AD 77-01-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-28-151 | Airworthiness Directives; Piper Model PA-28-151 Airplanes |
Unsafe Condition
Carburetor air filter boxes may not contain a drain hole in the lower rear corner of the outside half, which could allow moisture accumulation and lead to engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the carburetor air filter box (Piper Part Number 35462-00) for a drain hole in the lower rear corner. If absent, drill a 0.19 inch diameter hole, reassemble, and reinstall the filter box. Close the engine cowl and return to service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours' time in service after the effective date of this AD
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Affected Aircraft
Piper Model PA-28-151 airplanes, serial numbers 28-7415001 through 28-7715278 and 28-7715289
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Carburetor Air Filter Boxes
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-01-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-01-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-28-151 Airplanes Subject: Carburetor Air Filter Boxes Status: Current Citation: This information is not available. Citation Publish Date: 01/10/1977 Effective Date: 01/14/1977 Make: Piper Aircraft Inc. Model: PA-28-151 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-01-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2801 AD NUMBER: 77-01-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-28-151 Airplanes ACTION: SUMMARY: DATES: Effective January 14, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-01-03 PIPER AIRCRAFT CORPORATION: Amendment 39-2801. Applies to Model PA-28-151 airplanes, serial numbers 28-7415001 through 28-7715278 and 28-7715289 certificated in all categories. Compliance required within the next 10 hours' time in service after the effective date of this AD, unless already accomplished. To detect and correct those carburetor air filter boxes that do not contain a drain hole, accomplish the following: (a) Open the top right side engine cowl door to gain access to the carburetor air filter box, Piper Part Number 35462-00, at the right hand bottom section of the engine compartment. (b) Check visually and by feel to determine whether the carburetor air filter box contains a drain hole in the lower rear corner of the outside half of the carburetor air filter box. (See figure) This check may be performed by the pilot. AD 77-01-03 (c) If the box contains a drain hole, accomplish (f). (d) If the box does not contain a drain hole, accomplish (e) and (f). (e) Modify the carburetor air filter box as follows: (1) Remove and disassemble the carburetor air filter box. (2) Drill a .19 inch diameter hole in the lower rear corner of the outside half of the carburetor air filter box. (See figure) (3) Reassemble and reinstall the carburetor air filter box. (f) Close the engine cowl and return the airplane to service. Piper Service Bulletin 536 also pertains to this subject. This amendment becomes effective January 14, 1977. FOOTER:
Document Text
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AD Final Rules - DRS_77-01-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-01-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-28-151 Airplanes Subject: Carburetor Air Filter Boxes Status: Current Citation: This information is not available. Citation Publish Date: 01/10/1977 Effective Date: 01/14/1977 Make: Piper Aircraft Inc. Model: PA-28-151 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-01-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2801 AD NUMBER: 77-01-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-28-151 Airplanes ACTION: SUMMARY: DATES: Effective January 14, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-01-03 PIPER AIRCRAFT CORPORATION: Amendment 39-2801. Applies to Model PA-28-151 airplanes, serial numbers 28-7415001 through 28-7715278 and 28-7715289 certificated in all categories. Compliance required within the next 10 hours' time in service after the effective date of this AD, unless already accomplished. To detect and correct those carburetor air filter boxes that do not contain a drain hole, accomplish the following: (a) Open the top right side engine cowl door to gain access to the carburetor air filter box, Piper Part Number 35462-00, at the right hand bottom section of the engine compartment. (b) Check visually and by feel to determine whether the carburetor air filter box contains a drain hole in the lower rear corner of the outside half of the carburetor air filter box. (See figure) This check may be performed by the pilot. AD 77-01-03 (c) If the box contains a drain hole, accomplish (f). (d) If the box does not contain a drain hole, accomplish (e) and (f). (e) Modify the carburetor air filter box as follows: (1) Remove and disassemble the carburetor air filter box. (2) Drill a .19 inch diameter hole in the lower rear corner of the outside half of the carburetor air filter box. (See figure) (3) Reassemble and reinstall the carburetor air filter box. (f) Close the engine cowl and return the airplane to service. Piper Service Bulletin 536 also pertains to this subject. This amendment becomes effective January 14, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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