AD 80-08-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pure Air, Inc. | Carburetor Air Inlet Filter | Airworthiness Directives; PURE-AIR, INC.: Applies to all Aircraft using the Pure-Air, Inc. Carburetor Air Inlet Filter |
Unsafe Condition
The Pure-Air, Inc. carburetor air inlet filter foam elements can degrade or become contaminated, leading to restricted airflow or engine malfunction.
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Required Actions
Remove foam elements exceeding 100 hours time in service or one year, install screen (PN M-117/Large or PN M-118/Small) on filter box. Replace elements every 100 hours or 12 months, or when 50% covered with foreign material. Install decal indicating replacement schedule.
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Compliance Time
Within 60 days from the effective date of this AD, unless already accomplished.
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Affected Aircraft
All aircraft using Pure-Air, Inc. Carburetor Air Inlet Filter installed per STC SA69NW.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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