Airworthiness Directives; The Boeing Company Airplanes, 8776-8779 [2020-03083]
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Federal Register / Vol. 85, No. 32 / Tuesday, February 18, 2020 / Proposed Rules
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(2) Where Boeing Alert Service Bulletin
757–53A0108, Revision 1, dated July 17,
2019, uses the phrase ‘‘the original issue date
of this service bulletin,’’ this AD requires
using ‘‘May 3, 2018 (the effective date of AD
2018–06–07),’’ except where Alert Service
Bulletin 757–53A0108, Revision 1, dated July
17, 2019, uses the phrase ‘‘the original issue
date of this service bulletin’’ in a note or flag
note.
(3) Where Boeing Alert Service Bulletin
757–53A0108, Revision 1, dated July 17,
2019, uses the phrase ‘‘the revision 1 date of
this service bulletin,’’ this AD requires using
‘‘the effective date of this AD.’’
(4) Where Aviation Partners Boeing (APB)
Alert Service Bulletin AP757–53–001,
Revision 2, dated October 22, 2019, specifies
contacting Boeing for repair instructions or
for alternative inspections: This AD requires
doing the repair, or doing the alternative
inspections and applicable on-condition
actions using a method approved in
accordance with the procedures specified in
paragraph (i) of this AD.
(5) Where Aviation Partners Boeing (APB)
Alert Service Bulletin AP757–53–001,
Revision 2, dated October 22, 2019, uses the
phrase ‘‘the revision 1 issue date of this
service bulletin,’’ this AD requires using
‘‘May 3, 2018 (the effective date of AD 2018–
06–07),’’ except where Aviation Partners
Boeing (APB) Alert Service Bulletin AP757–
53–001, Revision 2, dated October 22, 2019,
uses the phrase ‘‘the revision 1 issue date of
this service bulletin’’ in a note or flag note.
(6) Where Aviation Partners Boeing (APB)
Alert Service Bulletin AP757–53–001,
Revision 2, dated October 22, 2019, uses the
phrase ‘‘the revision 2 issue date of this
service bulletin,’’ this AD requires using ‘‘the
effective date of this AD.’’
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Los Angeles ACO Branch,
FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or local Flight Standards
District Office, as appropriate. If sending
information directly to the manager of the
certification office, send it to the attention of
the person identified in paragraph (j)(1) of
this AD. Information may be emailed to: 9ANM-LAACO-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 Company
Organization Designation Authorization
(ODA) that has been authorized by the
Manager, Los Angeles ACO Branch, FAA, to
make those findings. To be approved, the
repair method, modification deviation, or
alteration deviation must meet the
certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) AMOCs approved previously for AD
2018–06–07 are not approved as AMOCs for
the corresponding provisions of this AD.
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(5) Except as specified by paragraph (h) of
this AD: For service information that
contains steps that are labeled as Required
for Compliance (RC), the provisions of
paragraphs (i)(5)(i) and (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.
(j) Related Information
(1) For more information about this AD,
contact Peter Jarzomb, Aerospace Engineer,
Airframe Section, FAA, Los Angeles ACO
Branch, 3960 Paramount Boulevard,
Lakewood, CA 90712–4137; phone: 562–627–
5234; fax: 562–627–5210; email:
peter.jarzomb@faa.gov.
(2) For Aviation Partners Boeing service
information identified in this AD, contact
Aviation Partners Boeing, 2811 S 102nd
Street, Suite 200, Seattle, WA 98168; phone:
206–830–7699; internet: https://
www.aviationpartnersboeing.com.
(3) For Boeing 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; phone: 562–797–
1717; internet: https://www.myboeing
fleet.com.
(4) You may view this referenced service
information at the FAA, Transport Standards
Branch, 2200 South 216th St., Des Moines,
WA. For information on the availability of
this material at the FAA, call 206–231–3195.
Issued on February 11, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives,
Compliance & Airworthiness Division,
Aircraft Certification Service.
[FR Doc. 2020–03084 Filed 2–14–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2020–0097; Product
Identifier 2019–NM–208–AD]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
AGENCY:
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Notice of proposed rulemaking
(NPRM).
