AD 75-09-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 337 | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337A | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337B | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337C | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337D | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337E | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337F | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337G | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
| aircraft | Cessna Aircraft Company | 337H | Airworthiness Directives; CESSNA Model 337 Series Aircraft |
Unsafe Condition
Possibility of unreliable airspeed indications due to ice formation in the pitot system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Rework the extended pitot tube by installing Robertson Kit No. 14-118-100 in accordance with Robertson modification instructions No. 14-118-10 dated January 23, 1975, or later FAA approved revisions, or in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours of operation after the effective date of this AD
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Affected Aircraft
Cessna Model 337 series aircraft modified in accordance with Robertson Aircraft Corporation STC SA1627WE, including specific serial numbers listed in the AD.
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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