AD 86-08-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | TSIO-520-BE | TELEDYNE CONTINENTAL MOTORS Model TSIO-520- BE |
Unsafe Condition
Failure of the engine driven fuel pump assembly (P/N 646571-1) could result in loss of engine power.
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Required Actions
Remove the engine driven fuel pump assembly (P/N 646571-1) and replace with fuel pump assembly (P/N 649374-1).
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Compliance Time
Prior to further flight
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Affected Aircraft
TELEDYNE CONTINENTAL MOTORS Model TSIO-520-BE engines with serial numbers 528026, 528222, 528233, 528246, 528085, 528223, 528234, 528252, 528205, 528224, 528235, 528253, 528208, 528225, 528236, 528254, 528215, 528226, 528237, 528255, 528216, 528227, 528238, 528256, 528217, 528228, 528239, 528259, 528219, 528229, 528240, 528260, 528220, 528230, 528242, 528263, 528221, 528231, 528243 installed on Piper PA-46 (Malibu) airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fuel Pump Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_86-08-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 86-08-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: TELEDYNE CONTINENTAL MOTORS Model TSIO-520- BE Subject: Fuel Pump Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Continental Motors Model: TSIO-520-BE Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 86-08-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 86-08-07 SUBJECT HEADING: TELEDYNE CONTINENTAL MOTORS Model TSIO-520- BE ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 86-08-07 TELEDYNE CONTINENTAL MOTORS: Letter issued April 21, 1986. Applies to TSIO-520- BE reciprocating engines with the following serial numbers installed on Piper PA-46 (Malibu) airplanes: ENGINE SERIAL NUMBERS 528026 528222 528233 528246 528085 528223 528234 528252 528205 528224 528235 528253 528208 528225 528236 528254 528215 528226 528237 528255 528216 528227 528238 528256 528217 528228 528239 528259 528219 528229 528240 528260 528220 528230 528242 528263 528221 528231 528243 Prior to further flight, remove the engine driven fuel pump assembly (P/N 646571-1) and replace with fuel pump assembly (P/N 649374-1). Upon request, an equivalent means of compliance with the requirements of this priority letter AD may be approved by the Manager, Atlanta Aircraft Certification Office, 1075 Inner Loop Road, College Park, Georgia 30337. This airworthiness directive is effective upon receipt. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_86-08-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 86-08-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: TELEDYNE CONTINENTAL MOTORS Model TSIO-520- BE Subject: Fuel Pump Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Continental Motors Model: TSIO-520-BE 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: 86-08-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 86-08-07 SUBJECT HEADING: TELEDYNE CONTINENTAL MOTORS Model TSIO-520- BE ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 86-08-07 TELEDYNE CONTINENTAL MOTORS: Letter issued April 21, 1986. Applies to TSIO-520- BE reciprocating engines with the following serial numbers installed on Piper PA-46 (Malibu) airplanes: ENGINE SERIAL NUMBERS 528026 528222 528233 528246 528085 528223 528234 528252 528205 528224 528235 528253 528208 528225 528236 528254 528215 528226 528237 528255 528216 528227 528238 528256 528217 528228 528239 528259 528219 528229 528240 528260 528220 528230 528242 528263 528221 528231 528243 Prior to further flight, remove the engine driven fuel pump assembly (P/N 646571-1) and replace with fuel pump assembly (P/N 649374-1). Upon request, an equivalent means of compliance with the requirements of this priority letter AD may be approved by the Manager, Atlanta Aircraft Certification Office, 1075 Inner Loop Road, College Park, Georgia 30337. This airworthiness directive is effective upon receipt. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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