ACTION:
The FAA proposes to adopt a
new airworthiness directive (AD) for all
The Boeing Company Model 737–300,
–400, and –500 series airplanes. This
proposed AD was prompted by a report
that a crack indication consistent with
fatigue cracking was found on the left
nacelle support overwing fitting flange
fastener hole during teardown of a
Model 737–300 series airplane. This
proposed AD would require a general
visual inspection of the strut to wing
diagonal brace at a certain location for
cracking. For certain airplanes, this
proposed AD would also require an
ultrasonic inspection of certain fasteners
of the nacelle support overwing fitting
at a certain location for cracking. For
certain other airplanes, this proposed
AD would also require a magnetic check
of the nacelle support overwing fitting
at a certain location to determine the
material composition. This proposed
AD would also require applicable oncondition actions. The FAA is
proposing this AD to address the unsafe
condition on these products.
SUMMARY:
The FAA must receive comments
on this proposed AD by April 3, 2020.
DATES:
You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, 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 Standards Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
It is also available on the internet at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0097.
ADDRESSES:
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Federal Register / Vol. 85, No. 32 / Tuesday, February 18, 2020 / Proposed Rules
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–2020–
0097; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
The AD docket contains this NPRM, the
regulatory evaluation, any comments
received, and other information. The
street address for Docket Operations is
listed above. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT:
Wayne Ha, Aerospace Engineer,
Airframe Section, FAA, Los Angeles
ACO Branch, 3960 Paramount
Boulevard, Lakewood, CA 90712–4137;
phone: 562–627–5238; fax: 562–627–
5210; email: wayne.ha@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under the ADDRESSES section. Include
‘‘Docket No. FAA–2020–0097; Product
Identifier 2019–NM–208–AD’’ at the
beginning of your comments. The FAA
specifically invites comments on the
overall regulatory, economic,
environmental, and energy aspects of
this NPRM. The FAA will consider all
comments received by the closing date
and may amend this NPRM because of
those comments.
The FAA will post all comments,
without change, to https://
www.regulations.gov, including any
personal information you provide. The
FAA will also post a report
summarizing each substantive verbal
contact the agency receives about this
proposed AD.
Discussion
The FAA has received a report
indicating that a crack indication
consistent with fatigue cracking was
found on the left nacelle support
overwing fitting flange fastener hole
during teardown of a Model 737–300
series airplane. Further analysis
determined the root cause of the crack
is stress at the first two forward
fasteners of the nacelle support
overwing fitting being higher than
anticipated. Existing maintenance
planning document (MPD) inspections
do not provide opportunities to detect a
failed nacelle support overwing fitting
at wing buttock line (WBL) 191. The
crack finding occurred at 67,695 total
flight cycles and 80,269 total flight
hours. This condition, if not addressed,
could result in an undetected crack in
the nacelle support overwing fittings or
strut to wing diagonal brace, which
could result in the inability of the
structure to carry limit load and could
adversely affect the structural integrity
of the airplane.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing Alert
Requirements Bulletin 737–57A1345
RB, dated December 17, 2019. This
service information describes
procedures for a magnetic check to
determine material composition of the
nacelle support overwing fitting at WBL
191; ultrasonic inspections of the
nacelle support overwing fitting at WBL
191 for cracking; general visual
inspections of the strut to wing diagonal
brace at nacelle station (STA) 278 for
cracking; and applicable on-condition
actions. On-condition actions include
repetitive ultrasonic inspections of the
nacelle support overwing fitting at WBL
191 for cracking, repetitive general
visual inspections of the strut to wing
diagonal brace at nacelle STA 278 for
cracking, and repair. 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.
FAA’s Determination
The FAA is proposing this AD
because the FAA evaluated all the
8777
relevant information and determined
the unsafe condition described
previously is likely to exist or develop
in other products of the same type
design.
Proposed AD Requirements
This proposed AD would require
accomplishment of the actions
identified in Boeing Alert Requirements
Bulletin 737–57A1345 RB, dated
December 17, 2019, described
previously, except for any differences
identified as exceptions in the
regulatory text of this proposed AD.
