AD 80-08-14
final rule
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 |
| appliance | 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.
AI-generated summary from the source AD text. Verify against the official source before acting.
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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days from the effective date of this AD, unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All aircraft using Pure-Air, Inc. Carburetor Air Inlet Filter installed per STC SA69NW.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Carburetor Air Inlet Filter
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_80-08-14.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 80-08-14 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; PURE-AIR, INC.: Applies to all Aircraft using the Pure-Air, Inc. Carbure...Show more Subject: Carburetor Air Inlet Filter Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/22/1980 Make: Pure Air, Inc. Model: Carburetor Air Inlet Filter Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 80-08-14 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3745 AD NUMBER: 80-08-14 SUBJECT HEADING: Airworthiness Directives; PURE-AIR, INC.: Applies to all Aircraft using the Pure-Air, Inc. Carburetor Air Inlet Filter ACTION: SUMMARY: DATES: Effective April 22, 1980. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 80-08-14 PURE-AIR, INC.: Amendment 39-3745. Applies to all aircraft using the Pure-Air, Inc. carburetor air inlet filter installed per STC SA69NW. Compliance is required as indicated. A. Within 60 days from the effective date of this AD, unless already accomplished. 1. Remove Pure-Air filter foam elements which have been installed for more than 100 hours time in service or one year, whichever occurs first, and install screen (PN M-117 Large or PN M-118 Small) on the downstream inside surface of the filter box (PN M-102 Large or PN M-101 Small) by means of the filter attach bolts. 2. Replace each Pure-Air filter element which has accumulated either 100 hours or one year in service with a new filter element. B. Replace the foam filter element: 1. Every 100 hours time in service or 12 calendar months, whichever comes first. 2. Any time the filter element becomes 50% covered with any foreign material. C. Install the new Pure-Air supplies decal, which reflects the above replacement times, in plain view on the upper right hand outside surface of the filter box. This amendment becomes effective April 22, 1980. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_80-08-14.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 80-08-14 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; PURE-AIR, INC.: Applies to all Aircraft using the Pure-Air, Inc. Carbure...Show more Subject: Carburetor Air Inlet Filter Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/22/1980 Make: Pure Air, Inc. Model: Carburetor Air Inlet Filter Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 80-08-14 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3745 AD NUMBER: 80-08-14 SUBJECT HEADING: Airworthiness Directives; PURE-AIR, INC.: Applies to all Aircraft using the Pure-Air, Inc. Carburetor Air Inlet Filter ACTION: SUMMARY: DATES: Effective April 22, 1980. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 80-08-14 PURE-AIR, INC.: Amendment 39-3745. Applies to all aircraft using the Pure-Air, Inc. carburetor air inlet filter installed per STC SA69NW. Compliance is required as indicated. A. Within 60 days from the effective date of this AD, unless already accomplished. 1. Remove Pure-Air filter foam elements which have been installed for more than 100 hours time in service or one year, whichever occurs first, and install screen (PN M-117 Large or PN M-118 Small) on the downstream inside surface of the filter box (PN M-102 Large or PN M-101 Small) by means of the filter attach bolts. 2. Replace each Pure-Air filter element which has accumulated either 100 hours or one year in service with a new filter element. B. Replace the foam filter element: 1. Every 100 hours time in service or 12 calendar months, whichever comes first. 2. Any time the filter element becomes 50% covered with any foreign material. C. Install the new Pure-Air supplies decal, which reflects the above replacement times, in plain view on the upper right hand outside surface of the filter box. This amendment becomes effective April 22, 1980. FOOTER:
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Retrieved: Apr 8, 2026
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