For checking seat rail wear limits as per FAA Airworthiness Directive 2011-10-09, Effective 06/17/2011
The Seat Track Wear Gauge is designed to check for seat rail pin engagement hole wear on Cessna Aircraft, as required by FAA AD 2011-10-09. This gauge is designed to measure the actual radius wear near the seat stop holes and allows for the .020 upper surface wear permitted by the AD.