For information on the procedures
and compliance times, see this service
information at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0097.
Explanation of Requirements Bulletin
The FAA worked in conjunction with
industry, under the Airworthiness
Directive Implementation Aviation
Rulemaking Committee (AD ARC), to
enhance the AD system. One
enhancement is a process for annotating
which steps in the service information
are ‘‘required for compliance’’ (RC) with
an AD. Boeing has implemented this RC
concept into Boeing service bulletins.
In an effort to further improve the
quality of ADs and AD-related Boeing
service information, a joint process
improvement initiative was worked
between the FAA and Boeing. The
initiative resulted in the development of
a new process in which the service
information more clearly identifies the
actions needed to address the unsafe
condition in the ‘‘Accomplishment
Instructions.’’ The new process results
in a Boeing Requirements Bulletin,
which contains only the actions needed
to address the unsafe condition (i.e.,
only the RC actions).
Costs of Compliance
The FAA estimates that this proposed
AD affects 158 airplanes of U.S. registry.
The FAA estimates the following costs
to comply with this proposed AD:
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ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
Magnetic Check ......................
Ultrasonic Inspection ..............
General Visual Inspection ......
1 work-hour × $85 per hour = $85 .........................................
5 work-hours × $85 per hour = $425 .....................................
1 work-hour × $85 per hour = $85 .........................................
The FAA estimates the following
costs to do any necessary on-condition
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inspections that would be required. The
FAA has no way of determining the
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Cost per
product
Parts cost
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$0
0
0
$85
425
85
Cost on U.S.
operators
$13,430
67,150
13,430
number of aircraft that might need these
on-condition inspections:
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Federal Register / Vol. 85, No. 32 / Tuesday, February 18, 2020 / Proposed Rules
ESTIMATED COSTS OF ON-CONDITION INSPECTIONS
Action
Labor cost
Ultrasonic Inspections ............
5 work-hours × $85 per hour
= $425 per inspection cycle.
1 work-hour × $85 per hour =
$85 per inspection cycle.
General Visual Inspections ....
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.
The FAA is 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.
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Regulatory Findings
The FAA determined that this
proposed AD would not have federalism
implications under Executive Order
13132. This proposed AD would 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 this proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Will not affect intrastate aviation
in Alaska, and
(3) 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.
17:13 Feb 14, 2020
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Cost per product
Cost on U.S. operators
$0
$425 per inspection cycle ......
$67,150 per inspection cycle.
0
$85 per inspection cycle ........
$13,430 per inspection cycle.
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
The FAA has received no definitive
data that would enable us to provide
cost estimates for the on-condition
repairs specified in this proposed AD.
VerDate Sep<11>2014
Parts cost
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):
■
The Boeing Company: Docket No. FAA–
2020–0097; Product Identifier 2019–
NM–208–AD.
(a) Comments Due Date
The FAA must receive comments by April
3, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing
Company Model 737–300, –400, and –500
series 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 that a
crack indication consistent with fatigue
cracking was found on the left nacelle
support overwing fitting flange fastener hole
during teardown of a Model 737–300 series
airplane. The FAA is issuing this AD to
address the potential for undetected cracks in
the nacelle support overwing fittings or strut
to wing diagonal brace, which could result in
the inability of the structure to carry limit
load and could adversely affect the structural
integrity of the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
Except as specified by paragraph (h) of this
AD: At the applicable times specified in the
‘‘Compliance’’ paragraph of Boeing Alert
Requirements Bulletin 737–57A1345 RB,
dated December 17, 2019, do all applicable
actions identified in, and in accordance with,
the Accomplishment Instructions of Boeing
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Alert Requirements Bulletin 737–57A1345
RB, dated December 17, 2019. Actions
identified as terminating actions in Boeing
Alert Requirements Bulletin 737–57A1345
RB, dated December 17, 2019, terminate the
applicable required actions of this AD,
provided the terminating action is done in
accordance with the Accomplishment
Instructions of Boeing Alert Requirements
Bulletin 737–57A1345 RB, dated December
17, 2019.
