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Department of Transportation
Federal Aviation Administration
• 14 CFR Part 39
• [Docket No. FAA-2025-1357; Project Identifier AD-2025-00618-T; Amendment 39-23151; AD 2025-19-11]
• RIN 2120-AA64
AGENCY:
Federal Aviation Administration (FAA), DOT.
ACTION:
Final rule.
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 757-200, -200PF, and -200CB series airplanes. This AD was prompted by a report of improper grinding of the inner diameter of the main landing gear (MLG) outer cylinders, resulting in possible heat damage to the outer cylinders. This AD requires a records check or inspection to determine if an affected outer cylinder is installed and replacing all affected outer cylinders. The FAA is issuing this AD to address the unsafe condition on these products.
DATES:
This AD is effective November 6, 2025.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of November 6, 2025.
ADDRESSES:
AD Docket:
You may examine the AD docket at
regulations.gov
under Docket No. FAA-2025-1357; 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 final rule, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
• 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; websitemyboeingfleet.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 atregulations.gov
under Docket No. FAA-2025-1357.
FOR FURTHER INFORMATION CONTACT:
Stefanie Roesli, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3964; email:
stefanie.n.roesli@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all The Boeing Company Model 757-200, -200PF, and -200CB series airplanes. The NPRM was published in the
Federal Register
on July 8, 2025 (90 FR 30030). The NPRM was prompted by a report of improper grinding of the inner diameter of the MLG outer cylinders, resulting in possible heat damage to the outer cylinders. In the NPRM, the FAA proposed to require a records check or inspection to determine if an affected outer cylinder is installed and replacing all affected outer cylinders. The FAA is issuing this AD to address heat damage to the MLG outer cylinders. The unsafe condition, if not addressed, could cause failure of a principal structural element to sustain its limit load or collapse of the MLG, which could result in loss…
Fonte: Federal Register (federalregister.gov). Texto original em inglês.