Airworthiness Directives; The Boeing Company Airplanes, 41179-41182 [2017-18389]

Download as PDF 41179 Proposed Rules Federal Register Vol. 82, No. 167 Wednesday, August 30, 2017 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF ENERGY 10 CFR Part 431 [EERE–2017–BT–TP–0047] Energy Conservation Program: Test Procedure for Small Electric Motors and Electric Motors Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Request for information; extension of public comment period. AGENCY: On July 31, 2017, the U.S. Department of Energy (DOE) published a request for information (RFI) pertaining to the test procedures for small electric motors and electric motors. The notice provided an opportunity for submitting written comments, data, and information by August 30, 2017. This document announces an extension of the comment period until September 13, 2017. DATES: The comment period for the RFI, published on July 31, 2017 (82 FR 35468), is extended. DOE will accept written comments, data, and information in response to the RFI received no later than September 13, 2017. SUMMARY: Interested persons are encouraged to submit comments by any of the following methods: • Federal eRulemaking Portal: www.regulations.gov. Follow the instructions for submitting comments. • Email: SmallElectricMotors2017TP0047@ ee.doe.gov. Include docket number EERE–2017–BT–TP–0047 in the subject line of the message. Submit electronic comments in WordPerfect, Microsoft Word, PDF, or ASCII file format, and avoid the use of special characters or any form of encryption. • Postal Mail: Appliance and Equipment Standards Program, U.S. Department of Energy, Building Technologies Office, Mailstop EE–5B, 1000 Independence Avenue SW., Washington, DC 20585–0121. If mstockstill on DSK30JT082PROD with PROPOSALS ADDRESSES: VerDate Sep<11>2014 18:16 Aug 29, 2017 Jkt 241001 possible, please submit all items on a compact disc (CD), in which case it is not necessary to include printed copies. • Hand Delivery/Courier: Appliance and Equipment Standards Program, U.S. Department of Energy, Building Technologies Office, 950 L’Enfant Plaza SW., 6th Floor, Washington, DC 20024. Telephone: (202) 287–1445. If possible, please submit all items on a CD, in which case it is not necessary to include printed copies. No telefacsimilies (faxes) will be accepted. For detailed instructions on submitting comments and additional information on the rulemaking process, see section III of this document. Docket: The docket for this activity, which includes Federal Register notices, comments, and other supporting documents/materials, is available for review at http:// www.regulations.gov. All documents in the docket are listed in the http:// www.regulations.gov index. However, some documents listed in the index, such as those containing information that is exempt from public disclosure, may not be publicly available. The docket Web page can be found at http://www.regulations.gov/#!docket Detail;D=EERE-2017-BT-TP-0047. The docket Web page will contain simple instructions on how to access all documents, including public comments, in the docket. See section III for information on how to submit comments through http:// www.regulations.gov. FOR FURTHER INFORMATION CONTACT: Mr. Jeremy Dommu, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, EE–5B 1000 Independence Avenue SW., Washington, DC 20585–0121. Telephone: (202) 586–9870. Email: ApplianceStandardsQuestions@ ee.doe.gov. Mary Greene, U.S. Department of Energy, Office of the General Counsel, GC–33, 1000 Independence Avenue SW., Washington, DC 20585–0121. Telephone: (202) 586–1817. Email: mary.greene@hq.doe.gov. For further information on how to submit a comment, review other public comments and the docket, contact the Appliance and Equipment Standards Program staff at (202) 287–1445 or by email: ApplianceStandardsQuestions@ ee.doe.gov. PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 DOE published a RFI pertaining to the test procedure for small electric motors and electric motors on July 31, 2017. 