# AD 80-02-12: Fuselage Tubular Structure

- Type: Airworthiness directive
- Status: Current
- Products: Mooney M20K
- Effective: February 1, 1980
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-3670
- Registered aircraft: 771 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C1636488154667CD86256A4D00498820.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/80-02-12

## The airworthiness directive

80-02-12 MOONEY AIRCRAFT CORPORATION: Amendment 39-3670. Applies to Models M20K airplanes, Serial Numbers 25-0001 through 25-0247, certificated in all categories.

Compliance is required as indicated unless already accomplished.

To prevent possible failure of the fuselage tubular structure, accomplish the following: 1. Within the next 90 days after the effective date of the AD, reinforce the lower right fuselage tubular structure with a split-sleeve and clamps in accordance with Mooney Service Bulletin No. M20-220 dated November 16, 1979, or equivalent methods approved by the Chief, Engineering and Manufacturing Branch, FAA, Southwest Region.

2. Aircraft may be flown in accordance with FAR 21.197(a)(1) to a location where the modification required by this AD may be accomplished.

This amendment becomes effective February 1, 1980.

## 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 1 of 17 models: M20K

## 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: 771 (771 by airframe model, 0 by engine model)
- Makers: Mooney 771

Models with the most aircraft:

- [Mooney M20K](https://openairdocs.org/model/mooney-m20k): 771 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/80-02-12/models.md
Every aircraft: https://openairdocs.org/ad/80-02-12/aircraft.md

Its text cites no advisory circulars or STCs.

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