AD 71-07-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| 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.
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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.
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Compliance Time
Within 50 hours' time in service after the effective date of this AD
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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.
Federal Register Abstract
Emergency Exit Window
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-07-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-07-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes Subject: Emergency Exit Window Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/06/1971 Make: Cessna Aircraft Company Model: 401 | 401A | 401B | 402 | 402A | 402B | 411 | 411A Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-07-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1185 AD NUMBER: 71-07-04 SUBJECT HEADING: Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes ACTION: SUMMARY: DATES: Effective April 6, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-07-04 CESSNA: Amdt. 39-1185. Applies to 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) airplanes. Compliance: Required as indicated, unless already accomplished. To assure safe operation of the emergency exit window, accomplish the following: Within 50 hours' time in service after the effective date of this AD, 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 by any equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. NOTE: The installation of Cessna Service Kit SK402-23 does not require pulling the emergency release handle. If handle is inadvertently pulled, assure that existing emergency exit window retention pins are properly installed. This amendment becomes effective April 6, 1971. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_71-07-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-07-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes Subject: Emergency Exit Window Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/06/1971 Make: Cessna Aircraft Company Model: 401 | 401A | 401B | 402 | 402A | 402B | 411 | 411A Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-07-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1185 AD NUMBER: 71-07-04 SUBJECT HEADING: Airworthiness Directives; CESSNA Models 401, 401A, 401B, 402, 402A, 402B, 411 and 411A Airplanes ACTION: SUMMARY: DATES: Effective April 6, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-07-04 CESSNA: Amdt. 39-1185. Applies to 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) airplanes. Compliance: Required as indicated, unless already accomplished. To assure safe operation of the emergency exit window, accomplish the following: Within 50 hours' time in service after the effective date of this AD, 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 by any equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. NOTE: The installation of Cessna Service Kit SK402-23 does not require pulling the emergency release handle. If handle is inadvertently pulled, assure that existing emergency exit window retention pins are properly installed. This amendment becomes effective April 6, 1971. FOOTER:
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.
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