Reports of loose attachment fasteners found on engine cowling panels and the result of loose panels either peeling back or separating from aircraft during flight has led the FAA to propose a new Airworthiness Directive for Beech (Raytheon) Model 400, 400A and 400T series aircraft. The idea is to prevent failure of the fasteners and avert potentially destructive damage to the aircraft and it’s downstream components and endanger property or people on the ground. [more] Compliance with the proposed AD would require action within 200 flight hours to modify the cowlings’ attachment fasteners in accordance with Ratytheon Service Bulletin SB 5403788 dated December 2006.
FAA: Beechjet Cowlings Potentially Unsafe
Key Takeaways:
- The FAA has proposed an Airworthiness Directive for Beech (Raytheon) Model 400 series aircraft due to loose engine cowling fasteners separating during flight.
- This action aims to prevent destructive damage to aircraft components and potential hazards to property or people on the ground.
- Compliance requires modifying the cowlings' attachment fasteners within 200 flight hours, as specified in Raytheon Service Bulletin SB 54-03788.
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