# AD 66-30-07: Fuel Purge Valve Hose Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-24-400
- Effective: December 23, 1966
- Published: December 13, 1966
- Issued: December 6, 1966
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-217
- Registered aircraft: 75 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CFAEB707C533F2CE8625699700580DAC.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/66-30-07

## The airworthiness directive

66-30-07 PIPER: Amdt. 39-217 Part 39 Federal Register December 13, 1966. Applies to Model PA-24-400 Airplanes, Serial Numbers 26-1 through 26-148, Equipped with Fuel Purge Valve Installation in Accordance with Piper Service Letter No. 451 Dated May 14, 1965, and Piper Service Bulletin No. 228 Dated January 7, 1966.

Compliance required within 10 hours' time in service after the effective date of this AD.

To prevent further incidents of deterioration and leakage occurring inside the asbestos covered fuel purge valve hose, disconnect the fuel purge line P/N 25551-04 at the fuel injector outlet fitting and remove the fuel purge line from the airplane. Cap the outlet fitting with an AN929-4 cap unless a fuel purge hose replacement Kit No. 757099 is installed.

NOTE: Piper telegram dated October 14, 1966, to all Piper distributors covers this subject.

This supersedes AD 66-08-06.

This directive effective December 23, 1966.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A15](https://openairdocs.org/tcds/1A15): Piper Aircraft Inc.; names 1 of 4 models: PA-24-400

## 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: 75 (75 by airframe model, 0 by engine model)
- Makers: Piper 75

Models with the most aircraft:

- [Piper PA-24-400](https://openairdocs.org/model/piper-pa-24-400): 75 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/66-30-07/models.md
Every aircraft: https://openairdocs.org/ad/66-30-07/aircraft.md

Its text cites no advisory circulars or STCs.

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