Summary
This document proposes the adoption of 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 proposal would require a new life limitation and removal of rigid tube fuel manifold assemblies and replacement with serviceable assemblies. This proposal is prompted by reports of cracking and fuel leakage of rigid tube fuel manifolds. The actions specified by the proposed 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.