82 FR 38623 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 156 (August 15, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 156 (August 15, 2017)
| Page Range | 38623-38626 | |
| FR Document | 2017-16780 |
[Federal Register Volume 82, Number 156 (Tuesday, August 15, 2017)] [Proposed Rules] [Pages 38623-38626] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2017-16780] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-0776; Product Identifier 2017-NM-062-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 certain The Boeing Company Model 737-200, -300, -400, and -500 series airplanes. This proposed AD was prompted by reports of cracks in the frame web adjacent to the air-conditioning support brackets. This proposed AD would require an inspection for any air conditioning bracket assembly or intercostal, and depending on the results, repetitive inspections for cracking of certain locations and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products. [[Page 38624]] DATES: We must receive comments on this proposed AD by September 29, 2017. 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, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2017-0776. 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-2017- 0776; 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 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, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 425-917-6590; 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-2017-0776; Product Identifier 2017-NM-062-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 indicating that operators have found cracks in the frame web adjacent to the air-conditioning support brackets. One crack was found in the outboard fastener hole common to the stringer tie for stringer S-8R at station (STA) 380 with a crack size 0.35 inch, at 35,889 total flight cycles. Another crack was found in the outboard fastener hole common to the stringer tie for stringer S-8L at STA 907 with a crack size 0.20 inch, at 28,165 total flight cycles. The frame web cracks are due to fatigue caused by the stringer tie reacting to frame twisting that is the result of the air- conditioning bracket binding within the slip joint assembly. This binding results in out-of-plane (forward-aft) loads being placed onto the frame and occurs because of thermal expansion of the air conditioning rail as well as fuselage deflection during flight transmitting loads into the rail. Such cracks, if not corrected, could result in a severed frame. A severed frame, in combination with potential multiple site damage (MSD) at the stringer S-10 lap splice or chem-mill skin cracks, can result in possible rapid decompression and loss of structural integrity of the airplane. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017. The service information describes procedures for an inspection for any air-conditioning bracket assembly or intercostal, repetitive inspections for cracking of certain locations, and applicable on- condition actions. 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 Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2017-0776. Costs of Compliance We estimate that this proposed AD affects 302 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Action Labor cost Parts cost Cost per product Cost on U.S. operators ---------------------------------------------------------------------------------------------------------------- Inspections.................. 27 work-hours x $85 $0 $2,295 per $693,090 per inspection per hour = $2,295 inspection cycle. per inspection cycle. cycle. ---------------------------------------------------------------------------------------------------------------- [[Page 38625]] We have received no definitive data that would enable us to provide cost estimates for the on-condition actions 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. 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-2017-0776; Product Identifier 2017-NM-062-AD. (a) Comments Due Date We must receive comments by September 29, 2017. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 737-200, -300, -400, and -500 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by reports of cracks in the frame web adjacent to the air-conditioning support brackets. We are issuing this AD to detect and correct cracks in the frame web adjacent to the air-conditioning support brackets, which could result in a severed frame, and in combination with potential multiple site damage (MSD) at the stringer S-10 lap splice or chem-mill skin cracks, could result in possible rapid decompression and loss of structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as required by paragraph (h) of this AD: At the applicable times specified in paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017, do all applicable actions identified as ``RC'' (required for compliance) in, and in accordance with, the Accomplishment Instructions of Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017. (h) Exceptions to Service Information Specifications (1) Where Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017, uses the phrase ``after the original issue date of this service bulletin,'' for purposes of determining compliance with the requirements of this AD, the phrase ``after the effective date of this AD'' applies. (2) Where Boeing Alert Service Bulletin 737-53A1363, dated April 7, 2017, specifies contacting Boeing, and specifies that action as RC: This AD requires using a method approved in accordance with the procedures specified in paragraph (j) of this AD. (i) Terminating Action for Repetitive Inspections Accomplishment of a reinforcement repair at the stringer tie location in accordance with a method approved in accordance with the procedures specified in paragraph (j) of this AD terminates the repetitive inspections required by paragraph (g) of this AD for the repaired stringer tie location only, provided the crack is removed or trimmed out from the stringer tie holes. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (k)(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)(2) of this AD: For service information that contains steps that are labeled as 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 [[Page 38626]] 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 (1) For more information about this AD, contact Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 425-917-6590; 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, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Issued in Renton, Washington, on August 2, 2017. Jeffrey E. Duven, Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2017-16780 Filed 8-14-17; 8:45 am] BILLING CODE 4910-13-P
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Certification Service, as authorized by (c) Applicability the DOA, the approval must include the
FAA Order 8000.51C. In accordance This AD applies to Saab AB, Saab DOA-authorized signature.
