Document Headings
Document headings vary by document type but may contain
the following:
•
the agency or agencies that issued and signed a document
•
the number of the CFR title and the number of each part
the document amends, proposes to amend, or is directly
related to
•
the agency docket number / agency internal file number
•
the RIN which identifies each regulatory action listed in
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Actions
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Department of Transportation
Federal Aviation Administration
• 14 CFR Part 39
• [Docket No. FAA-2026-1332; Project Identifier AD-2026-00084-T; Amendment 39-23265; AD 2026-04-05]
• RIN 2120-AA64
AGENCY:
Federal Aviation Administration (FAA), DOT.
ACTION:
Final rule; request for comments.
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This AD was prompted by reports of in-flight events of excessive cabin and flight deck temperatures that could not be controlled by the flightcrew using existing procedures. This AD requires revising the existing airplane flight manual (AFM) to provide the flightcrew with operating procedures (non-normal checklists) if a certain circuit breaker in the standby power control unit (SPCU) trips. The FAA is issuing this AD to address the unsafe condition on these products.
DATES:
This AD is effective February 24, 2026.
The FAA must receive comments on this AD by April 10, 2026.
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.
•
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
by searching for and locating Docket No. FAA-2026-1332; 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 street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
Derrick Herrera, Aviation Safety
( printed page 8709)
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 817-222-5140; email:
derrick.r.herrera@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments using a method listed under the
ADDRESSES
section. Include Docket No. FAA-2026-1332 and Project Identifier AD-2026-00084-T at the beginning of your comments. The most helpful comments reference a specific portion of the final rule, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend this final rule 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 wil…
Fonte: Federal Register (federalregister.gov). Texto original em inglês.