Superseded. This AD was superseded by AD 2026-13-05. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2026-04-05
Effective 02/24/2026 · Published 02/24/2026
Airworthiness Directives; The Boeing Company Airplanes
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…