Airworthiness Directives; The Boeing Company Airplanes, 23509-23512 [2017-10257]
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Federal Register / Vol. 82, No. 98 / Tuesday, May 23, 2017 / Rules and Regulations
Accomplishment Instructions of Boeing Alert
Service Bulletin 737–53A1353, dated July 21,
2016.
(1) If no crack is found: Repeat the
inspections thereafter at the applicable times
specified in paragraph 1.E., ‘‘Compliance,’’ of
Boeing Alert Service Bulletin 737–53A1353,
dated July 21, 2016.
(2) If any crack is found: Do the actions
specified in paragraphs (g)(2)(i) and (g)(2)(ii)
of this AD.
(i) Repair the crack before further flight
using a method approved in accordance with
the procedures specified in paragraph (i) of
this AD. Although Boeing Alert Service
Bulletin 737–53A1353, dated July 21, 2016,
specifies to contact Boeing for repair
instructions, and specifies that action as
‘‘RC’’ (Required for Compliance), this AD
requires repair as specified in this paragraph.
(ii) On areas that are not repaired, repeat
the inspections thereafter at the applicable
times specified in paragraph 1.E.,
‘‘Compliance,’’ of Boeing Alert Service
Bulletin 737–53A1353, dated July 21, 2016.
jstallworth on DSK7TPTVN1PROD with RULES
(h) Service Information Exception
Where paragraph 1.E., ‘‘Compliance,’’ of
Boeing Alert Service Bulletin 737–53A1353,
dated July 21, 2016, specifies a compliance
time ‘‘after the Original Issue date of this
Service Bulletin,’’ this AD requires
compliance within the specified compliance
time after the effective date of this AD.
(i) 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
attention of the person identified in
paragraph (j) 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) Except as required by paragraph (g)(2)(i)
of this AD: For service information that
contains steps that are labeled as RC, the
provisions of paragraphs (i)(4)(i) and (i)(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. If a step or substep is
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labeled ‘‘RC Exempt,’’ then the RC
requirement is removed from that step or
substep. 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.
DEPARTMENT OF TRANSPORTATION
(j) Related Information
AGENCY:
For more information about this AD,
contact Alan Pohl, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA, Seattle
ACO, 1601 Lind Avenue SW., Renton, WA
98057–3356; phone: 425–917–6450; fax: 425–
917–6590; email: alan.pohl@faa.gov.
SUMMARY:
(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 the AD specifies otherwise.
(i) Boeing Alert Service Bulletin 737–
53A1353, dated July 21, 2016.
(ii) Reserved.
(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;
telephone: 562–797–1717; Internet: https://
www.myboeingfleet.com.
(4) 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.
(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 Renton, Washington, on May 10,
2017.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2017–10263 Filed 5–22–17; 8:45 am]
BILLING CODE 4910–13–P
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Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–9394; Directorate
Identifier 2016–NM–162–AD; Amendment
39–18872; AD 2017–09–10]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
We are adopting a new
airworthiness directive (AD) for all The
Boeing Company Model 747–400, 747–
400D, and 747–400F airplanes. This AD
was prompted by a report of a crack in
the left wing front spar web, found
following a fuel leak. This AD requires
repetitive inspections for cracking of the
front spar web, and repairs if necessary.
We are issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective June 27,
2017.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of June 27, 2017.
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–
9394.
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–
9394; 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
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Federal Register / Vol. 82, No. 98 / Tuesday, May 23, 2017 / Rules and Regulations
Operations, M–30, West Building
Ground Floor, Room W12–140, 1200
New Jersey Avenue SE., Washington,
DC 20590.
FOR FURTHER INFORMATION CONTACT: Bill
Ashforth, Aerospace Engineer, Airframe
Branch, ANM–120S, FAA, Seattle
Aircraft Certification Office (ACO), 1601
Lind Avenue SW., Renton, WA 98057–
3356; phone: 425–917–6432; fax: 425–
917–6590; email: bill.ashforth@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to all The Boeing Company Model
747–400, 747–400D, and 747–400F
airplanes. The NPRM published in the
Federal Register on December 2, 2016
(81 FR 86977) (‘‘the NPRM’’). The
NPRM was prompted by a report
indicating that a fuel leak in one
airplane led to the discovery of a 13.4inch crack in the left wing front spar
web inboard of pylon number 2 between
front spar station inboard (FSSI) 655.75
and FSSI 660. The NPRM proposed to
require repetitive detailed, ultrasonic,
and high frequency eddy current
inspections for cracking of the front spar
web between FSSI 628 and FSSI 713,
and repairs if necessary. We are issuing
this AD to detect and correct cracking in
the front spar web, which could lead to
fuel leaks and a consequent fire.
