AD 74-23-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | TFE731-2 | AIRESEARCH MANUFACTURING COMPANY OF ARIZONA Model TFE731-2-2B and -2-1C Engines |
Unsafe Condition
Fuel pumps (P/N 3070851-2, -4, -5, and -6) may fail due to insufficient service life limit, exceeding 25 hours total time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace fuel pumps with less than 25 hours total time in service before exceeding 25 hours. Replace fuel pumps with more than 25 hours total time immediately. Inspect and re-identify eligible pumps per AiResearch Service Bulletin TFE731-73-3005.
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Compliance Time
before exceeding 25 hours total time in service
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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