2025-23-03: Fire protection
FAA order 2025-23-03 is an airworthiness directive in force since January 13, 2026. The FAA's subject line: Fire protection. It names Boeing 757: about 440 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- The Boeing Company
- Models
- 757-200 Series, 757-200PF Series, 757-200CB Series, 757-300 Series
- On this site
- Boeing 757 440 registered
Dates and paperwork
- In force since
- January 13, 2026
- Published
- December 9, 2025 (signed November 5, 2025)
- Docket
- FAA-2025-0474
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The FAA's summary their words, unchanged
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. This AD was prompted by reports of precoolers that failed due to a wear-out condition, combined with latently failed overheat detection thermal switches. This AD requires an inspection for heat damage on the engine strut structure, repetitive tests of the thermal switch temperature and ground wires, replacement of the precooler on Model 757-300 airplanes, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
The order itself the regulatory text, as published
Show the full text (313 characters)
Related safety bulletins advice on the same designs, not orders
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2025-23-03.json · aircraft systems.