AlliedSignal Inc. ALF502 and LF507 Series Turbofan Engines Airworthiness Directive Amendment

Summary

The Federal Aviation Administration (FAA) has issued an amendment to an existing airworthiness directive for AlliedSignal Inc. ALF502 and LF507 series turbofan engines, requiring initial and repetitive inspections of the oil system chip detectors and oil filter bypass valve to prevent bearing failure and engine damage.