Note 1 to paragraph (g): Guidance for
accomplishing the actions required by this
AD can be found in Boeing Alert Service
Bulletin 737–57A1345, dated December 17,
2019, which is referred to in Boeing Alert
Requirements Bulletin 737–57A1345 RB,
dated December 17, 2019.
(h) Exceptions to Service Information
Specifications
(1) Where Boeing Alert Requirements
Bulletin 737–57A1345 RB, dated December
17, 2019, uses the phrase ‘‘the original issue
date of Requirements Bulletin (RB) 737–
57A1345 RB,’’ this AD requires using ‘‘the
effective date of this AD.’’
(2) Where Boeing Alert Requirements
Bulletin 737–57A1345 RB, dated December
17, 2019, specifies contacting Boeing for
repair instructions: This AD requires doing
the repair before further flight using a
method approved in accordance with the
procedures specified in paragraph (i) of this
AD.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Los Angeles ACO Branch,
FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or local Flight Standards
District Office, as appropriate. If sending
information directly to the manager of the
certification office, send it to the attention of
the person identified in paragraph (j)(1) of
this AD. Information may be emailed to: 9ANM-LAACO-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 Company
Organization Designation Authorization
(ODA) that has been authorized by the
Manager, Los Angeles ACO Branch, FAA, to
make those findings. To be approved, the
repair method, modification deviation, or
alteration deviation must meet the
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Federal Register / Vol. 85, No. 32 / Tuesday, February 18, 2020 / Proposed Rules
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certification basis of the airplane, and the
approval must specifically refer to this AD.
Washington, DC 20590; telephone: (800)
647–5527, or (202) 366–9826. You must
identify FAA Docket No. FAA–2019–
(j) Related Information
1022; Airspace Docket No. 19–ANM–81,
(1) For more information about this AD,
at the beginning of your comments. You
contact Wayne Ha, Aerospace Engineer,
may also submit comments through the
Airframe Section, FAA, Los Angeles ACO
internet at https://www.regulations.gov.
Branch, 3960 Paramount Boulevard,
FAA Order 7400.11D, Airspace
Lakewood, CA 90712–4137; phone: 562–627–
5238; fax: 562–627–5210; email: wayne.ha@
Designations and Reporting Points, and
faa.gov.
subsequent amendments can be viewed
(2) For service information identified in
online at https://www.faa.gov/air_
this AD, contact Boeing Commercial
traffic/publications/. For further
Airplanes, Attention: Contractual & Data
information, you can contact the
Services (C&DS), 2600 Westminster Blvd.,
Airspace Policy Group, Federal Aviation
MC 110–SK57, Seal Beach, CA 90740–5600;
Administration, 800 Independence
telephone 562–797–1717; internet https://
Avenue SW, Washington, DC 20591;
www.myboeingfleet.com. You may view this
telephone: (202) 267–8783. The Order is
referenced service information at the FAA,
Transport Standards Branch, 2200 South
also available for inspection at the
216th St., Des Moines, WA. For information
National Archives and Records
on the availability of this material at the
Administration (NARA). For
FAA, call 206–231–3195.
information on the availability of FAA
Issued on February 11, 2020.
Order 7400.11D at NARA, email
fedreg.legal@nara.gov or go to https://
Gaetano A. Sciortino,
www.archives.gov/federal_register/cfr/
Deputy Director for Strategic Initiatives,
ibr_locations.html.
Compliance & Airworthiness Division,
Aircraft Certification Service.
FOR FURTHER INFORMATION CONTACT:
[FR Doc. 2020–03083 Filed 2–14–20; 8:45 am]
Richard Roberts, Federal Aviation
BILLING CODE 4910–13–P
Administration, Operations Support
Group, Western Service Center, 2200 S
216th Street, Des Moines, WA 98198–
DEPARTMENT OF TRANSPORTATION 6547; telephone (206) 231–2245.
SUPPLEMENTARY INFORMATION:
Federal Aviation Administration
Authority for This Rulemaking
14 CFR Part 71
The FAA’s authority to issue rules
[Docket No. FAA–2019–1022; Airspace
regarding aviation safety is found in
Docket No. 19–ANM–81]
Title 49 of the United States Code.