with that order, issuance of ADs is Aeronautics (formerly known as Saab AB, (j) Related Information
normally a function of the Compliance Saab Aerosystems) Model SAAB 340B
airplanes, certificated in any category, serial (1) Refer to Mandatory Continuing
and Airworthiness Division, but during Airworthiness Information (MCAI) EASA
this transition period, the Executive numbers 362, 363, 385, and 405.
Airworthiness Directive 2017–0067, dated
Director has delegated the authority to (d) Subject April 24, 2017, for related information. This
issue ADs applicable to transport Air Transport Association (ATA) of MCAI may be found in the AD docket on the
category airplanes to the Director of the America Code 27, Flight Controls. Internet at http://www.regulations.gov by
System Oversight Division. searching for and locating Docket No. FAA–
(e) Reason 2017–0777.
Regulatory Findings This AD was prompted by reports of (2) For more information about this AD,
We determined that this proposed AD natural stall events in icing conditions, contact Shahram Daneshmandi, Aerospace
without prior stall warnings. We are issuing Engineer, International Section, Transport
would not have federalism implications this AD to prevent a natural stall event in Standards Branch, FAA, 1601 Lind Avenue
under Executive Order 13132. This icing conditions without any stall warning, SW., Renton, WA 98057–3356; telephone:
proposed AD would not have a which could result in loss of control of the 425–227–1112; fax: 425–227–1149.
substantial direct effect on the States, on airplane. (3) For service information identified in
the relationship between the national this AD, contact Saab AB, Saab Aeronautics,
(f) Compliance
Government and the States, or on the SE–581 88, Linköping, Sweden; telephone
distribution of power and Comply with this AD within the +46 13 18 5591; fax +46 13 18 4874; email
compliance times specified, unless already saab340.techsupport@saabgroup.com;
responsibilities among the various done.
levels of government. Internet http://www.saabgroup.com. You
(g) Modification may view this service information at the
For the reasons discussed above, I FAA, Transport Standards Branch, 1601 Lind
certify this proposed regulation: Within 12 months after the effective date Avenue SW., Renton, WA. For information
1. Is not a ‘‘significant regulatory of this AD, do the actions specified in on the availability of this material at the
action’’ under Executive Order 12866; paragraphs (g)(1) and (g)(2) of this AD. FAA, call 425–227–1221.
2. Is not a ‘‘significant rule’’ under the (1) Install a provision for a modified stall
warning system, in accordance with the Issued in Renton, Washington, on August
DOT Regulatory Policies and Procedures 3, 2017.
Accomplishment Instructions of Saab Service
(44 FR 11034, February 26, 1979); Bulletin 340–27–117, dated January 23, 2017. Jeffrey E. Duven,
3. Will not affect intrastate aviation in (2) Install new stall warning computers and
Alaska; and Director, System Oversight Division, Aircraft
activate the modified stall warning system, in Certification Service.
4. Will not have a significant accordance with the Accomplishment
economic impact, positive or negative, [FR Doc. 2017–17095 Filed 8–14–17; 8:45 am]
Instructions of Saab Service Bulletin 340–27–
on a substantial number of small entities 118, dated January 23, 2017. BILLING CODE 4910–13–P
under the criteria of the Regulatory (h) Parts Installation Prohibition
Flexibility Act.
After modification of an airplane as DEPARTMENT OF TRANSPORTATION
List of Subjects in 14 CFR Part 39 required by paragraph (g) of this AD, no
person may install a stall warning computer Federal Aviation Administration
Air transportation, Aircraft, Aviation having part number (P/N) 20AK5 or P/N
safety, Incorporation by reference, 0020AK5 on that airplane. 14 CFR Part 39
Safety.
