AD 82-13-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce Corporation | 250-C20 | DETROIT DIESEL ALLISON Models 250-C20 and -C20B Engines |
| engine | Rolls-Royce Corporation | 250-C20B | DETROIT DIESEL ALLISON Models 250-C20 and -C20B Engines |
Unsafe Condition
Possible power turbine overspeed due to unmodified high pressure fuel control filter assembly.
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Required Actions
Modify the engine high pressure fuel control filter assembly with P/N 6899279 following Detroit Diesel Allison Commercial Engine Alert Bulletin CEB-A-1144, Revision 3, or later FAA approved revision. Compliance may be achieved through equivalent means approved by the Chief, Chicago Aircraft Certification Office.
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Compliance Time
At the next engine or CECO fuel control/power turbine governor overhaul, but not later than October 1, 1982
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Affected Aircraft
Rolls-Royce Corporation Models 250-C20 and -C20B engines equipped with Chandler Evans Company Model MC-40 fuel control system.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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