AD 74-22-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | T5313A | AVCO LYCOMING T5313A Engines |
Unsafe Condition
Compressor disk or centrifugal impeller assembly failures leading to partial or complete loss of engine power.
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Required Actions
Remove and replace the first, second, third, fourth, and fifth stage compressor rotor disks and centrifugal impeller assemblies in accordance with the specified part numbers.
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Compliance Time
prior to the accumulation of 100 hours in service after the effective date of this AD
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Affected Aircraft
Avco Lycoming T5313A turboshaft engines
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Federal Register Abstract
Compressor Rotor Disks
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_74-22-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-22-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING T5313A Engines Subject: Compressor Rotor Disks Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/31/1974 Make: Honeywell International Inc. Model: T5313A Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 74-22-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1997 AD NUMBER: 74-22-07 SUBJECT HEADING: AVCO LYCOMING T5313A Engines ACTION: SUMMARY: DATES: Effective October 31, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-22-07 AVCO LYCOMING: Amendment 39-1997. Applies to all Avco Lycoming T5313A turboshaft engines. Compliance required, unless already accomplished, prior to the accumulation of 100 hours in service after the effective date of this AD. To prevent possible compressor disk or centrifugal impeller assembly failures leading to partial or complete loss of engine power, remove and replace the first, second, third, fourth, and fifth stage compressor rotor disks and centrifugal impeller assemblies in accordance with the table below. Remove P/N 1st Stage Compressor 1-100-700-05 Rotor Disk Assembly Socket Head Cap Screw 1-100-214-06 2nd Stage Compressor 1-100-710-05 Rotor Disk Assembly 1-100-710-09 1-100-710-10 3rd Stage Compressor 1-100-230-06 Rotor Disk Assembly 1-100-230-07 4th Stage Compressor 1-100-240-08 Rotor Disk Assembly 1-100-240-10 1-100-240-15 5th Stage Compressor 1-100-450-09 Rotor Disk Assembly 1st Stage Compressor 1-100-201-05 Rotor Spacer 2nd Stage Compressor 1-100-202-03 Rotor Spacer 3rd Stage Compressor 1-100-203-03 Rotor Spacer 4th Stage Compressor 1-100-204-06 Rotor Spacer 5th Stage Compressor 1-100-416-07 Rotor Spacer Sleeve Seal 1-100-482-01 Centrifugal Compressor 1-100-440-07 Impeller Assembly Compressor Rotor 1-100-207-05 Sleeve Compressor Rear Shaft 1-100-137-04 Install P/N Front Shaft Assembly 1-101-080-01 Socket Head Cap Screw 1-100-506-02 Compressor Rotor 1-101-090-02 Subassembly Centrifugal Compressor 1-100-078-08 Impeller Assembly Compressor Rear Shaft 1-100-501-01 Lock Cup Washer 1-100-148-01 Double Hexagon Extended 1-100-502-02 Washer Head Bolt Upon submission of substantiating data through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, FAA, New England Region, may adjust the compliance time. NOTE: (Avco Lycoming Service Bulletin Number 0037 pertains to this subject.) This amendment is effective October 31, 1974. FOOTER:
Document Text
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AD Final Rules - DRS_74-22-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-22-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: AVCO LYCOMING T5313A Engines Subject: Compressor Rotor Disks Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/31/1974 Make: Honeywell International Inc. Model: T5313A 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 74-22-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1997 AD NUMBER: 74-22-07 SUBJECT HEADING: AVCO LYCOMING T5313A Engines ACTION: SUMMARY: DATES: Effective October 31, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-22-07 AVCO LYCOMING: Amendment 39-1997. Applies to all Avco Lycoming T5313A turboshaft engines. Compliance required, unless already accomplished, prior to the accumulation of 100 hours in service after the effective date of this AD. To prevent possible compressor disk or centrifugal impeller assembly failures leading to partial or complete loss of engine power, remove and replace the first, second, third, fourth, and fifth stage compressor rotor disks and centrifugal impeller assemblies in accordance with the table below. Remove P/N 1st Stage Compressor 1-100-700-05 Rotor Disk Assembly Socket Head Cap Screw 1-100-214-06 2nd Stage Compressor 1-100-710-05 Rotor Disk Assembly 1-100-710-09 1-100-710-10 3rd Stage Compressor 1-100-230-06 Rotor Disk Assembly 1-100-230-07 4th Stage Compressor 1-100-240-08 Rotor Disk Assembly 1-100-240-10 1-100-240-15 5th Stage Compressor 1-100-450-09 Rotor Disk Assembly 1st Stage Compressor 1-100-201-05 Rotor Spacer 2nd Stage Compressor 1-100-202-03 Rotor Spacer 3rd Stage Compressor 1-100-203-03 Rotor Spacer 4th Stage Compressor 1-100-204-06 Rotor Spacer 5th Stage Compressor 1-100-416-07 Rotor Spacer Sleeve Seal 1-100-482-01 Centrifugal Compressor 1-100-440-07 Impeller Assembly Compressor Rotor 1-100-207-05 Sleeve Compressor Rear Shaft 1-100-137-04 Install P/N Front Shaft Assembly 1-101-080-01 Socket Head Cap Screw 1-100-506-02 Compressor Rotor 1-101-090-02 Subassembly Centrifugal Compressor 1-100-078-08 Impeller Assembly Compressor Rear Shaft 1-100-501-01 Lock Cup Washer 1-100-148-01 Double Hexagon Extended 1-100-502-02 Washer Head Bolt Upon submission of substantiating data through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, FAA, New England Region, may adjust the compliance time. NOTE: (Avco Lycoming Service Bulletin Number 0037 pertains to this subject.) This amendment is effective October 31, 1974. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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