(i) Other FAA AD Provisions [Docket No. FAA–2017–0776; Product
The Proposed Amendment The following provisions also apply to this Identifier 2017–NM–062–AD]
Accordingly, under the authority AD:
(1) Alternative Methods of Compliance RIN 2120–AA64
delegated to me by the Administrator,
(AMOCs): The Manager, International
the FAA proposes to amend 14 CFR part Airworthiness Directives; The Boeing
Section, Transport Standards Branch, FAA,
39 as follows: has the authority to approve AMOCs for this Company Airplanes
AD, if requested using the procedures found
PART 39—AIRWORTHINESS in 14 CFR 39.19. In accordance with 14 CFR AGENCY: Federal Aviation
DIRECTIVES 39.19, send your request to your principal Administration (FAA), DOT.
inspector or local Flight Standards District ACTION: Notice of proposed rulemaking
■ 1. The authority citation for part 39 Office, as appropriate. If sending information (NPRM).
continues to read as follows: directly to the International Section, send it
Authority: 49 U.S.C. 106(g), 40113, 44701. to the attention of the person identified in SUMMARY: We propose to adopt a new
paragraph (j)(2) of this AD. Information may airworthiness directive (AD) for certain
§ 39.13 [Amended] be emailed to: 9-ANM-116-AMOC- The Boeing Company Model 737–200,
■ 2. The FAA amends § 39.13 by adding REQUESTS@faa.gov. Before using any
approved AMOC, notify your appropriate
–300, –400, and –500 series airplanes.
the following new airworthiness principal inspector, or lacking a principal This proposed AD was prompted by
directive (AD): inspector, the manager of the local flight reports of cracks in the frame web
Saab AB, Saab Aeronautics (Formerly standards district office/certificate holding adjacent to the air-conditioning support
Known as Saab AB, Saab Aerosystems): district office. brackets. This proposed AD would
mstockstill on DSK30JT082PROD with PROPOSALS
Docket No. FAA–2017–0777; Product (2) Contacting the Manufacturer: For any require an inspection for any air
Identifier 2017–NM–050–AD. requirement in this AD to obtain corrective conditioning bracket assembly or
actions from a manufacturer, the action must intercostal, and depending on the
(a) Comments Due Date be accomplished using a method approved
by the Manager, International Section,
results, repetitive inspections for
We must receive comments by September
29, 2017. Transport Standards Branch, FAA; or the cracking of certain locations and
European Aviation Safety Agency (EASA); or applicable on-condition actions. We are
(b) Affected ADs Saab AB, Saab Aeronautics’s EASA Design proposing this AD to address the unsafe
None. Organization Approval (DOA). If approved by condition on these products.
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We have received no definitive data List of Subjects in 14 CFR Part 39 (h) Exceptions to Service Information
that would enable us to provide cost Specifications
Air transportation, Aircraft, Aviation
estimates for the on-condition actions safety, Incorporation by reference, (1) Where Boeing Alert Service Bulletin
specified in this proposed AD. 737–53A1363, dated April 7, 2017, uses the
Safety.
phrase ‘‘after the original issue date of this
Authority for This Rulemaking The Proposed Amendment service bulletin,’’ for purposes of determining
Title 49 of the United States Code compliance with the requirements of this AD,
Accordingly, under the authority the phrase ‘‘after the effective date of this
specifies the FAA’s authority to issue delegated to me by the Administrator, AD’’ applies.
rules on aviation safety. Subtitle I, the FAA proposes to amend 14 CFR part (2) Where Boeing Alert Service Bulletin
section 106, describes the authority of 39 as follows: 737–53A1363, dated April 7, 2017, specifies
the FAA Administrator. Subtitle VII: contacting Boeing, and specifies that action
Aviation Programs, describes in more PART 39—AIRWORTHINESS as RC: This AD requires using a method
detail the scope of the Agency’s DIRECTIVES approved in accordance with the procedures
authority. specified in paragraph (j) of this AD.
