89 FR 193 pgs. 80827-80831 - Airworthiness Directives; The Boeing Company Airplanes
Type: PRORULEVolume: 89Number: 193Pages: 80827 - 80831
Pages: 80827, 80828, 80829, 80830, 80831Docket number: [Docket No. FAA-2024-1287; Project Identifier AD-2023-00992-T]
FR document: [FR Doc. 2024-22663 Filed 10-3-24; 8:45 am]
Agency: Transportation Department
Sub Agency: Federal Aviation Administration
Official PDF Version: PDF Version
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1287; Project Identifier AD-2023-00992-T]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY:
Federal Aviation Administration (FAA), DOT.
ACTION:
Supplemental notice of proposed rulemaking (SNPRM).
SUMMARY:
The FAA is revising an earlier notice of proposed rulemaking (NPRM) to supersede Airworthiness Directive (AD) 2012-07-06. AD 2012-07-06 applies to certain The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes. This action revises the NPRM by proposing to require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is requesting comments on this SNPRM.
DATES:
The FAA must receive comments on this SNPRM by November 18, 2024.
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 regulations.gov . Follow the instructions for submitting comments.
• Fax: 202-493-2251.
• 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.
AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2024-1287; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, this SNPRM, any comments received, and other information. The street address for Docket Operations is listed above.
Material Incorporated by Reference:
• For Boeing material in this proposed 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; website myboeingfleet.com .
• You may view this material at the FAA, Airworthiness Products Section, Operational Safety 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 at regulations.gov under Docket No. FAA-2024-1287.
FOR FURTHER INFORMATION CONTACT:
Luis Cortez-Muniz, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3958; email: Luis.A.Cortez-Muniz@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-2024-1287; Project Identifier AD-2023-00992-T" at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may again revise this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to regulations.gov, including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this proposed AD.
Confidential Business Information
CBI is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this SNPRM contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this SNPRM, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as "PROPIN." The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this SNPRM. Submissions containing CBI should be sent to: Luis Cortez-Muniz, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3958; email: Luis.A.Cortez-Muniz@faa.gov. Any commentary that the FAA receives that is not specifically designated as CBI will be placed in the public docket for this rulemaking.
Background
The FAA issued AD 2012-07-06, Amendment 39-17012 (77 FR 21429, April 10, 2012) (AD 2012-07-06), for The Boeing Company Model 777-200, 200LR, -300, -300ER, and 777F series airplanes with an original airworthiness certificate or original export certificate of airworthiness issued before September 1, 2010. AD 2012-07-06 requires revising the maintenance program to update inspection requirements to detect fatigue cracking of principal structural elements (PSEs). The FAA issued AD 2012-07-06 to ensure that fatigue cracking of various PSEs is detected and corrected; such fatigue cracking could adversely affect the structural integrity of these airplanes.
[top] The FAA issued an NPRM to amend 14 CFR part 39 by adding an AD to
Actions Since the NPRM Was Issued
Since the FAA issued the NPRM, Boeing published Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document; and Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023, which contain new and more restrictive airworthiness limitations (inspections and life limits have been updated). The FAA has determined it is necessary to mandate those airworthiness limitations.
Airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or after September 5, 2024, must comply with the airworthiness limitations specified as part of the approved type design and referenced on the type certificate data sheet; this proposed AD therefore does not include those airplanes in the applicability.
Comments
The FAA received a comment from FedEx Express who supported the NPRM without change.
The FAA received additional comments from four commenters, including American Airlines (AAL), Boeing, Japan Airlines (JAL), and United Airlines (UAL). The following presents the comments received on the NPRM and the FAA's response to each comment.
Request To Update the Document to the Latest Revision
JAL and UAL requested that the proposed AD be revised to change the reference to the December 2022 versions of the airworthiness limitation documents cited in the proposed AD. JAL and UAL noted that Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document; and Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023, are already published. UAL stated that this change will simplify the implementation process for operators by removing the need for a new alternative method of compliance (AMOC) to implement the latest MPD revision. UAL stated it has already been working toward implementing the April 2023 revision, even before release of the NPRM.
The FAA agrees with the request. As previously stated, the FAA has determined it is necessary to mandate the new airworthiness limitations specified in the Revision April 2023 AWLs documents because the inspections and life limits have been updated. The FAA has revised this proposed AD accordingly.
Request To Add a Compliance Time for New Parts
JAL requested that a compliance time for new parts, similar to the statement in paragraph (g)(2) of AD 2012-07-06, be added to this proposed AD, i.e., "within the applicable time specified in Subsection B, Airworthiness Limitations-Structural Inspections, of Section 9, `Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs),' D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document, from the time of installation for new parts."
The FAA agrees with the request. The compliance time for new parts is still applicable as stated previously in AD 2012-07-06. This compliance time was inadvertently excluded from the proposed AD (in the NPRM). The FAA has revised paragraph (i)(2) of this proposed AD (in the SNPRM) accordingly.
