83 FR 21948 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 92 (May 11, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 92 (May 11, 2018)
| Page Range | 21948-21951 | |
| FR Document | 2018-09978 |
[Federal Register Volume 83, Number 92 (Friday, May 11, 2018)] [Proposed Rules] [Pages 21948-21951] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-09978] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0393; Product Identifier 2018-NM-010-AD] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD was prompted by reports of loose, worn, or missing attachment bolts for the main landing gear (MLG) center door assemblies. This proposed AD would require repetitive detailed inspections of the forward and aft MLG center door assembly attachments for loose, missing, damaged, or bottomed out attachment bolts; any wear to the retention clip assemblies as applicable; and applicable on-condition actions. This proposed AD would also provide an optional terminating action for the repetitive inspections. Since this is a rotable parts issue, the applicability of this AD has been expanded beyond the airplanes listed in the related service bulletin to include all airplanes on which the MLG center door assemblies may be installed. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by June 25, 2018. 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 http://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 http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0393. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0393; 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 NPRM, the regulatory evaluation, any comments received, and [[Page 21949]] other information. The street address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; email: [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite 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-2018-0393; Product Identifier 2018-NM-010-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We have received reports of loose, worn, or missing attachment bolts of the MLG center door assemblies. One operator reported the departure and loss of the center and inboard door assemblies from the left MLG during flight on a Model 737-800 series airplane. The airplane had accumulated 28,279 flight cycles when the incident occurred. There have also been several reports of the two inboard bolts that attach the MLG center door assembly to the shock strut cylinder being loose or missing. One operator reported loose, worn, and missing attachment bolts on several airplanes that had accumulated from 15,921 to 31,673 flight cycles. This condition, if not corrected, could result in departure of the center and inboard door assemblies, subsequent damage to the main flap and horizontal stabilizer, and loss of control of the airplane. To support operations, many operators have put processes in place that, given certain conditions, allow them to rotate or transfer parts or equipment within their fleets to different aircraft than what is defined in the manufacturer's type design. We have determined that the parts or equipment subject to the unsafe condition addressed by this proposed AD may have been rotated or transferred in this manner, due to similarity with parts or equipment not subject to the unsafe condition addressed by this proposed AD. Therefore, this proposed AD includes all Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Special Attention Service Bulletin 737-52-1170, Revision 1, dated December 19, 2017 (``BSASB 737-52-1170, R1''). The service information describes procedures for repetitive detailed inspections of the forward and aft MLG center door assembly attachments for loose, missing, damaged, or bottomed out attachment bolts; and any wear to the retention clip assemblies as applicable; and applicable on- condition actions. The service information also describes procedures for modification of the MLG center door assembly retention clip assemblies as an optional terminating action for the repetitive inspections. 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 We are proposing this AD because we 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 as ``RC'' (required for compliance) in the Accomplishment Instructions of BSASB 737-52-1170, R1, described previously, except as discussed under ``Differences Between this Proposed AD and the Service Information,'' and 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0393. Differences Between This Proposed AD and the Service Information The effectivity of BSASB 737-52-1170, R1, is limited to Model 737- 600, -700, -700C, -800, -900, and -900ER series airplanes line numbers 1 through 6724 inclusive and 6736. The affected MLG center door assemblies are rotable parts, and we have determined that these parts could later be installed on airplanes that were initially delivered with acceptable MLG center door assemblies, thereby subjecting those airplanes to the unsafe condition. Therefore, the applicability of this proposed AD includes all Model 737-600, -700, -700C, -800, -900, and - 900ER series airplanes to address the rotability of these parts. This difference has been coordinated with Boeing. Where BSASB 737-52-1170, R1, specifies Group 3 airplanes as having line numbers 4275 through 6724 inclusive, and 6736, this proposed AD specifies Group 3 airplanes as line number 4275 through any airplane with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated ``on or before the effective date of this AD,'' as specified in paragraph (c)(3) of this proposed AD. For Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated after the effective date of the final rule, operators would not be required to complete the actions described in paragraph (g) of this proposed AD, but would be required to comply with the parts installation prohibition in paragraph (j) of this proposed AD. Costs of Compliance We estimate that this proposed AD affects 1,814 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs for Required Actions ---------------------------------------------------------------------------------------------------------------- Cost on U.S. Action Labor cost Parts cost Cost per product operators ---------------------------------------------------------------------------------------------------------------- Inspection..................... 2 work-hours x $85 per $0 $170 per $308,380 per hour = $170 per inspection cycle. inspection cycle. inspection cycle. ---------------------------------------------------------------------------------------------------------------- [[Page 21950]] Estimated Costs for Optional Terminating Action ---------------------------------------------------------------------------------------------------------------- Action Labor cost Parts cost Cost per product ---------------------------------------------------------------------------------------------------------------- Modification.......................... Up to 6 work-hours x $85 per $2,900 Up to $3,410. hour = Up to $510. ---------------------------------------------------------------------------------------------------------------- We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this proposed AD. According to the manufacturer some of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all costs in our cost estimate. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: ``General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. This proposed AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes to the Director of the System Oversight Division. Regulatory Findings We 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) Is not a ``significant rule'' under the 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. 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-2018-0393; Product Identifier 2018-NM-010-AD. (a) Comments Due Date We must receive comments by June 25, 2018. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 737-600, -700, - 700C, -800, -900, and -900ER series airplanes, certificated in any category, as specified in paragraphs (c)(1) through (c)(4) of this AD. (1) Airplanes in Group 1, and in Group 2, Configuration 1, as identified in Boeing Special Attention Service Bulletin 737-52-1170, Revision 1, dated December 19, 2017 (``BSASB 737-52-1170, R1''). (2) Airplanes in Group 2, Configuration 2, as identified in BSASB 737-52-1170, R1. (3) Airplanes in Group 3, as identified in BSASB 737-52-1170, R1, except where this service bulletin specifies the groups as line numbers 4275 through 6724 inclusive, and 6736, this AD specifies those groups as line number 4275 through any line number of an airplane with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated on or before the effective date of this AD. (4) All Model 737-600, -700, -700C, -800, -900 and -900ER series airplanes with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated after the effective date of this AD. (d) Subject Air Transport Association (ATA) of America Code 52, Doors. (e) Unsafe Condition This AD was prompted by reports of loose, worn, or missing attachment bolts for the main landing gear (MLG) center door assemblies. We are issuing this AD to address loose, missing, damaged, or bottomed out attachment bolts, and any wear to the retention clip assemblies, which could result in departure of the center and inboard door assemblies, subsequent damage to the main flap and horizontal stabilizer, and loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions For airplanes identified in paragraphs (c)(1), (c)(2), or (c)(3) of this AD: Except as required by paragraph (h) of this AD, at the applicable time specified in Tables 1 through 6, as applicable, of paragraph 1.E., Compliance, of BSASB 737-52-1170, R1, do all applicable actions identified as ``RC'' (required for compliance) in, and in accordance with, the Accomplishment Instructions of BSASB 737-52-1170, R1. (h) Exceptions to Service Information Specifications For purposes of determining compliance with the requirements of this AD: Where BSASB 737-52-1170, Revision 1, uses the phrase ``the original issue date of this service bulletin,'' this AD requires using ``the effective date of this AD.'' (i) Optional Terminating Action for Repetitive Inspections Accomplishment of the modification of the MLG center door retention clip assemblies specified in Part 5 of the Accomplishment Instructions of BSASB 737-52-1170, R1, terminates the repetitive inspections required by paragraph (g) of this AD for that MLG center door retention clip only. The requirements of paragraph (j) of this AD continue to apply. [[Page 21951]] (j) Parts Installation Limitation As of the effective date of this AD, no person may install an MLG center door assembly on any airplane unless all actions for Group 3 airplanes identified as RC in, and in accordance with, the Accomplishment Instructions of