AD 89-15-10

final rule

TEXTRON LYCOMING Model TIO-540-AE2A Engines

AD Number
89-15-10
Status
final_rule
Effective Date
Product Category
engine
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft fuel pump, filter, valve, and lines
Problem area Fuel system

Applicability

TypeManufacturerModelDetails
engine Lycoming Engines TIO-540-AE2A TEXTRON LYCOMING Model TIO-540-AE2A Engines

Unsafe Condition

Engine roughness and loss of engine power due to a defective engine pump diaphragm causing fuel leakage at the upper deck left nozzle vent manifold or fuel pump vent hose check valve.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Perform a fuel leak check at the upper deck left nozzle vent manifold or fuel pump vent hose check valve. Replace pump with a new or serviceable pump if fuel is observed. Install restrictor type tee fitting P/N 02A21171 (Piper P/N 766-224) by removing tee fitting P/N AN-825-4. Ferry aircraft under FAR 21.197 and 21.199 if needed.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within 5 hours in service after the effective date of this AD unless already accomplished

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

TEXTRON LYCOMING Model TIO-540-AE2A engines with serial numbers up to and including L9064-61A installed in Piper PA-46-350P airplanes certified in any category

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Nozzle Vent Manifold

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_89-15-10.html
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AD Number:
89-15-10
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
TEXTRON LYCOMING Model TIO-540-AE2A Engines
Subject:
Nozzle Vent Manifold
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/30/1989
Make:
Lycoming Engines
Model:
TIO-540-AE2A
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Superseded AD: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Superseded By: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: 89-15-10
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6377

AD NUMBER:   89-15-10

SUBJECT HEADING:   TEXTRON LYCOMING Model TIO-540-AE2A Engines

ACTION:  

SUMMARY:  

DATES:   Effective November 30, 1989.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-15-10 TEXTRON LYCOMING: Amendment 39-6377. Final copy of Priority Letter AD.
Applicability: Model TIO-540-AE2A engines (with serial numbers up to and including L9064-61A) installed in Piper PA-46-350P airplanes certified in any category.
Compliance: Required within 5 hours in service after the effective date of this AD unless already accomplished.
To prevent engine roughness and loss of engine power, accomplish the following:
(a) Perform a fuel leak check at the upper deck left nozzle vent manifold or at the fuel pump vent hose check valve in accordance with Appendix I and Appendix II of this AD. Observe if any fuel emerges at the disconnected line with the aircraft emergency boost pump operating. If fuel is observed, the engine pump diaphragm is considered defective. Prior to further flight, replace pump with a new or serviceable pump and repeat the above leak check.
(b) Remove tee fitting P/N AN-825-4 from the engine fuel pump vent and install restrictor type tee fitting P/N 02A21171 (Piper P/N 766-224) in accordance with Appendix I and Appendix II of this AD.
(c) Aircraft may be ferried in accordance with the provisions of FAR's 21.197 and 21.199 to a base where the AD can be accomplished.
(d) Upon submission of substantiating data by an owner or operator through an FAA Airworthiness Inspector, an alternate method of compliance with the requirements of this AD or adjustments to the compliance schedule specified in this AD may be approved by the Manager, New York Aircraft Certification Office, Engine and Propeller Directorate, Aircraft Certification Service, Federal Aviation Administration, Room 202, 181 South Franklin Avenue, Valley Stream, New York 11581.
This amendment (39-6377, AD 89-15-10) becomes effective on November 30, 1989, as to all persons except those persons to whom it was made immediately effective by priority letter AD No. 89-15-10, issued on July 26, 1989, which contained this amendment.

APPENDIX I
NOTE: TEXTRON Lycoming Service Bulletin No. 487, dated July 7, 1989, pertain to these inspections.

APPENDIX II
NOTE: PIPER Service Bulletin No. 915, dated July 8, 1989, pertain to these inspections.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_89-15-10.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
89-15-10
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
TEXTRON LYCOMING Model TIO-540-AE2A Engines
Subject:
Nozzle Vent Manifold
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/30/1989
Make:
Lycoming Engines
Model:
TIO-540-AE2A
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: 89-15-10
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6377

AD NUMBER:   89-15-10

SUBJECT HEADING:   TEXTRON LYCOMING Model TIO-540-AE2A Engines

ACTION:  

SUMMARY:  

DATES:   Effective November 30, 1989.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-15-10 TEXTRON LYCOMING: Amendment 39-6377. Final copy of Priority Letter AD.
Applicability: Model TIO-540-AE2A engines (with serial numbers up to and including L9064-61A) installed in Piper PA-46-350P airplanes certified in any category.
Compliance: Required within 5 hours in service after the effective date of this AD unless already accomplished.
To prevent engine roughness and loss of engine power, accomplish the following:
(a) Perform a fuel leak check at the upper deck left nozzle vent manifold or at the fuel pump vent hose check valve in accordance with Appendix I and Appendix II of this AD. Observe if any fuel emerges at the disconnected line with the aircraft emergency boost pump operating. If fuel is observed, the engine pump diaphragm is considered defective. Prior to further flight, replace pump with a new or serviceable pump and repeat the above leak check.
(b) Remove tee fitting P/N AN-825-4 from the engine fuel pump vent and install restrictor type tee fitting P/N 02A21171 (Piper P/N 766-224) in accordance with Appendix I and Appendix II of this AD.
(c) Aircraft may be ferried in accordance with the provisions of FAR's 21.197 and 21.199 to a base where the AD can be accomplished.
(d) Upon submission of substantiating data by an owner or operator through an FAA Airworthiness Inspector, an alternate method of compliance with the requirements of this AD or adjustments to the compliance schedule specified in this AD may be approved by the Manager, New York Aircraft Certification Office, Engine and Propeller Directorate, Aircraft Certification Service, Federal Aviation Administration, Room 202, 181 South Franklin Avenue, Valley Stream, New York 11581.
This amendment (39-6377, AD 89-15-10) becomes effective on November 30, 1989, as to all persons except those persons to whom it was made immediately effective by priority letter AD No. 89-15-10, issued on July 26, 1989, which contained this amendment.

APPENDIX I
NOTE: TEXTRON Lycoming Service Bulletin No. 487, dated July 7, 1989, pertain to these inspections.

APPENDIX II
NOTE: PIPER Service Bulletin No. 915, dated July 8, 1989, pertain to these inspections.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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