82 FR 35468. The RFI initiated a data collection process to consider whether to amend DOE’s test procedures for small electric motors and electric motors, and whether new test procedures are needed for motors beyond those subject to the existing Federal test procedures. DOE requested written comment, data, and information pertaining to these test procedures by August 30, 2017. The National Electrical Manufacturers Association (NEMA), an interested party in the matter, requested a two-week extension of the public comment period for the RFI published in the Federal Register on August 17, 2017. (NEMA, No. 6, at p. 1) DOE believes that extending the comment period to allow additional time for interested parties to submit comments is appropriate. Therefore, DOE is extending the comment period until September 13, 2017 to provide interested parties additional time to prepare and submit comments. Accordingly, DOE will consider any comments received by September 13, 2017 to be timely submitted. SUPPLEMENTARY INFORMATION: Issued in Washington, DC, on August 23, 2017. Kathleen B. Hogan, Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and Renewable Energy. [FR Doc. 2017–18408 Filed 8–29–17; 8:45 am] BILLING CODE 6450–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2017–0807; Product Identifier 2017–NM–080–AD] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for all The SUMMARY: E:\FR\FM\30AUP1.SGM 30AUP1 41180 Federal Register / Vol. 82, No. 167 / Wednesday, August 30, 2017 / Proposed Rules Boeing Company Model 737–100, –200, –200C, –300, –400, and –500 series airplanes. This proposed AD was prompted by reports of cracking in the webs of the stub beams at certain fuselage stations. These cracks are the result of fatigue caused by cyclical loading from pressurization, wing loads, and landing loads. This proposed AD would require repetitive inspections for cracking of the webs of the stub beams at certain fuselage stations, and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by October 16, 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–2017–0807. mstockstill on DSK30JT082PROD with PROPOSALS 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– 0807; 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: Galib Abumeri, Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712–4137; phone: 562–627–5324; fax: 562–627– 5210; email: galib.abumeri@faa.gov. 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– 2017–0807; Product Identifier 2017– NM–080–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 cracking in the webs of the stub beams at fuselage station (STA) 685, STA 695, and STA 706. These cracks are a result of fatigue caused by cyclical loading from pressurization, wing loads, and landing loads. Cracks have occurred in the stub beam webs at STA 685 on the left and right sides of airplanes, with total flight cycles ranging between 21,673 and 45,892 at the time of the crack finding. Cracks have occurred in the stub beam webs at STA 695 on the left and right sides of airplanes, with total flight cycles ranging between 49,572 and 56,712 at the time of crack findings. Cracks have also occurred in the stub beam webs at STA 706 on the left and right sides of airplanes with total flight cycles ranging between 12,017 and 64,392 at the time of crack findings. Cracking in the stub beam webs at certain fuselage stations, if not corrected, could result in the loss of structural integrity of the airframe during flight, collapse of the main landing gear, and failure of the pressure deck. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017. The service information describes procedures for doing high frequency eddy current and detailed inspections for cracking of the fuselage stub beam webs below the passenger floor at STA 685, STA 695, and STA 706, 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 designs. 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 737–53A1364, dated May 24, 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– 0807. Costs of Compliance We estimate that this proposed AD affects 160 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: ESTIMATED COSTS Action Labor cost Inspections .. Up to 13 work-hours × $85 per hour = $1,105 per inspection cycle. VerDate Sep<11>2014 18:16 Aug 29, 2017 Jkt 241001 Parts cost PO 00000 Cost per product $0 Frm 00002 Cost on U.S. operators Up to $1,105 per inspection cycle .. Up to $176,800 per inspection cycle. Fmt 4702 Sfmt 4702 E:\FR\FM\30AUP1.SGM 30AUP1 Federal Register / Vol. 82, No. 167 / Wednesday, August 30, 2017 / Proposed Rules List of Subjects in 14 CFR Part 39 We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this proposed AD. mstockstill on DSK30JT082PROD with PROPOSALS 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. VerDate Sep<11>2014 18:16 Aug 29, 2017 Jkt 241001 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 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– 2017–0807; Product Identifier 2017– NM–080–AD. (a) Comments Due Date We must receive comments by October 16, 2017. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 737–100, –200, –200C, –300, –400, and –500 series airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by reports of cracking in the webs of the stub beams at certain fuselage stations. These cracks are the result of fatigue caused by cyclical loading from pressurization, wing loads, and landing loads. We are issuing this AD to detect and correct cracking in the webs of the stub beams at certain fuselage stations, which if not corrected, could result in the loss of structural integrity of the airframe during flight, collapse of the main landing gear, and failure of the pressure deck. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions for Group 1 Airplanes For airplanes identified as Group 1 in Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017, within 120 days after the effective date of this AD, inspect the stub beam webs for any cracking, and do all applicable on-condition actions, using a method approved in accordance with the procedures specified in paragraph (j) of this AD. PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 41181 (h) Required Actions for Group 2, 3, 4, 5, and 6 Airplanes Except as required by paragraph (i) of this AD: For Group 2, 3, 4, 5, and 6 airplanes as identified in Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017: At the applicable times specified in paragraph 1.E., ‘‘Compliance,’’ of Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017, do all applicable actions identified as ‘‘RC’’ (required for compliance) in, and in accordance with, the Accomplishment Instructions of Boeing Service Bulletin Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017. (i) Exceptions to Service Information Specifications (1) For purposes of determining compliance with the requirements of this AD, the phrase ‘‘the effective date of this AD’’ may be substituted for ‘‘the original issue date of this service bulletin,’’ which is specified in Boeing Alert Service Bulletin 737–53A1364, dated May 24, 2017. (2) Where Boeing Alert Service Bulletin 737–53A1364, dated May 24, 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. (j) 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 (k)(1) of this AD. Information may be emailed to: 9ANM-LAAC-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Los Angeles 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 (i)(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. E:\FR\FM\30AUP1.SGM 30AUP1 41182 Federal Register / Vol. 82, No. 167 / Wednesday, August 30, 2017 / Proposed Rules (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. No. 17–AWP–11 at the beginning of your comments. You may also submit comments through the Internet at http:// www.regulations.gov. You may review the public docket containing the proposal, any comments received, and any final disposition in person in the Dockets Office between 9:00 a.m. and (k) Related Information 5:00 p.m., Monday through Friday, (1) For more information about this AD, except Federal holidays. The Docket contact Galib Abumeri, Aerospace Engineer, Office (telephone 1 (800) 647–5527), is Airframe Section, FAA, Los Angeles ACO on the ground floor of the building at Branch, 3960 Paramount Boulevard, the above address. Lakewood, CA 90712–4137; phone: 562–627– FAA Order 7400.11A, Airspace 5324; fax: 562–627–5210; email: Designations and Reporting Points, and galib.abumeri@faa.gov. (2) For service information identified in subsequent amendments can be viewed this AD, contact Boeing Commercial online at http://www.faa.gov/air_traffic/ Airplanes, Attention: Contractual & Data publications/. For further information, Services (C&DS), 2600 Westminster Blvd., you can contact the Airspace Policy MC 110–SK57, Seal Beach, CA 90740–5600; Group, Federal Aviation telephone 562–797–1717; Internet: https:// Administration, 800 Independence www.myboeingfleet.com. You may view this Avenue SW., Washington, DC 20591; referenced service information at the FAA, telephone: (202) 267–8783. The Order is Transport Standards Branch, 1601 Lind also available for inspection at the Avenue SW., Renton, WA. For information on the availability of this material at the National Archives and Records FAA, call 425–227–1221. Administration (NARA). For information on the availability of FAA Issued in Renton, Washington, on August Order 7400.11A at NARA, call (202) 22, 2017. 