BSASB 737-52-1170, R1, have been accomplished on that MLG center door assembly within the compliance times specified in Tables 4, 5, and 6, as applicable, of paragraph 1.E., Compliance, of BSASB 737-52-1170, R1. (k) Credit for Previous Actions This paragraph provides credit for the actions specified in paragraph (g) of this AD, if those actions were performed before the effective date of this AD using Boeing Special Attention Service Bulletin 737-52-1170, dated July 29, 2014. (l) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (m)(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 Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO Branch, 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 (h) of this AD: For service information that contains steps that are labeled as RC, the provisions of paragraphs (l)(4)(i) and (l)(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. (m) Related Information (1) For more information about this AD, contact Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; 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 in Des Moines, Washington, on April 27, 2018. Michael Kaszycki, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-09978 Filed 5-10-18; 8:45 am] BILLING CODE 4910-13-P
![21948 Federal Register / Vol. 83, No. 92 / Friday, May 11, 2018 / Proposed Rules
fuselage frame webs at stations forward and this AD. Information may be emailed to: 9- missing attachment bolts for the main
aft of the overwing emergency exits between ANM-LAACO-AMOC-Requests@faa.gov. landing gear (MLG) center door
stringers S–7 and S–8. We are issuing this AD (2) Before using any approved AMOC, assemblies. This proposed AD would
to address fuselage frame web cracking, notify your appropriate principal inspector,
require repetitive detailed inspections of
which may lead to subsequent failure of the or lacking a principal inspector, the manager
surrounding structure, and ultimately result the forward and aft MLG center door
of the local flight standards district office/
in rapid decompression and loss of structural certificate holding district office. assembly attachments for loose, missing,
integrity of the airplane. (3) An AMOC that provides an acceptable damaged, or bottomed out attachment
level of safety may be used for any repair, bolts; any wear to the retention clip
(f) Compliance
modification, or alteration required by this assemblies as applicable; and applicable
Comply with this AD within the AD if it is approved by the Boeing on-condition actions. This proposed AD
compliance times specified, unless already Commercial Airplanes Organization would also provide an optional
done. Designation Authorization (ODA) that has terminating action for the repetitive
(g) Required Actions for Group 1 Airplanes been authorized by the Manager, Los Angeles
inspections. Since this is a rotable parts
ACO Branch, to make those findings. To be
For airplanes identified as Group 1 in approved, the repair method, modification issue, the applicability of this AD has
Boeing Alert Requirements Bulletin 737– deviation, or alteration deviation must meet been expanded beyond the airplanes
53A1371 RB, dated January 19, 2018: Within listed in the related service bulletin to
the certification basis of the airplane, and the
120 days after the effective date of this AD, approval must specifically refer to this AD. include all airplanes on which the MLG
inspect the fuselage frame webs at station center door assemblies may be installed.
(STA) 616 and STA 639 between stringers S– (k) Related Information
We are proposing this AD to address the
7 and S–8 and do all applicable repairs, using (1) For more information about this AD,
a method approved in accordance with the unsafe condition on these products.
contact David Truong, Aerospace Engineer,
procedures specified in paragraph (j) of this Airframe Section, FAA, Los Angeles ACO DATES: We must receive comments on
AD. Branch, 3960 Paramount Boulevard, this proposed AD by June 25, 2018.
(h) Required Actions for Groups 2 Through Lakewood, CA 90712–4137; phone: 562–627– ADDRESSES: You may send comments,
4 Airplanes 5224; fax: 562–627–5210; email: using the procedures found in 14 CFR
david.truong@faa.gov. 11.43 and 11.45, by any of the following
Except for airplanes identified in (2) For service information identified in
paragraph (g) of this AD and except as methods:
this AD, contact Boeing Commercial
required by paragraph (i) of this AD: At the Airplanes, Attention: Contractual & Data
• Federal eRulemaking Portal: Go to
applicable times specified in the Services (C&DS), 2600 Westminster Blvd., http://www.regulations.gov. Follow the
‘‘Compliance’’ paragraph of Boeing Alert MC 110–SK57, Seal Beach, CA 90740–5600; instructions for submitting comments.
Requirements Bulletin 737–53A1371 RB, telephone 562–797–1717; internet https:// • Fax: 202–493–2251.
dated January 19, 2018, do all applicable www.myboeingfleet.com. You may view this • Mail: U.S. Department of
actions identified in, and in accordance with, referenced service information at the FAA, Transportation, Docket Operations, M–
the Accomplishment Instructions of Boeing Transport Standards Branch, 2200 South 30, West Building Ground Floor, Room
Alert Requirements Bulletin 737–53A1371 216th St., Des Moines, WA. For information
RB, dated January 19, 2018. W12–140, 1200 New Jersey Avenue SE,
on the availability of this material at the Washington, DC 20590.
