New Parts, Old Problems

The FAA is encouraging owners and maintainers of Cessna T303, 336, 337 and all legacy, pre-1986 single-engine models to adhere to AD 87-20-03R2. The AD was issued because of pilot/copilot seat slippage due to the latch pin not properly engaging in the seat rail/track. The FAA states, "Compliance with AD 87-20-03R2 should have eliminated accidents and Service Difficulty Reports (SDRs). However, in the past decade we have seen a resurgence in the number of accidents [which] may indicate the inspections of the seat tracks are not being adequately performed or existing problems are not being corrected." The FAA strongly suggests reviewing AD 87-2-03R2. Cessna SEB07-5R1 or MEB07-1R1 covers secondary seat stop installation.

Key Takeaways:

• The FAA highlights a resurgence in accidents due to pilot/copilot seat slippage in multiple Cessna models (T303, 336, 337, and pre-1986 singles), suggesting inadequate adherence to existing AD 87-20-03R2.
• New flap follow-up cables for the Cessna T210L (p/n 9860058-1) are reported as consistently stiff and rough, particularly with multiple bends, complicating proper limit switch adjustment even though Cessna states they meet original specifications.
• Critical component failures include a Slick 4370 magneto with a broken distributor/points camshaft causing total failure, and a troubling 70% failure rate for Kelly Aerospace overhauled DOFF10300 alternators within 50 hours due to various defects like broken studs and loose hardware.

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