AD 71-07-04

final rule
Data completeness: 70%

Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes

AD Number
71-07-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Cessna Aircraft Company 401 Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 401A Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 401B Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 402 Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 402A Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 402B Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 411 Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes
aircraft Cessna Aircraft Company 411A Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes

Unsafe Condition

Failure of the emergency exit window could result in loss of structural integrity of the fuselage.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Modify the emergency exit window in accordance with Cessna Service Letter No. ME70-30 dated August 21, 1970, and Cessna Service Kit SK402-23 dated June 15, 1970, or an equivalent method approved by the FAA. Ensure proper installation of emergency exit window retention pins if the emergency release handle is pulled.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 50 hours' time in service after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Cessna Models 401 (Serial Numbers 401-0041 and up), 401A (all Serial Numbers), 401B (Serial Numbers 401B0001 thru 401B0052), 402 (Serial Numbers 402-0041 and up), 402A (all Serial Numbers), 402B (Serial Numbers 402B0001 thru 402B0030), 411 and 411A (Serial Numbers 411-0235 and up)

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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