AD 76-17-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric Company | CF6-50A | GENERAL ELECTRIC Models CF6-50A, CF6-50C, CF6-50D, CF6-50E, CF6-50E1, and CF6-50H Engines |
| engine | General Electric Company | CF6-50C | GENERAL ELECTRIC Models CF6-50A, CF6-50C, CF6-50D, CF6-50E, CF6-50E1, and CF6-50H Engines |
| engine | General Electric Company | CF6-50E | GENERAL ELECTRIC Models CF6-50A, CF6-50C, CF6-50D, CF6-50E, CF6-50E1, and CF6-50H Engines |
| engine | General Electric Company | CF6-50E1 | GENERAL ELECTRIC Models CF6-50A, CF6-50C, CF6-50D, CF6-50E, CF6-50E1, and CF6-50H Engines |
Unsafe Condition
Excessive overpressure in the high pressure compressor
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove fan stator stages 1, 2, and 3 inner shrouds, stage 2 outer shroud, and stages 2 and 3 cases with abradable epoxy resin. Replace with new or reworked parts incorporating aluminum honeycomb material.
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Compliance Time
by June 1, 1977, unless previously accomplished
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Affected Aircraft
GENERAL ELECTRIC Models CF6-50A, CF6-50C, CF6-50D, CF6-50E, CF6-50E1, and CF6-50H Turbofan Engines
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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