AD 73-19-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce Corporation | 250-C20 | DETROIT DIESEL ALLISON Model 250-C20 Engine |
Unsafe Condition
Failure of the P/N 6875621 power turbine governor-to-fuel control fuel tube.
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Required Actions
Install the fuel tube supports specified in Allison Commercial Engine Bulletin 250-C20 CEB-1040, dated May 10, 1973, Revision 1, dated June 28, 1973, or later FAA approved revisions or an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Great Lakes Region.
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Compliance Time
within the next fifty hours time in service
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Affected Aircraft
Rolls-Royce Corporation Model 250-C20 engine
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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