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.
Support for the NPRM
Boeing and commenter Melanie Smith
stated that they support the NPRM.
Request To Update the Labor Costs
British Airways (BA), Cargolux
Airlines (CLX), and KLM Royal Dutch
Airlines (KLM) all stated that the actual
work-hours required to do the mandated
inspections are higher than the estimate
listed in the NPRM. They estimated the
inspections actually take between 137
and 159 work-hours, not the 55 workhours stated in the NPRM.
We agree that the estimated workhours should be increased. When
issuing a service bulletin, Boeing
estimates work-hours under expected
conditions. As operators implement the
service bulletin, they may find the
actual work-hours are higher or lower
than estimated. We have updated the
Costs of Compliance section of this AD
to reflect a conservative estimate of 159
work-hours per inspection cycle.
scheduled maintenance for most
affected operators. Boeing is aware of
the discrepancy in work-hours and is
developing a request for a global
alternative method of compliance
(AMOC) to provide operators an
alternative for both the areas of
inspection and the compliance times. In
addition, operators have the option of
proposing an adjustment to the
compliance times, supported by
appropriate engineering analyses, in
accordance with the provisions of
paragraph (j) of this AD. We have not
changed this final rule regarding this
issue.
Request To Change the Initial and
Repetitive Compliance Times
BA, CLX, and KLM all requested that
we change the initial and/or repetitive
compliance times to align with
scheduled maintenance checks. BA
proposed to do time-limited alternative
inspections in the most critical web
locations and to defer the majority of the
web inspections to coincide with longer
planned maintenance checks. CLX
requested that we change the initial
compliance time from 6 months to 24
months, and that we change the
repetitive inspection interval from 1,200
flight cycles to 2,000 flight cycles. KLM
requested that we extend the repetitive
inspection intervals for Model 747
freighters from 1,200 flight cycles to
1,800 flight cycles. Each of the
commenters noted that the actual workhours are higher than estimated in the
NPRM, and the inspections would
require additional downtime and costs
if not done at the same time as regularly
scheduled maintenance. None of the
commenters provided engineering
analyses to support their proposed
extended compliance times.
We disagree with the requests. In
developing an appropriate compliance
time for this action, we considered the
urgency associated with the subject
unsafe condition and the practical
aspect of accomplishing the required
modification within a period of time
that corresponds to the normal
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this AD
as proposed, except for 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 Alert Service
Bulletin 747–57A2357, dated September
12, 2016. The service information
describes procedures for repetitive
detailed, ultrasonic, and high frequency
eddy current inspections, and repairs of
cracking of the front spar web between
FSSI 628 and FSSI 713. 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 137
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
ESTIMATED COSTS
Labor cost
Inspections .........
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Action
159 work-hours × $85 per hour =
$13,515 per inspection cycle.
We have received no definitive data
that would enable us to provide cost
estimates for the on-condition actions
specified in this AD.
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Parts cost
$0
$13,515 per inspection cycle ........
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
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Cost on U.S.
operators
Cost per product
Fmt 4700
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$1,851,555 per inspection cycle.
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
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Federal Register / Vol. 82, No. 98 / Tuesday, May 23, 2017 / Rules and Regulations
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
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):
jstallworth on DSK7TPTVN1PROD with RULES
■
2017–09–10 The Boeing Company:
Amendment 39–18872; Docket No.
FAA–2016–9394; Directorate Identifier
2016–NM–162–AD.
(a) Effective Date
This AD is effective June 27, 2017.
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(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing
Company Model 747–400, 747–400D, and
747–400F airplanes, certificated in any
category.