Note 1 to paragraph (h) of this AD: FAA, call 206–231–3195.
Guidance for accomplishing the actions • Hand Delivery: Deliver to Mail
required by this AD can be found in Boeing Issued in Des Moines, Washington, on address above between 9 a.m. and 5
Alert Service Bulletin 737–53A1371, dated April 27, 2018. p.m., Monday through Friday, except
January 19, 2018, which is referred to in Michael Kaszycki, Federal holidays.
Boeing Alert Requirements Bulletin 737– Acting Director, System Oversight Division, For service information identified in
53A1371 RB, dated January 19, 2018. Aircraft Certification Service. this NPRM, contact Boeing Commercial
[FR Doc. 2018–09977 Filed 5–10–18; 8:45 am] Airplanes, Attention: Contractual & Data
(i) Exceptions to Service Information
Specifications BILLING CODE 4910–13–P Services (C&DS), 2600 Westminster
Blvd., MC 110–SK57, Seal Beach, CA
(1) For purposes of determining
90740–5600; telephone 562–797–1717;
compliance with the requirements of this AD:
DEPARTMENT OF TRANSPORTATION internet https://
Where Boeing Alert Requirements Service
Bulletin 737–53A1371 RB, dated January 19, www.myboeingfleet.com. You may view
Federal Aviation Administration this referenced service information at
2018, uses the phrase ‘‘the original issue date
of Requirements Bulletin 737–53A1371 RB,’’ the FAA, Transport Standards Branch,
this AD requires using ‘‘the effective date of 14 CFR Part 39 2200 South 216th St., Des Moines, WA.
this AD.’’ [Docket No. FAA–2018–0393; Product For information on the availability of
(2) Where Boeing Alert Requirements Identifier 2018–NM–010–AD] this material at the FAA, call 206–231–
Bulletin 737–53A1371 RB, dated January 19, 3195. It is also available on the internet
2018, specifies contacting Boeing, this AD RIN 2120–AA64
at http://www.regulations.gov by
requires repair using a method approved in
accordance with the procedures specified in Airworthiness Directives; The Boeing searching for and locating Docket No.
paragraph (j) of this AD. Company Airplanes FAA–2018–0393.
(j) Alternative Methods of Compliance Examining the AD Docket
AGENCY: Federal Aviation
(AMOCs) Administration (FAA), DOT. You may examine the AD docket on
(1) The Manager, Los Angeles ACO Branch, the internet at http://
sradovich on DSK3GMQ082PROD with PROPOSALS
ACTION: Notice of proposed rulemaking
FAA, has the authority to approve AMOCs www.regulations.gov by searching for
for this AD, if requested using the procedures
(NPRM).
and locating Docket No. FAA–2018–
found in 14 CFR 39.19. In accordance with
SUMMARY: We propose to adopt a new 0393; or in person at the Docket
14 CFR 39.19, send your request to your
principal inspector or local Flight Standards airworthiness directive (AD) for all The Management Facility between 9 a.m.
District Office, as appropriate. If sending Boeing Company Model 737–600, –700, and 5 p.m., Monday through Friday,
information directly to the manager of the –700C, –800, –900, and –900ER series except Federal holidays. The AD docket
certification office, send it to the attention of airplanes. This proposed AD was contains this NPRM, the regulatory
the person identified in paragraph (k)(1) of prompted by reports of loose, worn, or evaluation, any comments received, and
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ESTIMATED COSTS FOR OPTIONAL TERMINATING ACTION
Action Labor cost Parts cost Cost per product
Modification ............................. Up to 6 work-hours × $85 per hour = Up to $510 ................... $2,900 Up to $3,410.
We have received no definitive data For the reasons discussed above, I numbers 4275 through 6724 inclusive, and
that would enable us to provide cost certify this proposed regulation: 6736, this AD specifies those groups as line
estimates for the on-condition actions (1) Is not a ‘‘significant regulatory number 4275 through any line number of an
specified in this proposed AD. action’’ under Executive Order 12866, airplane with an original Certificate of
According to the manufacturer some (2) Is not a ‘‘significant rule’’ under Airworthiness or an original Export
of the costs of this proposed AD may be the DOT Regulatory Policies and Certificate of Airworthiness dated on or
covered under warranty, thereby Procedures (44 FR 11034, February 26, before the effective date of this AD.