We are issuing this rulemaking under ■ 1. The authority citation for part 39 (i) Terminating Action for Repetitive
the authority described in Subtitle VII, continues to read as follows: Inspections
Part A, Subpart III, Section 44701: Authority: 49 U.S.C. 106(g), 40113, 44701. Accomplishment of a reinforcement repair
‘‘General requirements.’’ Under that at the stringer tie location in accordance with
section, Congress charges the FAA with § 39.13 [Amended] a method approved in accordance with the
promoting safe flight of civil aircraft in ■ 2. The FAA amends § 39.13 by adding procedures specified in paragraph (j) of this
air commerce by prescribing regulations the following new airworthiness AD terminates the repetitive inspections
for practices, methods, and procedures directive (AD): required by paragraph (g) of this AD for the
the Administrator finds necessary for repaired stringer tie location only, provided
The Boeing Company: Docket No. FAA– the crack is removed or trimmed out from the
safety in air commerce. This regulation 2017–0776; Product Identifier 2017– stringer tie holes.
is within the scope of that authority NM–062–AD.
because it addresses an unsafe condition (j) Alternative Methods of Compliance
(a) Comments Due Date (AMOCs)
that is likely to exist or develop on
products identified in this rulemaking We must receive comments by September (1) The Manager, Seattle ACO Branch,
29, 2017. FAA, has the authority to approve AMOCs
action.
This proposed AD is issued in (b) Affected ADs for this AD, if requested using the procedures
accordance with authority delegated by found in 14 CFR 39.19. In accordance with
None. 14 CFR 39.19, send your request to your
the Executive Director, Aircraft
(c) Applicability principal inspector or local Flight Standards
Certification Service, as authorized by District Office, as appropriate. If sending
FAA Order 8000.51C. In accordance This AD applies to The Boeing Company
information directly to the manager of the
with that order, issuance of ADs is Model 737–200, –300, –400, and –500 series
certification office, send it to the attention of
normally a function of the Compliance airplanes, certificated in any category, as
the person identified in paragraph (k)(1) of
identified in Boeing Alert Service Bulletin
and Airworthiness Division, but during 737–53A1363, dated April 7, 2017.
this AD. Information may be emailed to: 9-
this transition period, the Executive ANM-Seattle-ACO-AMOC-Requests@faa.gov.
Director has delegated the authority to (d) Subject (2) Before using any approved AMOC,
issue ADs applicable to transport Air Transport Association (ATA) of notify your appropriate principal inspector,
category airplanes to the Director of the America Code 53, Fuselage. or lacking a principal inspector, the manager
of the local flight standards district office/
System Oversight Division. (e) Unsafe Condition certificate holding district office.
Regulatory Findings This AD was prompted by reports of cracks (3) An AMOC that provides an acceptable
in the frame web adjacent to the air- level of safety may be used for any repair,
We determined that this proposed AD modification, or alteration required by this
conditioning support brackets. We are
would not have federalism implications issuing this AD to detect and correct cracks AD if it is approved by the Boeing
under Executive Order 13132. This in the frame web adjacent to the air- Commercial Airplanes Organization
proposed AD would not have a conditioning support brackets, which could Designation Authorization (ODA) that has
substantial direct effect on the States, on result in a severed frame, and in combination been authorized by the Manager, Seattle ACO
the relationship between the national with potential multiple site damage (MSD) at Branch, to make those findings. To be
Government and the States, or on the the stringer S–10 lap splice or chem-mill skin approved, the repair method, modification
cracks, could result in possible rapid deviation, or alteration deviation must meet
distribution of power and
decompression and loss of structural the certification basis of the airplane, and the
responsibilities among the various approval must specifically refer to this AD.
integrity of the airplane.
levels of government. (4) Except as required by paragraph (h)(2)
For the reasons discussed above, I (f) Compliance of this AD: For service information that
certify this proposed regulation: Comply with this AD within the contains steps that are labeled as RC, the
(1) Is not a ‘‘significant regulatory compliance times specified, unless already provisions of paragraphs (j)(4)(i) and (j)(4)(ii)
action’’ under Executive Order 12866, done. of this AD apply.
