teflon sleeves under certain wire bundle clamps, as applicable, in
accordance with the Accomplishment Instructions of Boeing Service
Bulletin 777-57A0050, Revision 4, dated September 28, 2015, except
as required by paragraphs (k)(1), (k)(2), and (k)(3) of this AD.
(k) Exceptions to the Service Information
(1) Where ``WORK PACKAGE 21: More Work: Rear Spar Wire Bundle
Teflon sleeve Installation'' of Boeing Service Bulletin 777-57A0050,
Revision 4, dated September 28, 2015, specifies ``Groups 5 through
43, Configuration 2,'' for this AD, ``WORK PACKAGE 21: More Work:
Rear Spar Wire Bundle Teflon sleeve Installation'' of Boeing Service
Bulletin 777-57A0050, Revision 4, dated September 28, 2015, applies
to all configurations of Groups 5 through 43 airplanes.
(2) Where Figure 3 of Boeing Service Bulletin 777-57A0050,
Revision 4, dated September 28, 2015, specifies ``Groups 1 through
7, and 9 through 43,'' for this AD, Figure 3 of Boeing Service
Bulletin 777-57A0050, Revision 4, dated September 28, 2015, applies
to Groups 1 through 43 airplanes.
(3) Where Figure 100 of Boeing Service Bulletin 777-57A0050,
Revision 4, dated September 28, 2015, specifies ``Groups 5 through
43, Configuration 2,'' for this AD, Figure 100 of Boeing Service
Bulletin 777-57A0050, Revision 4, dated September 28, 2015, applies
to all configurations of Groups 5 through 43 airplanes.
(l) Credit for Previous Actions
(1) This paragraph provides credit for the actions specified in
paragraph (g)(1) of this AD, if those actions were performed before
January 20, 2011 (the effective date of AD 2010-24-12), using Boeing
Alert Service Bulletin 777-57A0050, dated January 26, 2006; or
Boeing Alert Service Bulletin 777-57A0050, Revision 1, dated August
2, 2007; provided that the applicable additional work specified in
Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009,
is done within the compliance time specified in paragraph (g) of
this AD. The additional work must be done in accordance with Boeing
Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009.
(2) This paragraph provides credit for the actions specified in
paragraph (g)(3) of this AD, if those actions were performed before
January 20, 2011 (the effective date of AD 2010-24-12), using Boeing
Alert Service Bulletin 777-57A0057, dated August 7, 2006.
(m) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle Aircraft Certification Office (ACO),
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 ACO, send it to the
[[Page 25958]]
attention of the person identified in paragraph (n)(1) 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, 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) AMOCs approved previously for AD 2011-26-03 and AD 2010-24-
12 are approved as AMOCs for the corresponding provisions of this
AD.
(n) Related Information
(1) For more information about this AD, contact Tak Kobayashi,
Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO,
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6499;
fax: 425-917-6590; email: takahisa.kobayashi@faa.gov.
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (o)(5) and (o)(6) of this AD.
(o) 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.
(3) The following service information was approved for IBR on
July 11, 2017.
(i) Boeing Service Bulletin 777-57A0050, Revision 4, dated
September 28, 2015.
(ii) Reserved.
(4) The following service information was approved for IBR on
January 20, 2011 (75 FR 78588, December 16, 2010).
(i) Boeing Alert Service Bulletin 777-57A0051, dated May 15,
2006.
(ii) Boeing Alert Service Bulletin 777-57A0057, Revision 1,
dated August 2, 2007.
(iii) Boeing Alert Service Bulletin 777-57A0059, dated October
30, 2008.
(iv) Boeing Service Bulletin 777-57A0050, Revision 2, dated May
14, 2009.
(5) 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.
(6) You may view this service information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For
information on the availability of this material at the FAA, call
425-227-1221.
(7) 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 Renton, Washington, on May 23, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-11291 Filed 6-5-17; 8:45 am]
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