AD 75-01-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | T5313B | AVCO LYCOMING Model T5313B Engines |
Unsafe Condition
Centrifugal compressor impeller assembly vane failures leading to performance deterioration and partial or complete power loss.
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Required Actions
Remove centrifugal compressor impeller assemblies with part numbers 1-100-078-03, 1-100-078-04, and 1-100-078-10, and replace them with part number 1-100-078-08.
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Compliance Time
prior to the accumulation of 100 hours time in service after the effective date of this AD
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Affected Aircraft
Avco Lycoming T5313B turboshaft engines with centrifugal compressor impeller assemblies having part numbers 1-100-078-03, 1-100-078-04, or 1-100-078-10.
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Federal Register Abstract
Compressor Impeller Assembly Vane
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-01-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-01-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING Model T5313B Engines Subject: Compressor Impeller Assembly Vane Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/17/1975 Make: Honeywell International Inc. Model: T5313B Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-01-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2063 AD NUMBER: 75-01-05 SUBJECT HEADING: AVCO LYCOMING Model T5313B Engines ACTION: SUMMARY: DATES: Effective January 17, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-01-05 AVCO LYCOMING: Amendment 39-2063. Applies to all Avco Lycoming T5313B turboshaft engines. Compliance required, unless already accomplished, prior to the accumulation of 100 hours time in service after the effective date of this AD. To prevent possible centrifugal compressor impeller assembly vane failures leading to performance deterioration and partial or complete power loss, remove centrifugal compressor impeller assemblies, part numbers 1-100-078-03, 1-100-078-04, and 1-100-078-10 and replace with centrifugal compressor impeller assembly, part number 1-100-078-08. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. NOTE: (Avco Lycoming Service Bulletin Number 0042 pertains to this subject.) This amendment becomes effective January 17, 1975 FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_75-01-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-01-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING Model T5313B Engines Subject: Compressor Impeller Assembly Vane Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/17/1975 Make: Honeywell International Inc. Model: T5313B 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: 75-01-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2063 AD NUMBER: 75-01-05 SUBJECT HEADING: AVCO LYCOMING Model T5313B Engines ACTION: SUMMARY: DATES: Effective January 17, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-01-05 AVCO LYCOMING: Amendment 39-2063. Applies to all Avco Lycoming T5313B turboshaft engines. Compliance required, unless already accomplished, prior to the accumulation of 100 hours time in service after the effective date of this AD. To prevent possible centrifugal compressor impeller assembly vane failures leading to performance deterioration and partial or complete power loss, remove centrifugal compressor impeller assemblies, part numbers 1-100-078-03, 1-100-078-04, and 1-100-078-10 and replace with centrifugal compressor impeller assembly, part number 1-100-078-08. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. NOTE: (Avco Lycoming Service Bulletin Number 0042 pertains to this subject.) This amendment becomes effective January 17, 1975 FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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Related Airworthiness Directives
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