Airworthiness Directives; The Boeing Company Airplanes, 30958-30961 [2019-13672]

Download as PDF 30958 Federal Register / Vol. 84, No. 125 / Friday, June 28, 2019 / Proposed Rules valve (OBV). The FAA is issuing this AD to prevent failure of the OBV. The unsafe condition, if not addressed, could result in engine fire and damage to the airplane. khammond on DSKBBV9HB2PROD with PROPOSALS (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) For CF34–8C1, CF34–8C5, CF34– 8C5A1, and CF34–8C5B1 model turbofan engines with serial numbers (S/Ns): 965101 through 965670 inclusive; 194101 through 194999 inclusive; and 195101 through 195653 inclusive: (i) Perform an inspection of the OBV bleed air manifold link rod assemblies and the OBV fuel fittings within 500 flight hours after November 30, 2017 (effective date of AD 2017–23–06), or before next flight after the effective date of this AD, whichever occurs later. (ii) Within 880 flight hours since the previous inspection, 500 flight hours from the effective date of this AD, or 6,880 flight hours since new, whichever occurs later, inspect the OBV bleed air manifold link rod assemblies, the OBV fuel fittings, and the OBV fuel tubes. (iii) Thereafter, perform additional repeat inspections of the OBV bleed air manifold link rod assemblies, the OBV fuel fittings, and the OBV fuel tubes within every 880 flight hours since the previous inspection. (iv) Use the Accomplishment Instructions, Paragraph 3.B., of GE CF34–8C–AL S/B 75– 0020, R04, dated May 10, 2019 (‘‘the SB’’), to perform the inspections in paragraphs (g)(1)(i) through (iii) of this AD and, per the criteria for the results of inspections in Paragraph 3.B. of the SB, do the following: (A) Replace any OBV or fuel tube that is leaking and tighten or replace any loose OBV fuel tube clamps with a part eligible for installation before further flight. (B) Replace any worn OBV link rod assembly hardware within 50 flight cycles after the inspection required by paragraphs (g)(1)(i), (g)(1)(ii), or (g)(1)(iii) of this AD. The engine can be returned to service each day for up to the 50 flight cycles if the OBV fittings are inspected each day for fuel leaks and looseness and, if they do not require removal based on the criteria in Table 1, ‘‘OBV Inspection,’’ of GE SB CF34–8C–AL S/ B 75–0020, R04, dated May 10, 2019. (2) For CF34–8C5B1 model turbofan engines with S/Ns not listed in paragraph (g)(1) of this AD and for all CF34–8C5A2 and CF34–8C5A3 model turbofan engines, perform the following: (i) For engines with 6,000 flight hours or more since new on the effective date of this AD, perform an initial inspection of the OBV bleed air manifold link rod assemblies, OBV fuel fittings, and OBV fuel tubes within 880 flight hours after the effective date of this AD. (ii) For engines with less than 6,000 flights hours since new on the effective date of this AD, perform an initial inspection of the OBV bleed air manifold link rod assemblies, OBV fuel fittings, and OBV fuel tubes within 880 flight hours time in service or 6,880 flight hours since new, whichever occurs later. VerDate Sep<11>2014 16:43 Jun 27, 2019 Jkt 247001 (iii) Thereafter, repeat the inspection of the OBV bleed air manifold link rod assemblies, OBV fuel fittings, and OBV fuel tubes within 880 flight hours since the last inspection. (iv) Use the Accomplishment Instructions, Paragraph 3.B., of GE CF34–8C–AL S/B 75– 0020, R04, dated May 10, 2019, to perform the inspections in paragraphs (g)(2)(i) through (iii) of this AD. (v) Replace any parts according to the criteria in paragraph (g)(1)(iv) of this AD after the inspection required by paragraphs (g)(2)(i), (g)(2)(ii), or (g)(2)(iii) of this AD. (3) For all affected engines, the reporting instructions in GE SB CF34–8C–AL S/B 75– 0020, R04, dated May 10, 2019, are not required by this AD. (h) Credit for Previous Actions (1) For engines identified in paragraph (g)(1) of this AD, you may take credit for the inspection of the OBV bleed air manifold link rod assemblies and the OBV fuel fittings required by paragraph (g)(1)(i) of this AD if you performed this inspection before November 30, 2017 (the effective date of AD 2017–23–06) using GE SB CF34–8C SB 75– 0019, Revision 01, dated October 24, 2017, or R00, dated August 4, 2017; (2) For all affected engines, you may take credit for the inspection of the OBV bleed air manifold link rod assemblies and the OBV fuel fittings required by paragraph (g)(1)(i) or (g)(2)(i) of this AD if you performed this inspection before the effective date of this AD using GE SB CF34–8C SB 75–0020, Revision 03, dated December 14, 2018. (3) You are still required to perform the repeat inspections and any replacements, as needed, required by paragraphs (g)(1)(ii) through (g)(1)(iv) of this AD. