AD 97-02-01 62 FR 3451

This amendment adopts a new airworthiness directive (AD) that applies to The New Piper Aircraft, Inc. (Piper) Model PA-31T2 airplanes that have a Parker Hannifin Wheel and Brake Conversion Kit 199-111 installed in accordance with Supplemental Type Certificate (STC) SA599GL. This action requires rerouting the landing gear emergency extension line. This AD results from three incidents of the brake cylinder contacting the landing gear emergency extension air line on both wheel wells. The actions specified by this AD are intended to prevent the brake cylinder from chafing against the landing gearemergency extension air line when the gear is in the up and locked position, which could result in damage to the air line and subsequent loss of emergency gear extension capability.