AD 70-15-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 336 | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | 337 | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | 337A | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | 337B | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | 337C | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | 337D | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | T337B | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | T337C | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
| aircraft | Cessna Aircraft Company | T337D | Airworthiness Directives; CESSNA Model 336, 337, 337A, B, C and D, T337B, C and D Airplanes |
Unsafe Condition
Damage to fuel quantity indicators and fuel tank transmitters due to overheating, which can result in smoke emission in the cockpit and inaccurate fuel quantity indication.
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Required Actions
Install a cooling duct directing ram air over the fuel quantity indicators and perform a functional ground check of the fuel quantity system in accordance with Cessna Service Letter No. ME70-24 or later FAA approved revision.
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Compliance Time
Within 50 hours' time in service after the effective date of this AD
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Affected Aircraft
Cessna Model 336 (Serial Numbers 336-0001 through 336-0195), 337, 337A, B, C and D (Serial Numbers 337-0001 through 337-1193), T337B, C and D (Serial Numbers 337-0526 through 337-1193) airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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