AD 67-28-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric Company | CJ805-23 | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
| engine | General Electric Company | CJ805-23B | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
| engine | General Electric Company | CJ805-23C | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
| engine | General Electric Company | CJ805-3 | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
| engine | General Electric Company | CJ805-3A | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
| engine | General Electric Company | CJ805-3B | GENERAL ELECTRIC ENGINES Models CJ805-3, 3A, 3B, 23, 23B and 23C Engines |
Unsafe Condition
Failure of the eighth stage compressor disc P/N 106R682P1 and 108R619P1 due to excessive cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service eighth stage compressor discs based on their cycle counts as follows: discs with 12,000+ cycles must be removed within next 50 cycles; 11,000+ cycles within 250 cycles; 9500-11,000 cycles within 600 cycles; less than 9500 cycles within 1250 cycles or at 8000 cycles, whichever is later. Discs installed after AD effective date must be removed at or before 8000 cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Effective October 5, 1967.
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Affected Aircraft
General Electric Engines models CJ805-3, 3A, 3B, 23, 23B, and 23C Turbojet Engines with eighth stage compressor discs P/N 106R682P1 and 108R619P1.
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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