Business · 31/07/1997Updated: 10/17/2026 · 1 min read

AlliedSignal Inc. Proposes Airworthiness Directive for TPE331 and TSE331 Engines

Summary

AlliedSignal Inc. is proposing a new airworthiness directive for its TPE331 series turboprop and TSE331 turboshaft engines, requiring replacement or radiographic inspection of certain third stage turbine stators to prevent engine failure due to thermal fatigue cracking.

Original source language: Federal Register — Federal Aviation AdministrationOpen original release →

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