AD 79-02-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-44-180 | Airworthiness Directives; Piper Model PA-44-180 Airplanes |
Unsafe Condition
Fuel leakage due to damaged fuel supply lines part number 86238-03 where the line passes through the rib lightening hole flange.
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Required Actions
Remove inspection plates on the underside of left and right wings inboard of the engine nacelle, inspect fuel supply lines for damage, replace damaged lines, install caterpillar grommet part number 63976-34 with cement, position line for minimum .125 inch clearance, reinstall plates, and record maintenance.
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Compliance Time
within the next 10 hours' time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Piper Model PA-44-180, serial numbers 44-7995001 through 44-7995003, 44-7995005 through 44-7995023, 44-7995025 through 44-7995053, 44-7995055 through 44-7995064, 44-7995066, 67, 69, 71, 73, and 74
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Federal Register Abstract
Fuel Supply Lines
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-02-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-02-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-44-180 Airplanes Subject: Fuel Supply Lines Status: Current Citation: This information is not available. Citation Publish Date: 01/22/1979 Effective Date: 01/24/1979 Make: Piper Aircraft Inc. Model: PA-44-180 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 79-02-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3398 AD NUMBER: 79-02-02 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-44-180 Airplanes ACTION: SUMMARY: DATES: Effective January 24, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-02-02 PIPER AIRCRAFT CORPORATION: Amendment 39-3398. Applies to Model PA-44-180, serial numbers 44-7995001 through 44-7995003, 44-7995005 through 44-7995023, 44-7995025 through 44-7995053, 44-7995055 through 44-7995064, 44-7995066, 67, 69, 71, 73, and 74 airplanes certificated in all categories. Compliance is required within the next 10 hours' time in service after the effective date of this AD unless already accomplished. To prevent fuel leakage due to a damaged fuel line, accomplish the following: (a) Remove the inspection plate (or plates) on the underside of the left and right wings, in the area of the electric fuel boost pump, inboard of the engine nacelle. (b) Inspect the fuel supply lines part number 86238-03 (Left and Right), where the line passes through the rib lightening hole, for damage due to interference with the hole flange. If a fuel supply line is damaged, replace it with a serviceable line. (c) Install a caterpillar grommet, part number 63976-34 (MS21266-1N) on the lower half of the rib lightening hole flange in both wings using a suitable cement to retain the grommet in position. (d) Position the fuel supply line to obtain a minimum clearance of .125 inch from the caterpillar grommet. (e) Reinstall the inspection plates on the left and right wings. (f) Make an appropriate maintenance record entry. (g) An alternate method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. NOTE: Piper Service Bulletin; 627, dated October 24, 1978, pertains to this subject. This amendment becomes effective January 24, 1979. FOOTER:
Document Text
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AD Final Rules - DRS_79-02-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-02-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-44-180 Airplanes Subject: Fuel Supply Lines Status: Current Citation: This information is not available. Citation Publish Date: 01/22/1979 Effective Date: 01/24/1979 Make: Piper Aircraft Inc. Model: PA-44-180 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: 79-02-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3398 AD NUMBER: 79-02-02 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-44-180 Airplanes ACTION: SUMMARY: DATES: Effective January 24, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-02-02 PIPER AIRCRAFT CORPORATION: Amendment 39-3398. Applies to Model PA-44-180, serial numbers 44-7995001 through 44-7995003, 44-7995005 through 44-7995023, 44-7995025 through 44-7995053, 44-7995055 through 44-7995064, 44-7995066, 67, 69, 71, 73, and 74 airplanes certificated in all categories. Compliance is required within the next 10 hours' time in service after the effective date of this AD unless already accomplished. To prevent fuel leakage due to a damaged fuel line, accomplish the following: (a) Remove the inspection plate (or plates) on the underside of the left and right wings, in the area of the electric fuel boost pump, inboard of the engine nacelle. (b) Inspect the fuel supply lines part number 86238-03 (Left and Right), where the line passes through the rib lightening hole, for damage due to interference with the hole flange. If a fuel supply line is damaged, replace it with a serviceable line. (c) Install a caterpillar grommet, part number 63976-34 (MS21266-1N) on the lower half of the rib lightening hole flange in both wings using a suitable cement to retain the grommet in position. (d) Position the fuel supply line to obtain a minimum clearance of .125 inch from the caterpillar grommet. (e) Reinstall the inspection plates on the left and right wings. (f) Make an appropriate maintenance record entry. (g) An alternate method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. NOTE: Piper Service Bulletin; 627, dated October 24, 1978, pertains to this subject. This amendment becomes effective January 24, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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