(4) All Model 737–600, –700, –700C, –800,
reducing the cost impact on affected 1979),
–900 and –900ER series airplanes with an
individuals. We do not control warranty (3) Will not affect intrastate aviation
original Certificate of Airworthiness or an
coverage for affected individuals. As a in Alaska, and original Export Certificate of Airworthiness
result, we have included all costs in our (4) Will not have a significant
dated after the effective date of this AD.
cost estimate. economic impact, positive or negative,
on a substantial number of small entities (d) Subject
Authority for This Rulemaking under the criteria of the Regulatory Air Transport Association (ATA) of
Title 49 of the United States Code Flexibility Act. America Code 52, Doors.
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I, List of Subjects in 14 CFR Part 39 (e) Unsafe Condition
section 106, describes the authority of Air transportation, Aircraft, Aviation This AD was prompted by reports of loose,
the FAA Administrator. Subtitle VII: safety, Incorporation by reference, worn, or missing attachment bolts for the
Aviation Programs, describes in more Safety. main landing gear (MLG) center door
detail the scope of the Agency’s assemblies. We are issuing this AD to address
The Proposed Amendment loose, missing, damaged, or bottomed out
authority.
Accordingly, under the authority attachment bolts, and any wear to the
We are issuing this rulemaking under
delegated to me by the Administrator, retention clip assemblies, which could result
the authority described in Subtitle VII, in departure of the center and inboard door
Part A, Subpart III, Section 44701: the FAA proposes to amend 14 CFR part
assemblies, subsequent damage to the main
‘‘General requirements.’’ Under that 39 as follows:
flap and horizontal stabilizer, and loss of
section, Congress charges the FAA with control of the airplane.
promoting safe flight of civil aircraft in PART 39—AIRWORTHINESS
air commerce by prescribing regulations DIRECTIVES (f) Compliance
for practices, methods, and procedures Comply with this AD within the
■ 1. The authority citation for part 39
the Administrator finds necessary for compliance times specified, unless already
continues to read as follows: done.
safety in air commerce. This regulation
is within the scope of that authority Authority: 49 U.S.C. 106(g), 40113, 44701.
(g) Required Actions
because it addresses an unsafe condition § 39.13 [Amended] For airplanes identified in paragraphs
that is likely to exist or develop on ■ 2. The FAA amends § 39.13 by adding (c)(1), (c)(2), or (c)(3) of this AD: Except as
products identified in this rulemaking the following new airworthiness required by paragraph (h) of this AD, at the
action. directive (AD): applicable time specified in Tables 1 through
This proposed AD is issued in 6, as applicable, of paragraph 1.E.,
accordance with authority delegated by The Boeing Company: Docket No. FAA– Compliance, of BSASB 737–52–1170, R1, do
the Executive Director, Aircraft 2018–0393; Product Identifier 2018–
all applicable actions identified as ‘‘RC’’
NM–010–AD.
Certification Service, as authorized by (required for compliance) in, and in
FAA Order 8000.51C. In accordance (a) Comments Due Date accordance with, the Accomplishment
with that order, issuance of ADs is We must receive comments by June 25, Instructions of BSASB 737–52–1170, R1.
normally a function of the Compliance 2018. (h) Exceptions to Service Information
and Airworthiness Division, but during (b) Affected ADs Specifications
this transition period, the Executive For purposes of determining compliance
Director has delegated the authority to None.
with the requirements of this AD: Where
issue ADs applicable to transport (c) Applicability BSASB 737–52–1170, Revision 1, uses the
category airplanes to the Director of the This AD applies to all The Boeing phrase ‘‘the original issue date of this service
System Oversight Division. Company Model 737–600, –700, –700C, bulletin,’’ this AD requires using ‘‘the
–800, –900, and –900ER series airplanes, effective date of this AD.’’