(2) Is not a ‘‘significant rule’’ under (i) The steps labeled as RC, including
(g) Required Actions substeps under an RC step and any figures
the DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, Except as required by paragraph (h) of this identified in an RC step, must be done to
mstockstill on DSK30JT082PROD with PROPOSALS
1979), AD: At the applicable times specified in comply with the AD. If a step or substep is
(3) Will not affect intrastate aviation paragraph 1.E., ‘‘Compliance,’’ of Boeing labeled ‘‘RC Exempt,’’ then the RC
Alert Service Bulletin 737–53A1363, dated requirement is removed from that step or
in Alaska, and April 7, 2017, do all applicable actions substep. An AMOC is required for any
(4) Will not have a significant identified as ‘‘RC’’ (required for compliance) deviations to RC steps, including substeps
economic impact, positive or negative, in, and in accordance with, the and identified figures.
on a substantial number of small entities Accomplishment Instructions of Boeing Alert (ii) Steps not labeled as RC may be
under the criteria of the Regulatory Service Bulletin 737–53A1363, dated April 7, deviated from using accepted methods in
Flexibility Act. 2017. accordance with the operator’s maintenance
VerDate Sep<11>2014 16:14 Aug 14, 2017 Jkt 241001 PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 E:\FR\FM\15AUP1.SGM 15AUP1](https://thefederalregister.org/doc/82_FR_38779/page/3.svg)
![38626 Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules
or inspection program without obtaining We are proposing this AD to address the 2017–0775; Product Identifier 2017–
approval of an AMOC, provided the RC steps, unsafe condition on these products. NM–048–AD’’ at the beginning of your
including substeps and identified figures, can comments. We specifically invite
DATES: We must receive comments on
still be done as specified, and the airplane comments on the overall regulatory,
can be put back in an airworthy condition. this proposed AD by September 29,
2017. economic, environmental, and energy
(k) Related Information aspects of this proposed AD. We will
ADDRESSES: You may send comments,
(1) For more information about this AD, consider all comments received by the
using the procedures found in 14 CFR
contact Alan Pohl, Aerospace Engineer, closing date and may amend this
Airframe Section, FAA, Seattle ACO Branch,
11.43 and 11.45, by any of the following
proposed AD based on those comments.
1601 Lind Avenue SW., Renton, WA 98057– methods: We will post all comments we
3356; phone: 425–917–6450; fax: 425–917– • Federal eRulemaking Portal: Go to
receive, without change, to http://
6590; email: alan.pohl@faa.gov. http://www.regulations.gov. Follow the
www.regulations.gov, including any
(2) For service information identified in instructions for submitting comments.
• Fax: 202–493–2251. personal information you provide. We
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data • Mail: U.S. Department of will also post a report summarizing each
Services (C&DS), 2600 Westminster Blvd., Transportation, Docket Operations, M– substantive verbal contact we receive
MC 110–SK57, Seal Beach, CA 90740–5600; 30, West Building Ground Floor, Room about this proposed AD.
telephone 562–797–1717; Internet https:// W12–140, 1200 New Jersey Avenue SE., Discussion
www.myboeingfleet.com. You may view this Washington, DC 20590.
referenced service information at the FAA, On December 2, 2016, we issued AD
• Hand Delivery: Deliver to Mail
Transport Standards Branch, 1601 Lind 2016–25–18, Amendment 39–18744 (81
Avenue SW., Renton, WA. For information address above between 9 a.m. and 5
FR 90961, December 16, 2016) (‘‘AD
on the availability of this material at the p.m., Monday through Friday, except
2016–25–18’’), for certain Bombardier,
FAA, call 425–227–1221. Federal holidays.
Inc., Model BD–700–1A10 and BD–700–
For service information identified in
Issued in Renton, Washington, on August 1A11 airplanes. AD 2016–25–18 was
2, 2017.
this NPRM, contact Bombardier, Inc.,
prompted by a report indicating that
400 Côte-Vertu Road West, Dorval,
Jeffrey E. Duven, during maintenance, an engine mount
Québec H4S 1Y9, Canada; telephone
Director, System Oversight Division, Aircraft pin was found backed out of the rear
514–855–5000; fax 514–855–7401; email
Certification Service. mount link, and the associated retaining
thd.crj@aero.bombardier.com; Internet
[FR Doc. 2017–16780 Filed 8–14–17; 8:45 am] bolt was also found fractured. AD 2016–
http://www.bombardier.com. You may
BILLING CODE 4910–13–P 25–18 requires an inspection for
view this referenced service information
discrepancies of the attachment points
at the FAA, Transport Standards
of the links between the engine rear
Branch, 1601 Lind Avenue SW., Renton,
DEPARTMENT OF TRANSPORTATION mount assemblies, and corrective
WA. For information on the availability
actions if necessary. We issued AD
Federal Aviation Administration of this material at the FAA, call 425–
2016–25–18 to detect and correct broken
227–1221.
engine attachment hardware, which
14 CFR Part 39 Examining the AD Docket could result in separation of an engine
You may examine the AD docket on from the airplane.
