AD 84-03-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 414A | Airworthiness Directives; Cessna Model 414A, 421C, and 425 Airplanes |
| aircraft | Cessna Aircraft Company | 421C | Airworthiness Directives; Cessna Model 414A, 421C, and 425 Airplanes |
| aircraft | Cessna Aircraft Company | 425 | Airworthiness Directives; Cessna Model 414A, 421C, and 425 Airplanes |
Unsafe Condition
Cracking and possible loss of the windshield due to original factory windshield installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours time-in-service after the effective date, install a temporary placard near the cabin pressurization switch with white letters on a red background stating 'LIMIT PRESSURIZATION TO 3.0 PSI MAXIMUM'. Within 100 hours time-in-service, inspect the windshield attach holes per Cessna Service Information Letters, replace or repair unacceptable windshields, and remove the temporary placard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service after the effective date of this AD and within 100 hours time-in-service after the effective date of this AD.
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Affected Aircraft
Cessna Model 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 numbers 425-0002 through 425-0177) with original factory windshield installation.
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
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