AD 92-16-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 401 | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 402 | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 402A | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 402B | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 402C | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 404 | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 421 | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 421A | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 421B | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
| aircraft | Cessna Aircraft Company | Reims Aviation S.A. | 421C | Airworthiness Directives; CESSNA Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 Airplanes |
Unsafe Condition
Passenger injury caused by commuter seat failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove, modify, and reinstall Enviroform type commuter-style passenger seats in accordance with specified Cessna Service Kits. Accomplish seat tracking modification for Models 404, F406, and 441. Use special flight permits if needed to reach a location for compliance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Aircraft Company and Reims Aviation S.A. Models 401, 402, 402A, 402B, 402C, 404, F406, 421, 421A, 421B, 421C, and 441 (all serial numbers) with Enviroform commuter seats installed and no structural reinforcement per specified service kits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.