Airworthiness Directives; AlliedSignal Inc. T5311, T5313, T5317, and T53 (Military) Series Engines

Summary

AlliedSignal Inc. proposes a new airworthiness directive for its T5311, T5313, T5317, and T53 series military engines, requiring removal and replacement of the N2 spur gear nut retainer to address reports of separation, which could lead to engine acceleration.