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j) of this AD. You may email your request to: ANE-AD-AMOC@ 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. (j) Related Information (1) For more information about this AD, contact Michael Richardson-Bach, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781– 238–7747; fax: 781–238–7199; email: michael.richardson-bach@faa.gov. (2) For service information identified in this AD, contact General Electric Company, GE-Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215, phone: 513–552–3272; fax: 513–552–3329; email: geae.aoc@ge.com. You may view this service information at the FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 MA. For information on the availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on June 24, 2019. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2019–13761 Filed 6–27–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2019–0438; Product Identifier 2019–NM–033–AD] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This proposed AD was prompted by a report that during a maintenance check an operator discovered cracking in the station 1460 frame web and inner chord between certain stringers. This proposed AD would require an inspection of the fuselage frames for any existing repair, repetitive surface high frequency eddy current (HFEC) inspections of the fuselage frames with a cargo liner support channel for any cracking, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by August 12, 2019. SUMMARY: 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 ADDRESSES: E:\FR\FM\28JNP1.SGM 28JNP1 30959 Federal Register / Vol. 84, No. 125 / Friday, June 28, 2019 / Proposed Rules khammond on DSKBBV9HB2PROD with PROPOSALS FAA’s Determination Discussion 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–2019– 0438; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Peter Jarzomb, Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712–4137; phone: 562–627–5234; fax: 562–627– 5210; email: peter.jarzomb@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2019–0438; Product Identifier 2019–NM–033–AD’’ at the beginning of your comments. The FAA specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. The FAA will consider all comments received by the closing date and may amend this NPRM because of those comments. The FAA will post all comments, without change, to http:// www.regulations.gov, including any personal information you provide. The course of business or by the means identified in the ADDRESSES section. FAA will also post a report summarizing each substantive verbal contact the agency receives about this proposed AD. 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–2019–0438. The FAA has received a report indicating that an operator found cracking of the aft cargo compartment frames in the station 1460 frame web and inner chord between stringers S–26 and S–27 near an existing repair. The crack initiated at the fastener hole common to the cargo liner support channel, and was found near an existing structural repair manual (SRM) repair. Primer was discovered in the crack, indicating that the crack already existed at the time the SRM repair was installed. The crack was discovered at 82,227 total flight hours and 37,450 total flight cycles, and was the result of fatigue caused by cyclic pressurization of the fuselage and flight loads. This condition, if not addressed, could allow cracks to propagate until they cause a severed frame, which could result in additional undetected cracking in adjacent fuselage frames, and could ultimately result in reduced structural integrity of the aft cargo frames and consequent rapid decompression of the airplane. Related Service Information Under 1 CFR Part 51 The FAA reviewed Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019. The service information describes procedures for a general visual inspection of the fuselage frames with a cargo liner support channel for any existing repair, repetitive surface HFEC inspections of the fuselage frames with a cargo liner support channel for any cracking, and applicable on-condition actions. On-condition actions include a general visual inspection of the fuselage frames adjacent to the frame with a severed inner chord for any existing repair, a detailed inspection and a surface HFEC inspection of the fuselage frames adjacent to a frame with a severed inner chord for any cracking, and repair. This service information is reasonably available because the interested parties have access to it through their normal The FAA is proposing this AD because the FAA evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would require accomplishment of the actions identified in Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019, described previously, except for any differences identified as exceptions in the regulatory text of this proposed AD. For information on the procedures and compliance times, see this service information at http:// www.regulations.gov by searching for and locating Docket No. FAA–2019– 0438. Explanation of Requirements Bulletin The FAA worked in conjunction with industry, under the Airworthiness Directive Implementation Aviation Rulemaking Committee (AD ARC), to enhance the AD system. One enhancement is a process for annotating which steps in the service information are ‘‘required for compliance’’ (RC) with an AD. Boeing has implemented this RC concept into Boeing service bulletins. In an effort to further improve the quality of ADs and AD-related Boeing service information, a joint process improvement initiative was worked between the FAA and Boeing. The initiative resulted in the development of a new process in which the service information more clearly identifies the actions needed to address the unsafe condition in the ‘‘Accomplishment Instructions.’’ The new process results in a Boeing Requirements Bulletin, which contains only the actions needed to address the unsafe condition (i.e., only the RC actions). Costs of Compliance The FAA estimates that this proposed AD affects 544 airplanes of U.S. registry. The FAA estimates the following costs to comply with this proposed AD: ESTIMATED COSTS FOR REQUIRED ACTIONS Action General visual inspection. VerDate Sep<11>2014 Labor cost Parts cost 37 work-hours × $85 per hour = $3,145 ............ 16:43 Jun 27, 2019 Jkt 247001 PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 Cost per product $0 $3,145 .......................... E:\FR\FM\28JNP1.SGM 28JNP1 Cost on U.S. operators $1,710,880. 30960 Federal Register / Vol. 84, No. 125 / Friday, June 28, 2019 / Proposed Rules ESTIMATED COSTS FOR REQUIRED ACTIONS—Continued Action Labor cost Repetitive surface HFEC inspections. Up to 37 work-hours × $85 per hour = Up to $3,145 per inspection cycle. The FAA estimates the following costs to do any necessary on-condition Parts cost Cost per product 0 Up to $3,145 per inspection cycle. inspections that would be required. The FAA has no way of determining the Cost on U.S. operators Up to $1,710,880 per inspection cycle. number of aircraft that might need these on-condition inspections: ESTIMATED COSTS OF ON-CONDITION ACTIONS Labor cost Parts cost Up to 20 work-hour × $85 per hour = Up to $1,700 per inspection cycle ................... khammond on DSKBBV9HB2PROD with PROPOSALS The FAA has received no definitive data that would enable us to provide cost estimates for the on-condition repair specified in this proposed AD. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency’s authority. The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: ‘‘General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. 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 and associated appliances to the Director of the System Oversight Division. Regulatory Findings The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the VerDate Sep<11>2014 16:43 Jun 27, 2019 Jkt 247001 $0 national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 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– 2019–0438; Product Identifier 2019– NM–033–AD. (a) Comments Due Date The FAA must receive comments by August 12, 2019. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 757–200, –200PF, –200CB, PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 Cost per product Up to $1,700 per inspection cycle. and –300 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 a report that during a maintenance check an operator discovered cracking of the aft cargo compartment frames in the station 1460 frame web and inner chord between certain stringers. The FAA is issuing this AD to address cracking at the frame web and inner chord; such cracks could propagate until they cause a severed frame, which could result in additional undetected cracking in adjacent fuselage frames, and could ultimately result in reduced structural integrity of the aft cargo frames and consequent rapid decompression of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified by paragraph (h) of this AD: At the applicable times specified in the ‘‘Compliance’’ paragraph of Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757–53A0113, dated February 22, 2019, which is referred to in Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019. (h) Exceptions to Service Information Specifications (1) For purposes of determining compliance with the requirements of this AD: Where Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019, uses the phrase ‘‘the original issue date of Requirements Bulletin 757–53A0113 RB,’’ this AD requires using ‘‘the effective date of this AD,’’ except where Boeing Alert Requirements Bulletin 757–53A0113 RB, E:\FR\FM\28JNP1.SGM 28JNP1 Federal Register / Vol. 84, No. 125 / Friday, June 28, 2019 / Proposed Rules dated February 22, 2019, uses the phrase ‘‘the original issue date of Requirements Bulletin 757–53A0113 RB’’ in a note or flag note. (2) Where Boeing Alert Requirements Bulletin 757–53A0113 RB, dated February 22, 2019, specifies contacting Boeing for repair instructions or for alternative inspections: This AD requires doing the repair, or doing the alternative inspections and applicable on-condition actions before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (i) Alternative Methods of Compliance (AMOCs) khammond on DSKBBV9HB2PROD with PROPOSALS (1) The Manager, Los Angeles ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j)(1) of this AD. Information may be emailed to: 9ANM-LAACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization (ODA) that has been authorized by the Manager, Los Angeles ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 91 [Docket No.: FAA–2019–0451; Notice No. 19–08] RIN 