AD 79-13-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | C50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | D50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | D50A | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | D50B | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | D50C | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | D50E | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | E50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | F50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | G50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
| aircraft | Textron Aviation Inc. | H50 | Airworthiness Directives; BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 Airplanes |
Unsafe Condition
The possibility of powerplant fire occurrence due to inadequate fire containment and detection capabilities in the engine compartment and wheel wells.
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Required Actions
Within 25 hours time-in-service, incorporate the specified Airplane Flight Manual Supplement. Within 100 hours time-in-service (extendable to 200 hours if meeting AD 79-01-02 requirements), replace engine compartment hoses with fire-resistant types per TSO C53A, perform fuel system leak checks, and inspect for leaks after run-up. By October 19, 1979, install continuous fire detector systems per specified service kits.
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Compliance Time
Within 25 hours time-in-service after the effective date for the AFM supplement; within 100 hours time-in-service (extendable to 200 hours) for hose replacement and leak checks; on or before October 19, 1979 for fire detectors.
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Affected Aircraft
BEECH Models C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, and J50 airplanes modified with STC SA76SW.
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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