(d) Subject
Air Transport Association (ATA) of
America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by a report of a
13.4-inch crack in the left wing front spar
web inboard of pylon number 2 between
front spar station inboard (FSSI) 655.75 and
FSSI 660, found following a fuel leak. We are
issuing this AD to detect and correct cracking
in the front spar web, which could lead to
fuel leaks and a consequent fire.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Repetitive Detailed, Ultrasonic, and High
Frequency Eddy Current Inspections
At the applicable time specified in
paragraph 1.E., ‘‘Compliance,’’ of Boeing
Alert Service Bulletin 747–57A2357, dated
September 12, 2016, except as provided by
paragraph (i) of this AD, do detailed,
ultrasonic, and high frequency eddy current
inspections for any cracking in the front spar
web, in accordance with the
Accomplishment Instructions of Boeing Alert
Service Bulletin 747–57A2357, dated
September 12, 2016. Repeat the inspections
thereafter at the applicable time specified in
paragraph 1.E., ‘‘Compliance,’’ of Boeing
Alert Service Bulletin 747–57A2357, dated
September 12, 2016.
(h) Repair of Any Cracking
If any crack is found during any inspection
required by paragraph (g) of this AD, before
further flight, repair using a method
approved in accordance with the procedures
specified in paragraph (j) of this AD.
Thereafter, repeat the inspections specified
in paragraph (g) of this AD at all unrepaired
areas.
(i) Service Information Exceptions
Where paragraph 1.E., ‘‘Compliance,’’ of
Boeing Alert Service Bulletin 747–57A2357,
dated September 12, 2016, specifies a
compliance time ‘‘after the original date of
this service bulletin,’’ this AD requires
compliance within the specified compliance
time after the effective date of this AD.
(j) 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
attention of the person identified in
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paragraph (k) 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) Except as required by paragraph (i) of
this AD: 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. If a step or substep is
labeled ‘‘RC Exempt,’’ then the RC
requirement is removed from that step or
substep. 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 Bill Ashforth, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA, Seattle
Aircraft Certification Office (ACO), 1601 Lind
Avenue SW., Renton, WA 98057–3356;
phone: 425–917–6432; fax: 425–917–6590;
email: bill.ashforth@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 Alert Service Bulletin 747–
57A2357, dated September 12, 2016.
(ii) Reserved.
(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 Airplane Directorate,
1601 Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
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Federal Register / Vol. 82, No. 98 / Tuesday, May 23, 2017 / Rules and Regulations
(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 Renton, Washington, on April 27,
2017.
Paul Bernado,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–10257 Filed 5–22–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–9439; Directorate
Identifier 2016–NM–170–AD; Amendment
39–18870; AD 2017–09–08]
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
The Boeing Company Model 787–8
airplanes. This AD was prompted by a
report indicating that during an airplane
inspection in production, the variable
frequency starter generator (VFSG)
power feeder cables were found to
contain terminal lugs incorrectly
installed common to terminal blocks
located in the wing front spar. This AD
requires a general visual inspection of
the wings, section 16, terminal lugs at
the terminal power block of the VFSG
power feeder cable for correct
installation and applicable corrective
actions. We are issuing this AD to
address the unsafe condition on these
products.
SUMMARY:
This AD is effective June 27,
2017.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of June 27, 2017.
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
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DATES:
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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–
9439.
short and the possible introduction of
energy into the main fuel tanks.
Examining the AD Docket
Support for the NPRM
The Air Line Pilots Association,
International, expressed support for the
NPRM.
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
9439; 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:
Brendan Shanley, Aerospace Engineer,
Systems and Equipment Branch, ANM–
130S, FAA, Seattle Aircraft Certification
Office (ACO), 1601 Lind Avenue SW.,
Renton, WA 98057–3356; phone: 425–
917–6492; fax: 425–917–6590; email:
brendan.shanley@faa.gov.
SUPPLEMENTARY INFORMATION:
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 787–8 airplanes. The NPRM
published in the Federal Register on
December 16, 2016 (81 FR 91066) (‘‘the
NPRM’’). The NPRM was prompted by
a report indicating that during an
airplane inspection in production, the
VFSG power feeder cables were found
to contain terminal lugs incorrectly
installed common to terminal blocks
located in the wing front spar. The
NPRM proposed to require a general
visual inspection of the wings, section
16, terminal lugs at the terminal power
block of the VFSG power feeder cable
for correct installation and applicable
corrective actions. We are issuing this
AD to detect and correct incorrectly
installed terminal lugs which may
contact adjacent structure and be
damaged. Damaged terminal lugs could
cause the potential loss of several
functions essential for safe flight or
electrical arcing in a flammable leakage
zone, which could result in an electrical
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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 Revise Compliance Time
Boeing and All Nippon Airways
(ANA) requested that we revise the
compliance time specified in paragraph
(g) of the proposed AD. Boeing stated
that paragraph (g) of the proposed AD
refers to paragraph 1.E., ‘‘Compliance,’’
of Boeing Alert Service Bulletin B787–
81205–SB240027–00, Issue 002, dated
September 6, 2016 (‘‘ASB B787–81205–
SB240027–00, Issue 002’’) and
requested that we instead refer to
paragraph 5., ‘‘Compliance,’’ of ASB
B787–81205–SB240027–00, Issue 002’’
because that is the correct location for
the applicable times. ANA stated that
paragraph 1.E., ‘‘Compliance,’’ doesn’t
exist in ASB B787–81205–SB240027–
00, Issue 002, and recommended a
compliance time of ‘‘within 12 months
after the effective date of this AD.’’
