# AD 80-18-03: Fuel Pressure System

- Type: Airworthiness directive
- Status: Current
- Products: Aerostar PA-60-601 (Aerostar 601) and PA-60-601P (Aerostar 601P)
- Effective: October 6, 1980
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-3900
- Registered aircraft: 9 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/960510C59DF733E4862569AF007669CC.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/80-18-03

## The airworthiness directive

80-18-03 PIPER (Ted Smith): Amendment 39-3900. Applies to Aerostar Model 601 and 601P series airplanes certificated in all categories.

Compliance required as indicated, unless already accomplished.

To prevent possible engine failure due to excessive lean fuel/air mixture, accomplish the following:

  (a) Within 30 days from the effective date of this AD, index and mark the left hand and right hand engine fuel pressure gauges with a yellow arc between the 12 psi and 18 psi range, and incorporate provisions in the Airplane Flight Manual Operations Limitations Section as follows:

1. In the Power Plant Instruments paragraph and under the Yellow ARC Caution column of the fuel pressure data add "12 -18 psi"

2. In the Fuel System Limitations paragraph add the statement "Fuel boost pump must be "ON" when fuel pressure indication is less than 18 psi and engine is operating above idle power."

  (b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modifications required by this AD.

  (c) Alternative modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region.

This amendment becomes effective October 6, 1980.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A17WE](https://openairdocs.org/tcds/A17WE): Aerostar Aircraft Corporation; names 2 of 5 models: PA-60-601P (Aerostar 601P), PA-60-601 (Aerostar 601)

## 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: 9 (9 by airframe model, 0 by engine model)
- Makers: Piper 9

Models with the most aircraft:

- [Piper PA-60-601P](https://openairdocs.org/model/piper-pa-60-601p): 9 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/80-18-03/models.md
Every aircraft: https://openairdocs.org/ad/80-18-03/aircraft.md

Its text cites no advisory circulars or STCs.

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