741–6030, or go to http:// Dionne Palermo, www.archives.gov/federal_register/ Acting Director, System Oversight Division, code_of_federal-regulations/ibr_ Aircraft Certification Service. locations.html. [FR Doc. 2017–18389 Filed 8–29–17; 8:45 am] FAA Order 7400.11, Airspace BILLING CODE 4910–13–P Designations and Reporting Points, is published yearly and effective on DEPARTMENT OF TRANSPORTATION September 15. FOR FURTHER INFORMATION CONTACT: Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2017–0344; Airspace Docket No. 17–AWP–11] Proposed Modification of Air Traffic Service (ATS) Routes; Western United States Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: This action proposes to modify VOR Federal Airways V–113 and V–244 which caused navigational aid gaps due to the decommissioning of Manteca and Maxwell VORs. DATES: Comments must be received on or before October 16, 2017. ADDRESSES: Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, 1200 New Jersey Avenue SE., West Building Ground Floor, Room W12–140, Washington, DC 20590; telephone: 1 (800) 647–5527, or (202) 366–9826. You must identify FAA Docket No. FAA–2017–0344 and Airspace Docket mstockstill on DSK30JT082PROD with PROPOSALS SUMMARY: VerDate Sep<11>2014 18:16 Aug 29, 2017 Jkt 241001 Kenneth Ready, Airspace Policy Group, Office of Airspace Services, Federal Aviation Administration, 800 Independence Avenue SW., Washington, DC 20591; telephone: (202) 267–8783. SUPPLEMENTARY INFORMATION: Authority for This Rulemaking The FAA’s authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. Subtitle I, Section 106 describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the agency’s authority. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of the airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This regulation is within the scope of that authority as it modifies the route structure as necessary to preserve the safe and efficient flow of air traffic within the National Airspace System (NAS). PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 Comments Invited Interested parties are invited to participate in this proposed rulemaking by submitting such written data, views, or arguments as they may desire. Comments that provide the factual basis supporting the views and suggestions presented are particularly helpful in developing reasoned regulatory decisions on the proposal. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. Communications should identify both docket numbers (FAA Docket No. FAA– 2017–0344 and Airspace Docket No. 17– AWP–11) and be submitted in triplicate to the Docket Management Facility (see ADDRESSES section for address and phone number). You may also submit comments through the Internet at http:// www.regulations.gov. Commenters wishing the FAA to acknowledge receipt of their comments on this action must submit with those comments a self-addressed, stamped postcard on which the following statement is made: ‘‘Comments to FAA Docket No. FAA–2017–0344, and Airspace Docket No. 17–AWP–11.’’ The postcard will be date/time stamped and returned to the commenter. All communications received on or before the specified comment closing date will be considered before taking action on the proposed rule. The proposal contained in this action may be changed in light of comments received. All comments submitted will be available for examination in the public docket both before and after the comment closing date. 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 http://www.regulations.gov. Recently published rulemaking documents can also be accessed through the FAA’s Web page at http:// 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 ADDRESSES section for 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 during normal business hours at the office of the Western Service Center, Operations E:\FR\FM\30AUP1.SGM 30AUP1

