Airworthiness Directives; Aerostar Aircraft Corporation Models PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P), PA-60-602P (Aerostar 602P), and PA-60-700P (Aerostar 700P) Airplanes

摘要

This amendment adopts a new airworthiness directive (AD) that applies to certain Aerostar Aircraft Corporation (Aerostar) Models PA- 60-601 (Aerostar 601), PA-60-601P (Aerostar 601P), PA-60-602P (Aerostar 602P), and PA-60-700P (Aerostar 700P). This AD requires you to replace Roto-Master and Rajay scavenge pumps with improved design Aerostar scavenge pumps. This AD is the result of failures of the existing Roto- Master and Rajay scavenge pumps found during regular maintenance inspections. The actions specified by this AD are intended to prevent in-flight failure of the oil scavenge pumps, which could result in loss of engine oil and possible loss of engine power.