Boeing also recommended that the
compliance time be tied to the effective
date of the AD to allow operators a valid
and acceptable time frame to perform
the actions specified in ASB B787–
81205–SB240027–00, Issue 002.
Additionally, the commenters stated
that the compliance time ‘‘within 12
months after the original issue date of
this service bulletin,’’ as specified in
ASB B787–81205–SB240027–00, Issue
002, would put operators out of
compliance upon AD issuance.
We agree with the commenters. We
have revised paragraph (g) of this AD to
specify ‘‘Within 12 months after the
effective date of this AD’’ and have
removed reference to paragraph 1.E.,
‘‘Compliance,’’ of ASB B787–81205–
SB240027–00, Issue 002. We have
determined that extending the
compliance time from what was
proposed will provide an acceptable
level of safety.
Request To Clarify the Unsafe
Condition Statement
Boeing requested that we revise the
‘‘Discussion’’ section of the NPRM and
paragraph (e) of the proposed AD to
remove information about the potential
to introduce energy into the main fuel
tanks and include information about
E:\FR\FM\23MYR1.SGM
23MYR1
Agencies
[Federal Register Volume 82, Number 98 (Tuesday, May 23, 2017)]
[Rules and Regulations]
[Pages 23509-23512]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-10257]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-9394; Directorate Identifier 2016-NM-162-AD;
Amendment 39-18872; AD 2017-09-10]
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 all The
Boeing Company Model 747-400, 747-400D, and 747-400F airplanes. This AD
was prompted by a report of a crack in the left wing front spar web,
found following a fuel leak. This AD requires repetitive inspections
for cracking of the front spar web, and repairs if necessary. We are
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective June 27, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of June 27,
2017.
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-
9394.
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-
9394; 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
[[Page 23510]]
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Bill Ashforth, Aerospace Engineer,
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6432; fax: 425-917-6590; email: bill.ashforth@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to all The Boeing Company
Model 747-400, 747-400D, and 747-400F airplanes. The NPRM published in
the Federal Register on December 2, 2016 (81 FR 86977) (``the NPRM'').
The NPRM was prompted by a report indicating that a fuel leak in one
airplane led to the discovery of a 13.4-inch crack in the left wing
front spar web inboard of pylon number 2 between front spar station
inboard (FSSI) 655.75 and FSSI 660. The NPRM proposed to require
repetitive detailed, ultrasonic, and high frequency eddy current
inspections for cracking of the front spar web between FSSI 628 and
FSSI 713, and repairs if necessary. We are issuing this AD to detect
and correct cracking in the front spar web, which could lead to fuel
leaks and a consequent fire.
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.
Support for the NPRM
Boeing and commenter Melanie Smith stated that they support the
NPRM.
Request To Update the Labor Costs
British Airways (BA), Cargolux Airlines (CLX), and KLM Royal Dutch
Airlines (KLM) all stated that the actual work-hours required to do the
mandated inspections are higher than the estimate listed in the NPRM.
They estimated the inspections actually take between 137 and 159 work-
hours, not the 55 work-hours stated in the NPRM.
We agree that the estimated work-hours should be increased. When
issuing a service bulletin, Boeing estimates work-hours under expected
conditions. As operators implement the service bulletin, they may find
the actual work-hours are higher or lower than estimated. We have
updated the Costs of Compliance section of this AD to reflect a
conservative estimate of 159 work-hours per inspection cycle.
Request To Change the Initial and Repetitive Compliance Times
BA, CLX, and KLM all requested that we change the initial and/or
repetitive compliance times to align with scheduled maintenance checks.
