AD 79-15-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming Engines | LO-360-A1G6D | AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines |
| engine | Lycoming Engines | O-360-A1G6D | AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines |
Unsafe Condition
Inflight power loss due to loosening of the internal economizer channel plug in the Model HA-6 carburetor.
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Required Actions
Remove part number 80-150 plug and replace with part number 80-364 plug in accordance with Avco Lycoming Service Bulletin No. 434 or FAA approved equivalent.
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Compliance Time
within the next 10 hours in service after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Avco Lycoming O-360-A1G6D engines with Serial Numbers prior to L-26456-36A except listed exceptions, and LO-360-A1G6D engines with Serial Numbers prior to L-296-71A except listed exceptions.
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Federal Register Abstract
Channel Plug In Carburetor
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-15-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-15-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines Subject: Channel Plug In Carburetor Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/20/1979 Make: Lycoming Engines Model: LO-360-A1G6D | O-360-A1G6D Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-15-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3516 AD NUMBER: 79-15-02 SUBJECT HEADING: AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines ACTION: SUMMARY: DATES: Effective July 20, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-15-02 AVCO LYCOMING: Amendment 39-3516. Applies to Avco Lycoming O-360-A1G6D engines with Serial Numbers prior to L-26456-36A except L-23465-36A, L-23783-36A, L-23865-36A, L-24278-36A, L-25075-36A, L-25129-36A, L-25131-36A, L-25998-36A, L-26069-36A through L-26071-36A, L-26073-36A through L-26076-36A, L-26123-36A through L-26128-36A, L-26130-36A, L-26131-36A, L-26139-36A, L-26205-36A through L-26207-36A, L-26236-36A through L-26242-36A, L-26278-36A, L-26281-36A through L-26283-36A, and to the Avco Lycoming LO-360-A1G6D engines with Serial Numbers prior to L-296-71A except L-102-71A, L-107-71A, L-109-71A, L-113-71A, L-158-71A, L-171-71A, L-237-71A, L-246-71A, L-250- 71A, L-255-71A, L-256-71A, L-259-71A through L-273-71A, L-275-71A through L-282-71A, L-284-71A through L-286-71A, L-289-71A. Compliance required within the next 10 hours in service after the effective date of this AD, unless previously accomplished. To prevent inflight power loss due to loosening of the internal economizer channel plug in the Model HA-6 carburetor, remove the P/N 80-150 plug and replace with P/N 80-364 plug in accordance with Avco Lycoming Service Bulletin No. 434 or FAA approved equivalent. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Eastern Region. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the compliance time specified in this AD. Note. Marvel-Schebler/Tillotson Service Bulletin A1-79 and Beechcraft Service Instructions No. 1045 also pertains to this subject. This amendment is effective July 20, 1979. FOOTER:
Document Text
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AD Final Rules - DRS_79-15-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-15-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines Subject: Channel Plug In Carburetor Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/20/1979 Make: Lycoming Engines Model: LO-360-A1G6D | O-360-A1G6D Product Type: Engine 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: 79-15-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3516 AD NUMBER: 79-15-02 SUBJECT HEADING: AVCO LYCOMING Model O-360-A1G6D and LO-360-A1G6D Engines ACTION: SUMMARY: DATES: Effective July 20, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-15-02 AVCO LYCOMING: Amendment 39-3516. Applies to Avco Lycoming O-360-A1G6D engines with Serial Numbers prior to L-26456-36A except L-23465-36A, L-23783-36A, L-23865-36A, L-24278-36A, L-25075-36A, L-25129-36A, L-25131-36A, L-25998-36A, L-26069-36A through L-26071-36A, L-26073-36A through L-26076-36A, L-26123-36A through L-26128-36A, L-26130-36A, L-26131-36A, L-26139-36A, L-26205-36A through L-26207-36A, L-26236-36A through L-26242-36A, L-26278-36A, L-26281-36A through L-26283-36A, and to the Avco Lycoming LO-360-A1G6D engines with Serial Numbers prior to L-296-71A except L-102-71A, L-107-71A, L-109-71A, L-113-71A, L-158-71A, L-171-71A, L-237-71A, L-246-71A, L-250- 71A, L-255-71A, L-256-71A, L-259-71A through L-273-71A, L-275-71A through L-282-71A, L-284-71A through L-286-71A, L-289-71A. Compliance required within the next 10 hours in service after the effective date of this AD, unless previously accomplished. To prevent inflight power loss due to loosening of the internal economizer channel plug in the Model HA-6 carburetor, remove the P/N 80-150 plug and replace with P/N 80-364 plug in accordance with Avco Lycoming Service Bulletin No. 434 or FAA approved equivalent. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Eastern Region. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the compliance time specified in this AD. Note. Marvel-Schebler/Tillotson Service Bulletin A1-79 and Beechcraft Service Instructions No. 1045 also pertains to this subject. This amendment is effective July 20, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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