FAA Bulletin Details Weber Seat-track Issue

FAA today released a Special Airworthiness Information Bulletin (SAIB) detailing the passenger seat-track issue that challenged American Airlines last month. 

The bulletin, based on service information provided by seat manufacturer Weber, indicates that rear seat track attachment fittings on 11 seat models are susceptible to incorrect installation. The bulletin attributes the problem to the fitting's shear plunger not being properly engaged (see photos, below).

The bulletin urges operators to heed Weber service instructions issued October 26 detailing a special seat track inspection to ensure correct installation. Weber's instructions, some of which (.pdf) are included with the SAIB, indicate that about two dozen airlines had the affected seats in service at one time, though many of the airline/aircraft combinations listed (American F.100, Delta 727) and even some of the carriers themselves (Ansett Australia) are long gone.

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