Subtitle I, Section 106 describes the
RIN 2120–AA66
authority of the FAA Administrator.
Subtitle VII, Aviation Programs,
Proposed Amendment of Class E
Airspace and Establishment of Class E describes in more detail the scope of the
Airspace Extension; Port Angeles, WA agency’s authority. This rulemaking is
promulgated under the authority
AGENCY: Federal Aviation
described in Subtitle VII, Part A,
Administration (FAA), DOT.
Subpart I, Section 40103. Under that
ACTION: Notice of proposed rulemaking
section, the FAA is charged with
(NPRM).
prescribing regulations to assign the use
of airspace necessary to ensure the
SUMMARY: This action proposes to
safety of aircraft and the efficient use of
modify the Class E surface area, Class E
airspace. This regulation is within the
airspace extending upward from 700
scope of that authority as it would
feet above the surface and create Class
modify the existing Class E airspace and
E airspace as an extension to the Class
establish new Class E airspace as an
E surface area at William R Fairchild
extension to the Class E surface area at
International Airport, Port Angeles, WA.
William R Fairchild International
Following a review of the airspace, the
Airport, Port Angeles, WA, in support of
FAA found it necessary to modify the
IFR operations at the airport.
existing airspace for William R Fairchild
Comments Invited
Airport for the safety and management
of Instrument Flight Rules (IFR)
Interested parties are invited to
operations at the Airport.
participate in this proposed rulemaking
DATES: Comments must be received on
by submitting such written data, views,
or before April 3, 2020.
or arguments, as they may desire.
Comments that provide the factual basis
ADDRESSES: Send comments on this
supporting the views and suggestions
proposal to the U.S. Department of
Transportation, Docket Operations, 1200 presented are particularly helpful in
developing reasoned regulatory
New Jersey Avenue SE, West Building
decisions on the proposal. Comments
Ground Floor, Room W12–140,
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8779
are specifically invited on the overall
regulatory, aeronautical, economic,
environmental, and energy-related
aspects of the proposal.
Communications should identify both
docket numbers (Docket No. FAA–
2019–1022; Airspace Docket No. 19–
ANM–81) and be submitted in triplicate
to DOT Docket Operations (see
ADDRESSES section for address and
phone number). You may also submit
comments through the internet at
https://www.regulations.gov.
Persons wishing the FAA to
acknowledge receipt of their comments
on this notice must submit with those
comments a self-addressed, stamped
postcard on which the following
statement is made: ‘‘Comments to
Docket No. FAA–2019–1022; Airspace
Docket No. 19–ANM–81.’’ The postcard
will be date/time stamped and returned
to the commenter.
All communications received on or
before the specified closing date for
comments will be considered before
taking action on the proposed rule. The
proposal contained in this notice may
be changed in light of the comments
received. A report summarizing each
substantive public contact with FAA
personnel concerned with this
rulemaking will be filed in the docket.
Availability of NPRMs
An electronic copy of this document
may be downloaded through the
internet at https://www.regulations.gov.
Recently published rulemaking
documents can also be accessed through
the FAA’s web page at https://
www.faa.gov/air_traffic/publications/
airspace_amendments/.
You may review the public docket
containing the proposal, any comments
received, and any final disposition in
person in the Dockets Office (see the
ADDRESSES section for the address and
phone number) between 9:00 a.m. and
5:00 p.m., Monday through Friday,
except federal holidays. An informal
docket may also be examined between
8:00 a.m. and 4:30 p.m., Monday
through Friday, except federal holidays,
at the Northwest Mountain Regional
Office of the Federal Aviation
Administration, Air Traffic
Organization, Western Service Center,
Operations Support Group, 2200 S
216th St., Des Moines, WA 98198–6547.
