# AD 61-22-07: Fuel and Oil Pressure Gage Lines

- Type: Airworthiness directive
- Status: Current
- Products: Mooney M20, M20A and M20B
- Effective: November 2, 1961
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 179 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/999C29D49686364D86256A3B006B8DD0.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/61-22-07

## The airworthiness directive

61-22-07 MOONEY: Amdt. 359 Part 507 Federal Register November 2, 1961. Applies to the M-20, M-20A, and M-20B Aircraft, Serial Numbers 1001 Through 1875.

Compliance required within 25 hours' time in service after the effective date of this AD unless already accomplished.

To prevent failures of the fuel and oil pressure gage lines in the accessory compartment, the following replacement is required:

Replace the copper fuel and oil pressure gage lines from the firewall to the engine pickup location with flexible hose in accordance with Mooney Service Letter 20-82A or replace with other FAA approved equivalent lines or fittings.

(Mooney Service Letter 20-82A covers this same subject.)

This directive effective November 2, 1961.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A3](https://openairdocs.org/tcds/2A3): Mooney International Corporation; names 3 of 17 models: M20A, M20B, M20

## 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: 179 (179 by airframe model, 0 by engine model)
- Makers: Mooney 179

Models with the most aircraft:

- [Mooney M20B](https://openairdocs.org/model/mooney-m20b): 98 aircraft (airframe model)
- [Mooney M20A](https://openairdocs.org/model/mooney-m20a): 58 aircraft (airframe model)
- [Mooney M20](https://openairdocs.org/model/mooney-m20): 23 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/61-22-07/models.md
Every aircraft: https://openairdocs.org/ad/61-22-07/aircraft.md

Its text cites no advisory circulars or STCs.

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