Airworthiness Directives (ADs) Issued

The FAA issued the following ADs related to this accident.

Engine:

  1. AD 76-17-01: This AD became effective on August 20, 1976 and required replacement of the abradable epoxy resin material with an alternate material (aluminum honeycomb) that would not ignite and result in excessive overpressure in the high pressure compressor. This AD was applicable to CF6-50 series turbofan engines and incorporated by reference GE service bulletin 72-412, Rev 1.
  2. AD 76-21-04: This AD became effective on November 30, 1977 and required replacement of the abradable material with an alternate material that would not ignite and result in excessive overpressure in the high pressure compressor. This AD was applicable to CF6-6 series turbofan engines and incorporated by reference GE service bulletin 72-647.

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