# AD 84-03-04: Windshield Installation Inspection

- Type: Airworthiness directive
- Status: Current
- Products: Cessna 414A, 421C and 425
- Effective: February 16, 1984
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-4804
- Registered aircraft: 1,020 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9D574525A5A9BBFF862569B9004D148A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/84-03-04

## The airworthiness directive

84-03-04 CESSNA: Amendment 39-4804. Applies to 414A (Serial Numbers 414A0001 through 414A0833; 414A0835 through 414A0851; 414A0853 through 414A0856; and 414A0858), Model 421C (Serial Numbers 421C0273 through 421C1257), and Model 425 (Serial Number 425-0002 through 425-0177), airplanes with the original factory windshield installation certificated in any category.

Compliance: Required as indicated, unless already accomplished.

To prevent cracking and possible loss of the windshield, accomplish the following:

a) Within 25 hours time-in-service after the effective date of this AD fabricate and install, adjacent to the cabin pressurization switch, a temporary placard having white letters of 3/16" minimum height on red background which reads: "LIMIT PRESSURIZATION TO 3.0 PSI MAXIMUM"; and operate the airplane in accordance with this placard.

b) Within 100 hours time-in-service after the effective date of this AD.

1) Visually inspect the attach holes inthe pilots and co-pilots windshield in accordance with applicable Cessna Service Information Letters ME83-33 dated September 30, 1983, and ME83-33 Revision 1 dated December 2, 1983, or PJ83-18 dated September 30, 1983, and PJ83-18 Revision 1 dated November 23, 1983.

2) Replace or repair unacceptable windshields in accordance with the criteria and instruction in the applicable Cessna Service Information Letters and Revisions.

3) Remove the temporary placard installed per paragraph a).

c) Airplanes may be flown depressurized in accordance with FAR 21.197 to a location where this AD may be accomplished.

d) The placard required by paragraph a) of this AD may be installed by the holder of at least an FAA private pilot certificate on any airplane he or she owns or operates. This person must make the prescribed entry in the aircraft maintenance records indicating compliance with paragraph a) of this AD.

e) An equivalent means of compliance with this AD may be usedif approved by the Manager, Aircraft Certification Office, Federal Aviation Administration, Room 238, Terminal Building 2299, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 269-7000.

This amendment becomes effective on February 16, 1984.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A7CE](https://openairdocs.org/tcds/A7CE): Textron Aviation Inc.; names 3 of 16 models: 421C, 425, 414A

## 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: 1,020 (1,020 by airframe model, 0 by engine model)
- Makers: Cessna 1,020

Models with the most aircraft:

- [Cessna 421C](https://openairdocs.org/model/cessna-421c): 496 aircraft (airframe model)
- [Cessna 414A](https://openairdocs.org/model/cessna-414a): 363 aircraft (airframe model)
- [Cessna 425](https://openairdocs.org/model/cessna-425): 161 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/84-03-04/models.md
Every aircraft: https://openairdocs.org/ad/84-03-04/aircraft.md

Its text cites no advisory circulars or STCs.

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