Airworthiness Directive · Amendment 39-12486 · Honeywell International, Inc. LTP 101 Series Turboprop and LTS101 Series Turboshaft Engines
Honeywell International, Inc. LTP 101 Series Turboprop and LTS101 Series Turboshaft Engines
This airworthiness directive (AD) is applicable to Honeywell International, Inc. (formerly AlliedSignal Inc. and Textron Lycoming) LTP 101 series turboprop and LTS101 series turboshaft engines with the following part numbers (P/N's) rigid tube fuel manifolds installed: Table 1.--P/N's of Affected Rigid Tube Fuel Manifolds 4-301-042-02 4-301-042-06 4-301-236-03 4-301-286-02 4-301-042-04 4-301-236-01 4-301-236-04 4-301-376-01 4-301-042-05 4-301-236-02 4-301-286-01 These engines are installed on, but not limited to Aerospatiale AS350, Eurocopter MBB-BK117 and HH-65A, Bell 222, Page Thrush, Air Tractor AT-302, Piaggio P.166-DL3, Riley International R421, and Pacific Aero 08-600 aircraft.
This amendment adopts a new airworthiness directive (AD), that is applicable to certain Honeywell International, Inc. (formerly AlliedSignal, Inc. and Textron Lycoming) LTP 101 series turboprop and LTS101 series turboshaft engines. This amendment requires a new life limitation and removal of rigid tube fuel manifold assemblies and replacement with serviceable assemblies. This amendment is prompted by reports of cracking and fuel leakage of rigid tube fuel manifolds. The actions specified by this AD are intended to prevent engine fuel leakage due to low-cycle fatigue (LCF) cracking of the rigid tube fuel manifold, which could result in an in-flight fire.
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