BA proposed to do time-limited alternative inspections in the most
critical web locations and to defer the majority of the web inspections
to coincide with longer planned maintenance checks. CLX requested that
we change the initial compliance time from 6 months to 24 months, and
that we change the repetitive inspection interval from 1,200 flight
cycles to 2,000 flight cycles. KLM requested that we extend the
repetitive inspection intervals for Model 747 freighters from 1,200
flight cycles to 1,800 flight cycles. Each of the commenters noted that
the actual work-hours are higher than estimated in the NPRM, and the
inspections would require additional downtime and costs if not done at
the same time as regularly scheduled maintenance. None of the
commenters provided engineering analyses to support their proposed
extended compliance times.
We disagree with the requests. In developing an appropriate
compliance time for this action, we considered the urgency associated
with the subject unsafe condition and the practical aspect of
accomplishing the required modification within a period of time that
corresponds to the normal scheduled maintenance for most affected
operators. Boeing is aware of the discrepancy in work-hours and is
developing a request for a global alternative method of compliance
(AMOC) to provide operators an alternative for both the areas of
inspection and the compliance times. In addition, operators have the
option of proposing an adjustment to the compliance times, supported by
appropriate engineering analyses, in accordance with the provisions of
paragraph (j) of this AD. We have not changed this final rule regarding
this issue.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this AD as proposed, except for 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 Alert Service Bulletin 747-57A2357, dated
September 12, 2016. The service information describes procedures for
repetitive detailed, ultrasonic, and high frequency eddy current
inspections, and repairs of cracking of the front spar web between FSSI
628 and FSSI 713. 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 137 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Inspections...................... 159 work-hours x $0 $13,515 per $1,851,555 per
$85 per hour = inspection cycle. inspection cycle.
$13,515 per
inspection cycle.
----------------------------------------------------------------------------------------------------------------
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.
[[Page 23511]]
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
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):
2017-09-10 The Boeing Company: Amendment 39-18872; Docket No. FAA-
2016-9394; Directorate Identifier 2016-NM-162-AD.
(a) Effective Date
This AD is effective June 27, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company Model 747-400, 747-
400D, and 747-400F airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by a report of a 13.4-inch crack in the
left wing front spar web inboard of pylon number 2 between front
spar station inboard (FSSI) 655.75 and FSSI 660, found following a
fuel leak. We are issuing this AD to detect and correct cracking in
the front spar web, which could lead to fuel leaks and a consequent
fire.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Repetitive Detailed, Ultrasonic, and High Frequency Eddy Current
Inspections
At the applicable time specified in paragraph 1.E.,
``Compliance,'' of Boeing Alert Service Bulletin 747-57A2357, dated
September 12, 2016, except as provided by paragraph (i) of this AD,
do detailed, ultrasonic, and high frequency eddy current inspections
for any cracking in the front spar web, in accordance with the
Accomplishment Instructions of Boeing Alert Service Bulletin 747-
57A2357, dated September 12, 2016. Repeat the inspections thereafter
at the applicable time specified in paragraph 1.E., ``Compliance,''
of Boeing Alert Service Bulletin 747-57A2357, dated September 12,
2016.
(h) Repair of Any Cracking
If any crack is found during any inspection required by
paragraph (g) of this AD, before further flight, repair using a
method approved in accordance with the procedures specified in
paragraph (j) of this AD. Thereafter, repeat the inspections
specified in paragraph (g) of this AD at all unrepaired areas.
(i) Service Information Exceptions
Where paragraph 1.E., ``Compliance,'' of Boeing Alert Service
Bulletin 747-57A2357, dated September 12, 2016, specifies a
compliance time ``after the original date of this service
bulletin,'' this AD requires compliance within the specified
compliance time after the effective date of this AD.
(j) 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
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, 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) Except as required by paragraph (i) of this AD: 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. If a step or substep is labeled ``RC Exempt,'' then the
RC requirement is removed from that step or substep. 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 Bill Ashforth,
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft
Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6432; fax: 425-917-6590; email:
bill.ashforth@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 Alert Service Bulletin 747-57A2357, dated September
12, 2016.
(ii) Reserved.
(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
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For
information on the availability of this material at the FAA, call
425-227-1221.
[[Page 23512]]
(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 Renton, Washington, on April 27, 2017.
Paul Bernado,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-10257 Filed 5-22-17; 8:45 am]
BILLING CODE 4910-13-P