2120–AL30 Special Flight Authorizations for Supersonic Aircraft Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: Current regulations prohibit overland supersonic civil flights in the United States, but include a procedure to request authorization for these flights for the purposes of test and development of new aircraft. The criteria for such authorizations were developed in the 1970s and placed in an appendix to the operating regulations. With renewed interest in supersonic aircraft development, the FAA is proposing to modernize the procedure for requesting these special flight authorizations. DATES: Send comments on or before August 27, 2019. ADDRESSES: Send comments identified by docket number FAA–2019–0451 using any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov and follow the online instructions for sending your comments electronically. • Mail: Send comments to Docket Operations, M–30; U.S. Department of (j) Related Information Transportation (DOT), 1200 New Jersey (1) For more information about this AD, Avenue SE, Room W12–140, West contact Peter Jarzomb, Aerospace Engineer, Building Ground Floor, Washington, DC Airframe Section, FAA, Los Angeles ACO 20590–0001. Branch, 3960 Paramount Boulevard, • Hand Delivery or Courier: Take Lakewood, CA 90712–4137; phone: 562–627– comments to Docket Operations in 5234; fax: 562–627–5210; email: peter.jarzomb@faa.gov. Room W12–140 of the West Building (2) For service information identified in Ground Floor at 1200 New Jersey this AD, contact Boeing Commercial Avenue SE, Washington, DC, between 9 Airplanes, Attention: Contractual & Data a.m. and 5 p.m., Monday through Services (C&DS), 2600 Westminster Blvd., Friday, except Federal holidays. MC 110–SK57, Seal Beach, CA 90740–5600; • Fax: Fax comments to Docket telephone 562–797–1717; internet https:// Operations at 202–493–2251. www.myboeingfleet.com. You may view this Privacy: In accordance with 5 U.S.C. referenced service information at the FAA, 553(c), DOT solicits comments from the Transport Standards Branch, 2200 South public to better inform its rulemaking 216th St., Des Moines, WA. For information process. DOT posts these comments, on the availability of this material at the without edit, including any personal FAA, call 206–231–3195. information the commenter provides, to Issued in Des Moines, Washington, on June http://www.regulations.gov, as 12, 2019. described in the system of records Michael Kaszycki, notice (DOT/ALL–14 FDMS), which can Acting Director, System Oversight Division, be reviewed at http://www.dot.gov/ Aircraft Certification Service. privacy. [FR Doc. 2019–13672 Filed 6–27–19; 8:45 am] Docket: Background documents or comments received may be read at BILLING CODE 4910–13–P VerDate Sep<11>2014 16:43 Jun 27, 2019 Jkt 247001 SUMMARY: PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 30961 http://www.regulations.gov at any time. Follow the online instructions for accessing the docket or go to the Docket Operations in Room W12–140 of the West Building Ground Floor at 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. FOR FURTHER INFORMATION CONTACT: Mehmet Marsan, Office of Environment and Energy, AEE–100, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone (202) 267–7703; email mehmet.marsan@faa.gov. SUPPLEMENTARY INFORMATION: I. Executive Summary Civil aircraft may not operate in the United States in excess of Mach 1 except in accordance with an authorization issued by the FAA. Currently, the application requirements for an authorization are found in appendix B to 14 CFR part 91, Authorizations to exceed Mach 1 (§ 91.817). The FAA is proposing to streamline the application procedure for these special flight authorizations by clarifying the information that needs to be submitted and specifying the contact office within the FAA. This proposed rule sets forth those application criteria in a more user-friendly format. In this proposed rule, the FAA has identified three areas to improve provisions that are currently appendix B. The first designates to which office in the agency applicants should send applications and direct questions. The second gathers the scattered application requirements into a list, and presents them in current regulatory format. As part of this effort, the FAA is correcting the language to be consistent throughout the new section. Third, the agency is proposing the addition of a new reason for flight testing to accommodate future noise certification actions. This proposal removes the application criteria and procedure from an appendix and places it in regulatory text 1 in accordance with current regulatory format. This modernization of the authorization process for certain civil supersonic flights is intended to simplify and clarify the process for applicants interested in the authorization process. Finally, while not proposed as a change, the FAA is requesting comment on whether a regulatory provision that has yet to be used should be removed. 1 The material in appendix B was originally proposed as part of § 91.55 (now § 91.817) but was moved to an appendix at the suggestion of a commenter. E:\FR\FM\28JNP1.SGM 28JNP1

