AD 91-21-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-24-260 | Airworthiness Directives; PIPER AIRCRAFT CORPORATION Model PA-24-260 Airplanes |
Unsafe Condition
Inadvertent engine stoppage while flying in weather conditions conducive to induction system icing.
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Required Actions
Install a manually controlled heated alternate air induction system in accordance with Piper Service Bulletin No. 861 or Supplemental Type Certificate SA2694CE. The modification must be done per the service bulletin and does not approve flight in icing conditions. Alternative methods may be approved by the FAA.
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Compliance Time
within the next 100 hours time-in-service after the effective date of this AD
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Affected Aircraft
Model PA-24-260 airplanes with serial numbers 24-3642, 24-4000 through 24-4255, 24-4257 through 24-4782, and 24-4784 through 24-4803 equipped with nonturbocharged fuel-injected engines.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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