AD 89-01-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric Company | CF6-50A | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50C | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50C1 | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50C2 | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50C2B | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50C2D | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50CA | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50E | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50E1 | GENERAL ELECTRIC Model CF6-50 Series Engines |
| engine | General Electric Company | CF6-50E2 | GENERAL ELECTRIC Model CF6-50 Series Engines |
Unsafe Condition
Failure of high pressure turbine (HPT) stage 2 disks, Part Numbers 9045M35P15, 9045M35P17, and 9045M35P18, Serial Numbers MTU00001 through MTU00973 (excluding listed exceptions).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Accomplish either rework the forward embossment per GE SB 72-947 at next HPT module exposure within 3,800 cycles since installation, or perform double fluorescent penetrant inspection (FPI) followed by rework before 2,500 cycles since FPI. Disks with cracks cannot be reused.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required at next HPT module exposure or within specified cycles (3,800 cycles since installation, or within 300 cycles from AD effective date if over 3,500 cycles on effective date).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Electric CF6-50 series engines with HPT stage 2 disks Part Numbers 9045M35P15, 9045M35P17, 9045M35P18, Serial Numbers MTU00001 through MTU00973 (excluding listed exceptions).
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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