Regulatory Findings certificated in any category, as specified in
(i) Optional Terminating Action for
We determined that this proposed AD paragraphs (c)(1) through (c)(4) of this AD.
Repetitive Inspections
would not have federalism implications (1) Airplanes in Group 1, and in Group 2,
sradovich on DSK3GMQ082PROD with PROPOSALS
under Executive Order 13132. This Configuration 1, as identified in Boeing Accomplishment of the modification of the
Special Attention Service Bulletin 737–52– MLG center door retention clip assemblies
proposed AD would not have a
1170, Revision 1, dated December 19, 2017 specified in Part 5 of the Accomplishment
substantial direct effect on the States, on Instructions of BSASB 737–52–1170, R1,
(‘‘BSASB 737–52–1170, R1’’).
the relationship between the national (2) Airplanes in Group 2, Configuration 2, terminates the repetitive inspections required
Government and the States, or on the as identified in BSASB 737–52–1170, R1. by paragraph (g) of this AD for that MLG
distribution of power and (3) Airplanes in Group 3, as identified in center door retention clip only. The
responsibilities among the various BSASB 737–52–1170, R1, except where this requirements of paragraph (j) of this AD
levels of government. service bulletin specifies the groups as line continue to apply.
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![Federal Register / Vol. 83, No. 92 / Friday, May 11, 2018 / Proposed Rules 21951
(j) Parts Installation Limitation (m) Related Information • Fax: (202) 493–2251.
As of the effective date of this AD, no (1) For more information about this AD, • Mail: U.S. Department of
person may install an MLG center door contact Alan Pohl, Aerospace Engineer, Transportation, Docket Operations, M–
assembly on any airplane unless all actions Airframe Section, FAA, Seattle ACO Branch, 30, West Building Ground Floor, Room
for Group 3 airplanes identified as RC in, and 2200 South 216th St., Des Moines, WA W12–140, 1200 New Jersey Avenue SE,
in accordance with, the Accomplishment 98198; phone and fax: 206–231–3527; email: Washington, DC 20590.
Instructions of BSASB 737–52–1170, R1, alan.pohl@faa.gov. • Hand Delivery: U.S. Department of
have been accomplished on that MLG center (2) For service information identified in Transportation, Docket Operations, M–
door assembly within the compliance times this AD, contact Boeing Commercial 30, West Building Ground Floor, Room
specified in Tables 4, 5, and 6, as applicable, Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd.,
W12–140, 1200 New Jersey Avenue SE,
of paragraph 1.E., Compliance, of BSASB Washington, DC 20590, between 9 a.m.
737–52–1170, R1. MC 110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet https:// and 5 p.m., Monday through Friday,
(k) Credit for Previous Actions www.myboeingfleet.com. You may view this except Federal holidays.
This paragraph provides credit for the referenced service information at the FAA, For service information identified in
actions specified in paragraph (g) of this AD, Transport Standards Branch, 2200 South this proposed AD, contact Pacific
if those actions were performed before the 216th St., Des Moines, WA. For information Aerospace Limited, Airport Road,
effective date of this AD using Boeing Special on the availability of this material at the Hamilton, Private Bag 3027, Hamilton
Attention Service Bulletin 737–52–1170, FAA, call 206–231–3195. 3240, New Zealand; phone: +64 7843
dated July 29, 2014. Issued in Des Moines, Washington, on 6144; fax: +64 843 6134; email: pacific@
April 27, 2018. aerospace.co.nz; internet:
(l) Alternative Methods of Compliance
(AMOCs) Michael Kaszycki, www.aerospace.co.nz. You may review
Acting Director, System Oversight Division, copies of the referenced service
(1) The Manager, Seattle ACO Branch, information at the FAA, Policy and
Aircraft Certification Service.
FAA, has the authority to approve AMOCs
[FR Doc. 2018–09978 Filed 5–10–18; 8:45 am] Innovation Division, 901 Locust, Kansas
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with BILLING CODE 4910–13–P
City, Missouri 64106. For information
14 CFR 39.19, send your request to your on the availability of this material at the
principal inspector or local Flight Standards FAA, call (816) 329–4148.