Request To Remove a Duplicate Reporting Requirement
The Boeing company requested that the FAA removes paragraph (i)(3) of the proposed AD. Boeing stated that the same reporting requirement is included in Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision December 2022, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document.
The FAA agrees with the request. Both the Revision December 2022 and Revision April 2023 versions of the MPD already include a reporting requirement of 10 days after the airplane is returned to service. Therefore, the exception is not necessary for the Revision April 2023 MPD. However, the exception is still necessary for the Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023. The FAA has revised paragraph (i)(3) of the proposed AD (in the NPRM) accordingly.
Request for Clarification of Reporting Requirements
AAL requested that the language in the "Proposed AD Requirements in This NPRM" paragraph of the NPRM be revised from "This proposed AD would also require sending inspection results to Boeing" to "This proposed AD would also require sending inspection results of crack findings to Boeing." AAL also requested that paragraph (i)(3) of the proposed AD be revised to change "Reports specified in Section 9 . . ." to "Reports of crack findings as specified in Section 9 . . . ." AAL stated that additional clarification is necessary to avoid any possible ambiguity in the intent of the proposed AD and makes the requirement eminently clear that only crack findings need to be reported, as specified in Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document.
[top] The FAA partially agrees with the requests. The FAA concurs that Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document specifies to report crack findings of structural inspections. However, as stated previously, paragraph (i)(3) of the proposed AD (in
Request To Extend Compliance Time
AAL requested that paragraph (i)(2) of the proposed AD be revised to ". . . or within 18 months from the AD effective date, whichever occurs later," as was permitted in paragraph (g)(2) of AD 2012-07-06. AAL stated that extending the compliance time from 12 months to 18 months will allow operators greater flexibility to bridge these requirements into their maintenance program without the possibility of forcing aircraft out of service, especially considering some maintenance check intervals may have been escalated during the time between when AD 2012-07-06 was released, and when the proposed AD becomes an AD.
The FAA does not agree with the request. The 12-month compliance time (grace period) is being proposed to ensure a timely implementation of Subsection B, Airworthiness Limitations-Structural Inspections and Subsection C, Airworthiness Limitations-Structural Safe-Life Limits, of Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document; and Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023, and to maintain an adequate level of safety in the fleet. Therefore, the FAA has not changed this proposed AD regarding this request. However, under the provisions of paragraph (k) of this proposed AD, the FAA will consider requests for approval of alternative compliance times if sufficient data are submitted to substantiate that the change would provide an acceptable level of safety.
FAA's Determination
The FAA is proposing this SNPRM after determining the unsafe condition described previously is likely to exist or develop in other products of the same type design. Certain changes described above expand the scope of the NPRM. As a result, it is necessary to reopen the comment period to provide additional opportunity for the public to comment on this SNPRM.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document. Subsection B, Airworthiness Limitations-Structural Inspections and Subsection C, Airworthiness Limitations-Structural Safe-Life Limits, of this material contains airworthiness limitations for structural inspections and structural life limits, among other limitations.
The FAA also reviewed Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023. This material provides the DTR check forms and the procedure for their use.
This proposed AD would also require Section 9, "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document, which the Director of the Federal Register approved for incorporation by reference as of May 15, 2012 (77 FR 21429, April 10, 2012).
This material 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.
Proposed AD Requirements in This SNPRM
For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued before September 1, 2010, this proposed AD would retain all the requirements of AD 2012-07-06. For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued before September 5, 2024, this proposed AD would require revising the existing maintenance or inspection program to incorporate new and more restrictive airworthiness limitations, which would then terminate the retained requirements of AD 2012-07-06. This proposed AD would also require sending inspection results to Boeing.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would affect 326 airplanes of U.S. registry. The FAA estimates the following costs to comply with this proposed AD:
The FAA estimates the total cost per operator for the retained actions from AD 2012-07-06 to be $7,650 (90 work-hours × $85 per work-hour).
The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 work-hours per operator, although the FAA recognizes that this number may vary from operator to operator. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate.
The FAA estimates the total cost per operator for the new proposed actions to be $7,650 (90 work × hours × $85 per work-hour).
| Action | Labor cost | Parts cost | Cost per product |
|---|---|---|---|
| Reporting | 1 work-hour × $85 per hour = $85 | $0 | $85 |
Paperwork Reduction Act
[top] A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a currently valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to take approximately 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to: Information Collection Clearance
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.
Regulatory Findings
The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify this proposed regulation:
(1) Is not a "significant regulatory action" under Executive Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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:
a. Removing Airworthiness Directive (AD) 2012-07-06, Amendment 39-17012 (77 FR 21429, April 10, 2012); and
b. Adding the following new AD:
The Boeing Company: Docket No. FAA-2024-1287; Project Identifier AD-2023-00992-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive (AD) by November 18, 2024.
(b) Affected ADs
This AD replaces AD 2012-07-06, Amendment 39-17012 (77 FR 21429, April 10, 2012) (AD 2012-07-06).