Availability and Summary of
Documents for Incorporation by
Reference
This document proposes to amend
FAA Order 7400.11D, Airspace
Designations and Reporting Points,
dated August 8, 2019, and effective
September 15, 2019. FAA Order
E:\FR\FM\18FEP1.SGM
18FEP1
]]>Agencies
[Federal Register Volume 85, Number 32 (Tuesday, February 18, 2020)]
[Proposed Rules]
[Pages 8776-8779]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-03083]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0097; Product Identifier 2019-NM-208-AD]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all The Boeing Company Model 737-300, -400, and -500 series
airplanes. This proposed AD was prompted by a report that a crack
indication consistent with fatigue cracking was found on the left
nacelle support overwing fitting flange fastener hole during teardown
of a Model 737-300 series airplane. This proposed AD would require a
general visual inspection of the strut to wing diagonal brace at a
certain location for cracking. For certain airplanes, this proposed AD
would also require an ultrasonic inspection of certain fasteners of the
nacelle support overwing fitting at a certain location for cracking.
For certain other airplanes, this proposed AD would also require a
magnetic check of the nacelle support overwing fitting at a certain
location to determine the material composition. This proposed AD would
also require applicable on-condition actions. The FAA is proposing this
AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by April 3,
2020.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, 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 com. You
may view this referenced service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For information
on the availability of this material at the FAA, call 206-231-3195. It
is also available on the internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2020-0097.
[[Page 8777]]
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-2020-
0097; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations is listed above.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Wayne Ha, Aerospace Engineer, Airframe
Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard,
Lakewood, CA 90712-4137; phone: 562-627-5238; fax: 562-627-5210; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2020-0097;
Product Identifier 2019-NM-208-AD'' at the beginning of your comments.
The FAA specifically invites comments on the overall regulatory,
economic, environmental, and energy aspects of this NPRM. The FAA will
consider all comments received by the closing date and may amend this
NPRM because of those comments.
The FAA will post all comments, without change, to https://www.regulations.gov, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact the agency receives about this proposed AD.
Discussion
The FAA has received a report indicating that a crack indication
consistent with fatigue cracking was found on the left nacelle support
overwing fitting flange fastener hole during teardown of a Model 737-
300 series airplane. Further analysis determined the root cause of the
crack is stress at the first two forward fasteners of the nacelle
support overwing fitting being higher than anticipated. Existing
maintenance planning document (MPD) inspections do not provide
opportunities to detect a failed nacelle support overwing fitting at
wing buttock line (WBL) 191. The crack finding occurred at 67,695 total
flight cycles and 80,269 total flight hours. This condition, if not
addressed, could result in an undetected crack in the nacelle support
overwing fittings or strut to wing diagonal brace, which could result
in the inability of the structure to carry limit load and could
adversely affect the structural integrity of the airplane.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Alert Requirements Bulletin 737-57A1345 RB,
dated December 17, 2019. This service information describes procedures
for a magnetic check to determine material composition of the nacelle
support overwing fitting at WBL 191; ultrasonic inspections of the
nacelle support overwing fitting at WBL 191 for cracking; general
visual inspections of the strut to wing diagonal brace at nacelle
station (STA) 278 for cracking; and applicable on-condition actions.
On-condition actions include repetitive ultrasonic inspections of the
nacelle support overwing fitting at WBL 191 for cracking, repetitive
general visual inspections of the strut to wing diagonal brace at
nacelle STA 278 for cracking, and repair. 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.
FAA's Determination
The FAA is proposing this AD because the FAA evaluated all the
relevant information and determined the unsafe condition described
previously is likely to exist or develop in other products of the same
type design.
Proposed AD Requirements
This proposed AD would require accomplishment of the actions
identified in Boeing Alert Requirements Bulletin 737-57A1345 RB, dated
December 17, 2019, described previously, except for any differences
identified as exceptions in the regulatory text of this proposed AD.
For information on the procedures and compliance times, see this
service information at https://www.regulations.gov by searching for and
locating Docket No. FAA-2020-0097.
Explanation of Requirements Bulletin
The FAA worked in conjunction with industry, under the
Airworthiness Directive Implementation Aviation Rulemaking Committee
(AD ARC), to enhance the AD system. One enhancement is a process for
annotating which steps in the service information are ``required for
compliance'' (RC) with an AD. Boeing has implemented this RC concept
into Boeing service bulletins.