District Office, as appropriate. If sending DEPARTMENT OF TRANSPORTATION Examining the AD Docket
information directly to the manager of the
certification office, send it to the attention of Federal Aviation Administration You may examine the AD docket on
the person identified in paragraph (m)(1) of the internet at http://
this AD. Information may be emailed to: 9- 14 CFR Part 39 www.regulations.gov by searching for
ANM-Seattle-ACO-AMOC-Requests@faa.gov. and locating Docket No. FAA–2018–
(2) Before using any approved AMOC, [Docket No. FAA–2018–0385; Product 0385; or in person at Docket Operations
notify your appropriate principal inspector, Identifier 2018–CE–019–AD]
between 9 a.m. and 5 p.m., Monday
or lacking a principal inspector, the manager RIN 2120–AA64 through Friday, except Federal holidays.
of the local flight standards district office/ The AD docket contains this proposed
certificate holding district office. Airworthiness Directives; Pacific AD, the regulatory evaluation, any
(3) An AMOC that provides an acceptable Aerospace Limited Airplanes comments received, and other
level of safety may be used for any repair,
information. The street address for
modification, or alteration required by this AGENCY: Federal Aviation
AD if it is approved by the Boeing Docket Operations (telephone (800)
Administration (FAA), Department of
Commercial Airplanes Organization 647–5527) is in the ADDRESSES section.
Transportation (DOT).
Designation Authorization (ODA) that has Comments will be available in the AD
ACTION: Notice of proposed rulemaking docket shortly after receipt.
been authorized by the Manager, Seattle ACO
Branch, to make those findings. To be (NPRM). FOR FURTHER INFORMATION CONTACT:
approved, the repair method, modification Mike Kiesov, Aerospace Engineer, FAA,
SUMMARY: We propose to adopt a new
deviation, or alteration deviation must meet Small Airplane Standards Branch, 901
the certification basis of the airplane, and the
airworthiness directive (AD) for Pacific
Aerospace Limited Model 750XL Locust, Room 301, Kansas City,
approval must specifically refer to this AD. Missouri 64106; telephone: (816) 329–
(4) Except as required by paragraph (h) of airplanes. This proposed AD results
from mandatory continuing 4144; fax: (816) 329–4090; email:
this AD: For service information that
contains steps that are labeled as RC, the airworthiness information (MCAI) mike.kiesov@faa.gov.
provisions of paragraphs (l)(4)(i) and (l)(4)(ii) originated by an aviation authority of SUPPLEMENTARY INFORMATION:
of this AD apply. another country to identify and correct Comments Invited
(i) The steps labeled as RC, including an unsafe condition on an aviation
substeps under an RC step and any figures product. The MCAI describes the unsafe We invite you to send any written
identified in an RC step, must be done to condition as an incorrect size bolt may relevant data, views, or arguments about
comply with the AD. If a step or substep is have been used to assemble the elevator this proposed AD. Send your comments
labeled ‘‘RC Exempt,’’ then the RC
bellcrank pivot joint. We are issuing this to an address listed under the
requirement is removed from that step or ADDRESSES section. Include ‘‘Docket No.
substep. An AMOC is required for any proposed AD to require actions to
address the unsafe condition on these FAA–2018–0385; Product Identifier
deviations to RC steps, including substeps 2018–CE–019–AD’’ at the beginning of
sradovich on DSK3GMQ082PROD with PROPOSALS
and identified figures. products.
your comments. We specifically invite
(ii) Steps not labeled as RC may be DATES: We must receive comments on comments on the overall regulatory,
deviated from using accepted methods in this proposed AD by June 25, 2018.
accordance with the operator’s maintenance
economic, environmental, and energy
or inspection program without obtaining ADDRESSES: You may send comments by aspects of this proposed AD. We will
approval of an AMOC, provided the RC steps, any of the following methods: consider all comments received by the
including substeps and identified figures, can • Federal eRulemaking Portal: Go to closing date and may amend this
still be done as specified, and the airplane http://www.regulations.gov. Follow the proposed AD because of those
can be put back in an airworthy condition. instructions for submitting comments. comments.
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Document Created: 2018-11-02 09:50:06
Document Modified: 2018-11-02 09:50:06
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by June 25, 2018. | |
| Contact | Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; email: [email protected] | |
| FR Citation | 83 FR 21948 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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