[Docket No. FAA–2017–0775; Product
the Internet at http:// Since we issued AD 2016–25–18, we
Identifier 2017–NM–048–AD]
www.regulations.gov by searching for have determined that replacement of
RIN 2120–AA64 and locating Docket No. FAA–2017– certain nuts and bolts in the engine rear
0775; or in person at the Docket mount assemblies is necessary.
Airworthiness Directives; Bombardier, Transport Canada Civil Aviation
Management Facility between 9 a.m.
Inc., Airplanes (TCCA), which is the aviation authority
and 5 p.m., Monday through Friday,
for Canada, has issued Canadian AD
AGENCY: Federal Aviation except Federal holidays. The AD docket
CF–2016–23R1, dated February 20, 2017
Administration (FAA), DOT. contains this proposed AD, the
(referred to after this as the Mandatory
ACTION: Notice of proposed rulemaking
regulatory evaluation, any comments
Continuing Airworthiness Information,
(NPRM). received, and other information. The
or ’’the MCAI’’), to correct an unsafe
street address for the Docket Operations
condition for certain Bombardier, Inc.,
SUMMARY: We propose to supersede office (telephone 800–647–5527) is in
Model BD–700–1A10 and BD–700–
Airworthiness Directive (AD) 2016–25– the ADDRESSES section. Comments will
1A11 airplanes. The MCAI states:
18, for certain Bombardier, Inc., Model be available in the AD docket shortly
BD–700–1A10 and BD–700–1A11 after receipt. Bombardier reported that during
airplanes. AD 2016–25–18 requires an maintenance of a BD–700 aeroplane, the
FOR FURTHER INFORMATION CONTACT: Aziz
engine mount pin, part number (P/N)
inspection for discrepancies of the Ahmed, Airframe Engineer, Airframe BRR15838, was found backed out of the rear
attachment points of the links between and Mechanical Systems Section, FAA, mount link. The retaining bolt, P/N AS54020,
the engine rear mount assemblies, and New York ACO Branch, 1600 Stewart which passes through the engine mount pin
corrective actions if necessary. Since we Avenue, Suite 410, Westbury, NY was also found fractured at the groove which
issued AD 2016–25–18, we have 11590; telephone: 516–228–7329; fax: holds the locking spring. An investigation
determined that replacement of certain 516–794–5531. revealed the most probable root cause of
mstockstill on DSK30JT082PROD with PROPOSALS
nuts and bolts in the engine rear mount SUPPLEMENTARY INFORMATION: failure to be a single axial tension static
assemblies is necessary. This proposed overload, with no evidence of fatigue
AD would require an inspection of Comments Invited contributing to the failure.
The above condition if not detected, may
certain attachment points, corrective We invite you to send any written result in the loss of engine attachment to the
action if necessary, and replacement of relevant data, views, or arguments about airframe.
certain bolts and nuts in the engine rear this proposal. Send your comments to As an interim corrective action,
mount assemblies. This proposed AD an address listed under the ADDRESSES Bombardier issued Service Bulletins (SBs)
also adds airplanes to the applicability. section. Include ‘‘Docket No. FAA– 700–71–002, 700–71–6002, 700–71–5002,
VerDate Sep<11>2014 16:14 Aug 14, 2017 Jkt 241001 PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 E:\FR\FM\15AUP1.SGM 15AUP1](https://thefederalregister.org/doc/82_FR_38779/page/4.svg)
Document Created: 2017-08-15 01:12:34
Document Modified: 2017-08-15 01:12:34
| 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 September 29, 2017. | |
| Contact | Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 425-917-6590; email: [email protected] | |
| FR Citation | 82 FR 38623 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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