In an effort to further improve the quality of ADs and AD-related
Boeing service information, a joint process improvement initiative was
worked between the FAA and Boeing. The initiative resulted in the
development of a new process in which the service information more
clearly identifies the actions needed to address the unsafe condition
in the ``Accomplishment Instructions.'' The new process results in a
Boeing Requirements Bulletin, which contains only the actions needed to
address the unsafe condition (i.e., only the RC actions).
Costs of Compliance
The FAA estimates that this proposed AD affects 158 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
Estimated Costs for Required Actions
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Magnetic Check........................ 1 work-hour x $85 per $0 $85 $13,430
hour = $85.
Ultrasonic Inspection................. 5 work-hours x $85 per 0 425 67,150
hour = $425.
General Visual Inspection............. 1 work-hour x $85 per 0 85 13,430
hour = $85.
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The FAA estimates the following costs to do any necessary on-
condition inspections that would be required. The FAA has no way of
determining the number of aircraft that might need these on-condition
inspections:
[[Page 8778]]
Estimated Costs of On-Condition Inspections
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Ultrasonic Inspections........... 5 work-hours x $85 $0 $425 per inspection $67,150 per
per hour = $425 cycle. inspection cycle.
per inspection
cycle.
General Visual Inspections....... 1 work-hour x $85 0 $85 per inspection $13,430 per
per hour = $85 per cycle. inspection cycle.
inspection cycle.
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The FAA has received no definitive data that would enable us to
provide cost estimates for the on-condition repairs specified in this
proposed 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.
The FAA is 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
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) 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.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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):
The Boeing Company: Docket No. FAA-2020-0097; Product Identifier
2019-NM-208-AD.
(a) Comments Due Date
The FAA must receive comments by April 3, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company Model 737-300, -400,
and -500 series 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 that a crack indication
consistent with fatigue cracking was found on the left nacelle
support overwing fitting flange fastener hole during teardown of a
Model 737-300 series airplane. The FAA is issuing this AD to address
the potential for undetected cracks in the nacelle support overwing
fittings or strut to wing diagonal brace, which could result in the
inability of the structure to carry limit load and could adversely
affect the structural integrity of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified by paragraph (h) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin 737-57A1345 RB, dated December 17, 2019,
do all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
737-57A1345 RB, dated December 17, 2019. Actions identified as
terminating actions in Boeing Alert Requirements Bulletin 737-
57A1345 RB, dated December 17, 2019, terminate the applicable
required actions of this AD, provided the terminating action is done
in accordance with the Accomplishment Instructions of Boeing Alert
Requirements Bulletin 737-57A1345 RB, dated December 17, 2019.
Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
737-57A1345, dated December 17, 2019, which is referred to in Boeing
Alert Requirements Bulletin 737-57A1345 RB, dated December 17, 2019.
(h) Exceptions to Service Information Specifications
(1) Where Boeing Alert Requirements Bulletin 737-57A1345 RB,
dated December 17, 2019, uses the phrase ``the original issue date
of Requirements Bulletin (RB) 737-57A1345 RB,'' this AD requires
using ``the effective date of this AD.''
(2) Where Boeing Alert Requirements Bulletin 737-57A1345 RB,
dated December 17, 2019, specifies contacting Boeing for repair
instructions: This AD requires doing the repair before further
flight using a method approved in accordance with the procedures
specified in paragraph (i) of this AD.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Los Angeles ACO Branch, FAA, has the authority
to approve AMOCs for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your
request to your principal inspector or local Flight Standards
District Office, as appropriate. If sending information directly to
the manager of the certification office, send it to the attention of
the person identified in paragraph (j)(1) of this AD. Information
may be emailed to: [email protected].
(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 Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Los
Angeles ACO Branch, FAA, to make those findings. To be approved, the
repair method, modification deviation, or alteration deviation must
meet the
[[Page 8779]]
certification basis of the airplane, and the approval must
specifically refer to this AD.
(j) Related Information
(1) For more information about this AD, contact Wayne Ha,
Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch,
3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-
5238; fax: 562-627-5210; email: [email protected].
(2) 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. You may view this referenced service
information at the FAA, Transport Standards Branch, 2200 South 216th
St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195.
Issued on February 11, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020-03083 Filed 2-14-20; 8:45 am]
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