(c) Applicability
This AD applies to The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category, with an original airworthiness certificate or original export certificate of airworthiness issued before September 5, 2024.
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight Controls; 28, Fuel; 32, Landing Gear; 52, Doors; 53, Fuselage; 54, Nacelles/Pylons; 55, Stabilizers; 57, Wings.
(e) Unsafe Condition
This AD was prompted by new revisions to the airworthiness limitations of the maintenance planning document and damage tolerance rating check form document. The FAA is issuing this AD to address fatigue cracking of various principal structural elements. The unsafe condition, if not addressed, could result in could adversely affect the structural integrity of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified, unless already done.
(g) Retained Revision of Maintenance Program With No Changes
This paragraph restates the requirements of paragraph (g) of AD 2012-07-06, with no changes. For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued before September 1, 2010: Comply with the requirements of paragraphs (g)(1) through (3) of this AD. Accomplishing the revision of the existing maintenance or inspection program required by paragraph (i) of this AD terminates the requirements of this paragraph.
(1) Within 12 months after May 15, 2012 (the effective date of AD 2012-07-06), revise the maintenance program by incorporating the information in Subsection B, Airworthiness Limitations-Structural Inspections, of Section 9, "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document, except as provided by paragraph (h) of this AD.
(2) The initial compliance time for the inspections is within the applicable times specified in Subsection B, Airworthiness Limitations-Structural Inspections, of Section 9, of "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document, or within 18 months after May 15, 2012 (the effective date of AD 2012-07-06), whichever occurs later, or within the applicable time specified in Subsection B, Airworthiness Limitations-Structural Inspections, of Section 9, "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document, from the time of installation for new parts.
(3) Reports specified in Section 9, "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document may be submitted within 10 days after the airplane is returned to service, instead of 10 days after each individual finding as specified in this document.
(h) Retained Alternative Inspections and Inspection Intervals With an Additional Exception
This paragraph restates the requirements of paragraph (h) of AD 2012-07-06, with an additional exception. After accomplishing the actions required by paragraph (g) of this AD, no alternative inspections or inspection intervals may be used unless the alternative inspection or interval is required by paragraph (i) of this AD or approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (k) of this AD.
(i) Revision of Maintenance or Inspection Program
(1) Within 12 months after the effective date of this AD, revise the existing maintenance or inspection program by incorporating the information in Subsection B, Airworthiness Limitations-Structural Inspections and Subsection C, Airworthiness Limitations-Structural Safe-Life Limits, of Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document; and in Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023.
[top] (2) The initial compliance time for the tasks is within the applicable times specified in Subsection B, Airworthiness Limitations-Structural Inspections and Subsection C, Airworthiness Limitations-Structural Safe-Life Limits, of Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F
(3) Reports specified in Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023 may be submitted within 10 days after the airplane is returned to service, instead of 10 days as specified in the document.
(j) Alternative Inspections and Inspection Intervals
After accomplishing the actions required by paragraph (i) of this AD, no alternative inspections or inspection intervals may be used unless the alternative inspection or interval is approved as an AMOC in accordance with the procedures specified in paragraph (k) of this AD.
(k) Alternative Methods of Compliance (AMOCs)
(1) The Manager, AIR-520, Continued Operational Safety 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 responsible Flight Standards 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 (l) of this AD. Information may be emailed to: AMOC@faa.gov.
(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards 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, AIR-520, Continued Operational Safety 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) AMOCs approved for AD 2012-07-06 are approved as AMOCs for the corresponding provisions of paragraph (g) of this AD.
(5) AMOCs approved for repairs and alterations for AD 2012-07-06 are approved as AMOCs for the corresponding provisions of paragraph (i) of this AD. All other AMOCs approved for AD 2012-07-06 are not approved as AMOCs for the corresponding provisions of paragraph (i) of this AD.
(l) Related Information
For more information about this AD, contact Luis Cortez-Muniz, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3958; email: Luis.A.Cortez-Muniz@faa.gov.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions required by this AD, unless this AD specifies otherwise.
(3) The following material was approved for IBR on [DATE 35 DAYS AFTER PUBLICATION OF THE FINAL RULE].
(i) Section 9, Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D622W001-9, Revision April 2023, of the Boeing 777-200/200LR/300/300ER/777F Maintenance Planning Data (MPD) Document.
(ii) Boeing 777-200/200LR/300/300ER/777F Damage Tolerance Rating (DTR) Check Form Document, D622W001-DTR, dated April 2023.
(4) The following material was approved for IBR on May 15, 2012 (77 FR 21429, April 10, 2012).
(i) Section 9, "Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs)," D622W001-9, Revision July 2011, of the Boeing 777 Maintenance Planning Data (MPD) Document.
(ii) [Reserved]
(5) For Boeing material 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; website myboeingfleet.com.
(6) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.
(7) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov .
Issued on September 27, 2024.
Peter A. White,
Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service.
[FR Doc. 2024-22663 Filed 10-3-24; 8:45 am]
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