Airworthiness Directive · Amendment 39-9206 · AlliedSignal Engines (Formerly Textron Lycoming) LTS101 Series Turboshaft and LTP101 Series Turboprop Engines
AlliedSignal Engines (Formerly Textron Lycoming) LTS101 Series Turboshaft and LTP101 Series Turboprop Engines
Superseded. A later AD replaced this one: AD 2001-17-15. Comply with the one in force.
AlliedSignal Engines (formerly Textron Lycoming) LTS101 series turboshaft and LTP101 series turboprop engines incorporating Chandler Evans (CECO) engine fuel pumps, Part Numbers 4-301-128-01, -02, -03, -04, -05, -06, -07, -08, -09, and -10. These engines are installed on but not limited to the following single- engine aircraft: Eurocopter France (formerly Aerospatiale) AS350D series helicopters and Airtractor AT302, PAC Aero Cresco, and Page (Ayres S-2R) Thrush airplanes. This AD is not applicable to engines installed on twin-engine aircraft.
This amendment adopts a new airworthiness directive (AD) that is applicable to AlliedSignal Engines (formerly Textron Lycoming) LTS101 series turboshaft and LTP101 series turboprop engines. This action supersedes priority letter AD 94-19-01 that currently requires initial and repetitive inspections for wear of the engine fuel pump internal drive splines, and replacement of engine fuel pumps that exhibit wear beyond specified limits. This action clarifies the original requirements of the current AD by providing additional information to emphasize that the AD only applies to engines installed on single-engine aircraft and to emphasize that removed fuel pumps must be returned to the manufacturer for inspection. In addition, this action defines a serviceable part. This amendment is prompted by requests to clarify interpretations of the current priority letter AD. The actions specified by this AD are intended to prevent engine fuel pump failure, which can result in total engine power loss and possible loss of the aircraft.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
