# AD 86-08-07: Fuel Pump Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Continental Motors TSIO-520-BE
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Registered aircraft: 4,122 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/59F07A6FA931D00886256840006EA72A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/86-08-07

## The airworthiness directive

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.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E8CE](https://openairdocs.org/tcds/E8CE): Continental Aerospace Technologies, Inc.; names 1 of 31 models: TSIO-520-BE

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 4,122 (0 by airframe model, 4,122 by engine model)
- Makers: Cessna 3,179, Beech 672, Piper 182, Raytheon 61, Mooney 11, Meyers Industries 2, Navion 2, Ryan 2, Aero Commander 1, Cirrus Design 1

Models with the most aircraft:

- [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series): 4,064 aircraft (engine model)
- [TCM Cont TSIO-520 series](https://openairdocs.org/engine/tcm-cont-tsio-520-series): 49 aircraft (engine model)
- [Continental TSIO-520-BE](https://openairdocs.org/engine/continental-tsio-520-be): 9 aircraft (engine model)

All 3 models: https://openairdocs.org/ad/86-08-07/models.md
Every aircraft: https://openairdocs.org/ad/86-08-07/aircraft.md

Its text cites no advisory circulars or STCs.

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