Agencies

[Federal Register Volume 84, Number 125 (Friday, June 28, 2019)]
[Proposed Rules]
[Pages 30958-30961]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-13672]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0438; Product Identifier 2019-NM-033-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for all The Boeing Company Model 757 airplanes. This proposed AD was 
prompted by a report that during a maintenance check an operator 
discovered cracking in the station 1460 frame web and inner chord 
between certain stringers. This proposed AD would require an inspection 
of the fuselage frames for any existing repair, repetitive surface high 
frequency eddy current (HFEC) inspections of the fuselage frames with a 
cargo liner support channel for any cracking, and applicable on-
condition actions. The FAA is proposing this AD to address the unsafe 
condition on these products.

DATES: The FAA must receive comments on this proposed AD by August 12, 
2019.

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

[[Page 30959]]

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-2019-0438.

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-2019-
0438; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations is listed above. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Peter Jarzomb, Aerospace Engineer, 
Airframe Section, FAA, Los Angeles ACO Branch, 3960 Paramount 
Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5234; fax: 562-627-
5210; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2019-0438; 
Product Identifier 2019-NM-033-AD'' at the beginning of your comments. 
The FAA specifically invites comments on the overall regulatory, 
economic, environmental, and energy aspects of this NPRM. The FAA will 
consider all comments received by the closing date and may amend this 
NPRM because of those comments.
    The FAA will post all comments, without change, to http://www.regulations.gov, including any personal information you provide. 
The FAA will also post a report summarizing each substantive verbal 
contact the agency receives about this proposed AD.

Discussion

    The FAA has received a report indicating that an operator found 
cracking of the aft cargo compartment frames in the station 1460 frame 
web and inner chord between stringers S-26 and S-27 near an existing 
repair. The crack initiated at the fastener hole common to the cargo 
liner support channel, and was found near an existing structural repair 
manual (SRM) repair. Primer was discovered in the crack, indicating 
that the crack already existed at the time the SRM repair was 
installed. The crack was discovered at 82,227 total flight hours and 
37,450 total flight cycles, and was the result of fatigue caused by 
cyclic pressurization of the fuselage and flight loads. This condition, 
if not addressed, could allow cracks to propagate until they cause a 
severed frame, which could result in additional undetected cracking in 
adjacent fuselage frames, and could ultimately result in reduced 
structural integrity of the aft cargo frames and consequent rapid 
decompression of the airplane.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Boeing Alert Requirements Bulletin 757-53A0113 RB, 
dated February 22, 2019. The service information describes procedures 
for a general visual inspection of the fuselage frames with a cargo 
liner support channel for any existing repair, repetitive surface HFEC 
inspections of the fuselage frames with a cargo liner support channel 
for any cracking, and applicable on-condition actions. On-condition 
actions include a general visual inspection of the fuselage frames 
adjacent to the frame with a severed inner chord for any existing 
repair, a detailed inspection and a surface HFEC inspection of the 
fuselage frames adjacent to a frame with a severed inner chord for any 
cracking, and repair.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

FAA's Determination

    The FAA is proposing this AD because the FAA evaluated all the 
relevant information and determined the unsafe condition described 
previously is likely to exist or develop in other products of the same 
type design.

Proposed AD Requirements

    This proposed AD would require accomplishment of the actions 
identified in Boeing Alert Requirements Bulletin 757-53A0113 RB, dated 
February 22, 2019, described previously, except for any differences 
identified as exceptions in the regulatory text of this proposed AD.
    For information on the procedures and compliance times, see this 
service information at http://www.regulations.gov by searching for and 
locating Docket No. FAA-2019-0438.

Explanation of Requirements Bulletin

    The FAA worked in conjunction with industry, under the 
Airworthiness Directive Implementation Aviation Rulemaking Committee 
(AD ARC), to enhance the AD system. One enhancement is a process for 
annotating which steps in the service information are ``required for 
compliance'' (RC) with an AD. Boeing has implemented this RC concept 
into Boeing service bulletins.
    In an effort to further improve the quality of ADs and AD-related 
Boeing service information, a joint process improvement initiative was 
worked between the FAA and Boeing. The initiative resulted in the 
development of a new process in which the service information more 
clearly identifies the actions needed to address the unsafe condition 
in the ``Accomplishment Instructions.'' The new process results in a 
Boeing Requirements Bulletin, which contains only the actions needed to 
address the unsafe condition (i.e., only the RC actions).

Costs of Compliance

    The FAA estimates that this proposed AD affects 544 airplanes of 
U.S. registry. The FAA estimates 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
----------------------------------------------------------------------------------------------------------------
General visual inspection......  37 work-hours x $85 per              $0  $3,145............  $1,710,880.
                                  hour = $3,145.