Agencies

[Federal Register Volume 82, Number 167 (Wednesday, August 30, 2017)]
[Proposed Rules]
[Pages 41179-41182]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-18389]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0807; Product Identifier 2017-NM-080-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

[[Page 41180]]

Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series 
airplanes. This proposed AD was prompted by reports of cracking in the 
webs of the stub beams at certain fuselage stations. These cracks are 
the result of fatigue caused by cyclical loading from pressurization, 
wing loads, and landing loads. This proposed AD would require 
repetitive inspections for cracking of the webs of the stub beams at 
certain fuselage stations, and applicable on-condition actions. We are 
proposing this AD to address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by October 16, 
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-2017-0807.

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-
0807; 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: Galib Abumeri, Aerospace Engineer, 
Airframe Section, FAA, Los Angeles ACO Branch, 3960 Paramount 
Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5324; fax: 562-627-
5210; email: galib.abumeri@faa.gov.

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-2017-0807; 
Product Identifier 2017-NM-080-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 cracking in the webs of the stub beams 
at fuselage station (STA) 685, STA 695, and STA 706. These cracks are a 
result of fatigue caused by cyclical loading from pressurization, wing 
loads, and landing loads.
    Cracks have occurred in the stub beam webs at STA 685 on the left 
and right sides of airplanes, with total flight cycles ranging between 
21,673 and 45,892 at the time of the crack finding. Cracks have 
occurred in the stub beam webs at STA 695 on the left and right sides 
of airplanes, with total flight cycles ranging between 49,572 and 
56,712 at the time of crack findings. Cracks have also occurred in the 
stub beam webs at STA 706 on the left and right sides of airplanes with 
total flight cycles ranging between 12,017 and 64,392 at the time of 
crack findings.
    Cracking in the stub beam webs at certain fuselage stations, if not 
corrected, could result in the loss of structural integrity of the 
airframe during flight, collapse of the main landing gear, and failure 
of the pressure deck.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-53A1364, dated May 
24, 2017. The service information describes procedures for doing high 
frequency eddy current and detailed inspections for cracking of the 
fuselage stub beam webs below the passenger floor at STA 685, STA 695, 
and STA 706, 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 designs.

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 737-53A1364, dated May 
24, 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-2017-0807.

Costs of Compliance

    We estimate that this proposed AD affects 160 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.............  Up to 13                            $0  Up to $1,105 per        Up to $176,800 per
                           work[dash]hours x $85                   inspection cycle.       inspection cycle.
                           per hour = $1,105 per
                           inspection cycle.
----------------------------------------------------------------------------------------------------------------


[[Page 41181]]

    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-2017-0807; Product Identifier 
2017-NM-080-AD.

(a) Comments Due Date

    We must receive comments by October 16, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all The Boeing Company Model 737-100, -200, -
200C, -300, -400, and -500 series airplanes, certificated in any 
category.

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Unsafe Condition

    This AD was prompted by reports of cracking in the webs of the 
stub beams at certain fuselage stations. These cracks are the result 
of fatigue caused by cyclical loading from pressurization, wing 
loads, and landing loads. We are issuing this AD to detect and 
correct cracking in the webs of the stub beams at certain fuselage 
stations, which if not corrected, could result in the loss of 
structural integrity of the airframe during flight, collapse of the 
main landing gear, and failure of the pressure deck.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions for Group 1 Airplanes

    For airplanes identified as Group 1 in Boeing Alert Service 
Bulletin 737-53A1364, dated May 24, 2017, within 120 days after the 
effective date of this AD, inspect the stub beam webs for any 
cracking, and do all applicable on-condition actions, using a method 
approved in accordance with the procedures specified in paragraph 
(j) of this AD.

(h) Required Actions for Group 2, 3, 4, 5, and 6 Airplanes

    Except as required by paragraph (i) of this AD: For Group 2, 3, 
4, 5, and 6 airplanes as identified in Boeing Alert Service Bulletin 
737-53A1364, dated May 24, 2017: At the applicable times specified 
in paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 
737-53A1364, dated May 24, 2017, do all applicable actions 
identified as ``RC'' (required for compliance) in, and in accordance 
with, the Accomplishment Instructions of Boeing Service Bulletin 
Boeing Alert Service Bulletin 737-53A1364, dated May 24, 2017.

(i) Exceptions to Service Information Specifications

    (1) For purposes of determining compliance with the requirements 
of this AD, the phrase ``the effective date of this AD'' may be 
substituted for ``the original issue date of this service 
bulletin,'' which is specified in Boeing Alert Service Bulletin 737-
53A1364, dated May 24, 2017.
    (2) Where Boeing Alert Service Bulletin 737-53A1364, dated May 
24, 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.

(j) 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 (k)(1) of this AD. Information 
may be emailed to: 9-ANM-LAAC-AMOC-Requests@faa.gov.
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Los Angeles 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 (i)(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.

[[Page 41182]]

    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(k) Related Information

    (1) For more information about this AD, contact Galib Abumeri, 
Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 
3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-
5324; fax: 562-627-5210; email: galib.abumeri@faa.gov.
    (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 22, 2017.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-18389 Filed 8-29-17; 8:45 am]
BILLING CODE 4910-13-P