# AD 77-14-08: Water in Fuselage

- Type: Airworthiness directive
- Status: Current
- Products: Textron 60, A60 and B60
- Effective: August 18, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2960
- Registered aircraft: 261 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E0EBBCE22D63AEFE86256A08007376DA.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/77-14-08

## The airworthiness directive

77-14-08 BEECH: Amendment 39-2960. Applies to Models 60 (Serial Number P-3 thru P-126 except P-123), A60 (Serial Numbers P-123, P-127 thru P-246), and B60 (Serial Numbers P-247 thru P-346) airplanes certified in all categories.

Compliance: Required as indicated, unless already accomplished.

To prevent collection of water in the bottom of the fuselage, subsequent freezing of the water and resulting restriction of elevator control, within the next 100 hours' time in service after the effective date of this AD, accomplish the following:

A. Locate and drill five (5) .250 inch diameter drain holes and install five (5) Beech P/N 50-420082-3 drain seals in the bottom of the fuselage in accordance with Beechcraft Service Instructions No. 0741-103, Rev. I, or later approved revisions.

B. Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective August 18, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A12CE](https://openairdocs.org/tcds/A12CE): Textron Aviation Inc.; names 3 of 3 models: A60, B60, 60

## 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: 261 (261 by airframe model, 0 by engine model)
- Makers: Beech 261

Models with the most aircraft:

- [Beech B-60](https://openairdocs.org/model/beech-b-60): 186 aircraft (airframe model)
- [Beech A60](https://openairdocs.org/model/beech-a60): 43 aircraft (airframe model)
- [Beech 60](https://openairdocs.org/model/beech-60): 32 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/77-14-08/models.md
Every aircraft: https://openairdocs.org/ad/77-14-08/aircraft.md

Its text cites no advisory circulars or STCs.

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