[[Page 30960]]

 
Repetitive surface HFEC          Up to 37 work-hours x                 0  Up to $3,145 per    Up to $1,710,880
 inspections.                     $85 per hour = Up to                     inspection cycle.   per inspection
                                  $3,145 per inspection                                        cycle.
                                  cycle.
----------------------------------------------------------------------------------------------------------------

    The FAA estimates the following costs to do any necessary on-
condition inspections that would be required. The FAA has no way of 
determining the number of aircraft that might need these on-condition 
inspections:

                 Estimated Costs of On-Condition Actions
------------------------------------------------------------------------
            Labor cost                Parts cost      Cost per product
------------------------------------------------------------------------
Up to 20 work-hour x $85 per hour               $0  Up to $1,700 per
 = Up to $1,700 per inspection                       inspection cycle.
 cycle.
------------------------------------------------------------------------

    The FAA has received no definitive data that would enable us to 
provide cost estimates for the on-condition repair specified in this 
proposed AD.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    The FAA is issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    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 and associated appliances to the 
Director of the System Oversight Division.

Regulatory Findings

    The FAA determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Will not affect intrastate aviation in Alaska, and
    (3) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

The Boeing Company: Docket No. FAA-2019-0438; Product Identifier 
2019-NM-033-AD.

(a) Comments Due Date

    The FAA must receive comments by August 12, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all The Boeing Company Model 757-200, -200PF, 
-200CB, and -300 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 a report that during a maintenance check 
an operator discovered cracking of the aft cargo compartment frames 
in the station 1460 frame web and inner chord between certain 
stringers. The FAA is issuing this AD to address cracking at the 
frame web and inner chord; such cracks could propagate until they 
cause a severed frame, which could result in additional undetected 
cracking in adjacent fuselage frames, and could ultimately result in 
reduced structural integrity of the aft cargo frames and consequent 
rapid decompression of the airplane.

(f) Compliance

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

(g) Required Actions

    Except as specified by paragraph (h) of this AD: At the 
applicable times specified in the ``Compliance'' paragraph of Boeing 
Alert Requirements Bulletin 757-53A0113 RB, dated February 22, 2019, 
do all applicable actions identified in, and in accordance with, the 
Accomplishment Instructions of Boeing Alert Requirements Bulletin 
757-53A0113 RB, dated February 22, 2019.

    Note 1 to paragraph (g): Guidance for accomplishing the actions 
required by this AD can be found in Boeing Alert Service Bulletin 
757-53A0113, dated February 22, 2019, which is referred to in Boeing 
Alert Requirements Bulletin 757-53A0113 RB, dated February 22, 2019.

(h) Exceptions to Service Information Specifications

    (1) For purposes of determining compliance with the requirements 
of this AD: Where Boeing Alert Requirements Bulletin 757-53A0113 RB, 
dated February 22, 2019, uses the phrase ``the original issue date 
of Requirements Bulletin 757-53A0113 RB,'' this AD requires using 
``the effective date of this AD,'' except where Boeing Alert 
Requirements Bulletin 757-53A0113 RB,

[[Page 30961]]

dated February 22, 2019, uses the phrase ``the original issue date 
of Requirements Bulletin 757-53A0113 RB'' in a note or flag note.
    (2) Where Boeing Alert Requirements Bulletin 757-53A0113 RB, 
dated February 22, 2019, specifies contacting Boeing for repair 
instructions or for alternative inspections: This AD requires doing 
the repair, or doing the alternative inspections and applicable on-
condition actions before further flight using a method approved in 
accordance with the procedures specified in paragraph (i) of this 
AD.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles ACO Branch, FAA, has the authority 
to approve AMOCs for this AD, if requested using the procedures 
found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your 
request to your principal inspector or local Flight Standards 
District Office, as appropriate. If sending information directly to 
the manager of the certification office, send it to the attention of 
the person identified in paragraph (j)(1) of this AD. Information 
may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by The Boeing Company Organization Designation 
Authorization (ODA) that has been authorized by the Manager, Los 
Angeles ACO Branch, FAA, to make those findings. To be approved, the 
repair method, modification deviation, or alteration deviation must 
meet the certification basis of the airplane, and the approval must 
specifically refer to this AD.

(j) Related Information

    (1) For more information about this AD, contact Peter Jarzomb, 
Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 
3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-
5234; fax: 562-627-5210; email: [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 June 12, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2019-13672 Filed 6-27-19; 8:45 am]
BILLING CODE 4910-13-P