# AD 46-44-03: Windshield Retaining Channel

- Type: Airworthiness directive
- Status: Current
- Products: Cessna 120 and 140
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 2,265 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7D7DAEAD5F06707286256A34005FE58E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/46-44-03

## The airworthiness directive

46-44-03 CESSNA: (Was Mandatory Note 3 of AD-768-4.) Applies Only to 120 and 140 Aircraft Serial Numbers 8001 to 9619, Inclusive.

Compliance required prior to January 1, 1947.

Rework attachment of windshield upper edge by the installation of a retaining channel deeper than the original and extending the entire width of the fuselage. The channel consists of two pieces; one an 0.040-inch 24ST alclad strip, 1 7/8 inches x 42 inches, outside of the windshield and with the rear edge inserted between the fuselage top skin and the front flange of the spar "U" channel; the other an 0.032-inch 24ST alclad strip, 1 13/16 inches x 44 inches, inside of the windshield and overlapping the above-mentioned spar flange. These strips are secured to the top skin and spar flange by a single row of 44 AN 456AD4 rivets. A piece of felt, 2 3/4 inches x 44 inches x 1/16-inch thick, SAE F-55 or equivalent, should be folded over the edge of the windshield and cemented thereto to provide a seal and a tight fit in the channel. This modification is necessary to insure that the windshield will not pull out at the top and alter the airflow, thereby seriously affecting the operational characteristics of the airplane.

(Cessna Service Letter No. 14-120 and 140 covers this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-768](https://openairdocs.org/tcds/A-768): Textron Aviation Inc.; names 2 of 2 models: 140, 120

## 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: 2,265 (2,265 by airframe model, 0 by engine model)
- Makers: Cessna 2,265

Models with the most aircraft:

- [Cessna 140](https://openairdocs.org/model/cessna-140): 1,605 aircraft (airframe model)
- [Cessna 120](https://openairdocs.org/model/cessna-120): 660 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/46-44-03/models.md
Every aircraft: https://openairdocs.org/ad/46-44-03/aircraft.md

Its text cites no advisory circulars or STCs.

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