AD 74-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 172 | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172A | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172B | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172C | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172D | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172E | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172F (USAF T-41A) | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172G | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172H (USAF T-41A) | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172I | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172K | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172L | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172M | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172N | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172P | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172Q | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172R | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172RG | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
| aircraft | Cessna Aircraft Company | 172S | Airworthiness Directives; CESSNA Model 172 Series Airplanes |
Unsafe Condition
Cracks in the aft fuselage bulkhead assembly (P/N 0512157-7) could result in structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the aft fuselage bulkhead assembly for cracks within 100 hours' time in service after the effective date. If cracks are found, repair the assembly prior to further flight. Alternate methods of compliance must be approved by the FAA.
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
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Model 172 series airplanes with serial numbers 17260759 through 17261495, F17200905 through F-17201034, and FR17200351 through FR17200440
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Aft Fuselage Bulkhead Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_74-04-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-04-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 172 Series Airplanes Subject: Aft Fuselage Bulkhead Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/12/1974 Make: Cessna Aircraft Company Model: 172 | 172A | 172B | 172C | 172D | 172E | 172F (USAF T-41A) | 172G | 172H (USAF T-41A) | 172I | 172K ...Show more 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: 74-04-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1783 AD NUMBER: 74-04-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 172 Series Airplanes ACTION: SUMMARY: DATES: Effective February 12, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-04-01 CESSNA: Amdt. 39-1783. Applies to Model 172 (Serial Numbers 17260759 through 17261495, F17200905 through F-17201034 and FR17200351 through FR17200440) series airplanes. Compliance: Required as indicated, unless already accomplished. To detect cracks in the aft fuselage bulkhead assembly and provide means for repair of cracked assemblies, accomplish the following: A) Within the next 100 hours' time in service after the effective date of this AD, visually inspect the aft fuselage bulkhead assembly (P/N 0512157-7) for cracks in accordance with Cessna Service Letter SE73-37 dated November 16, 1973, or later FAA-approved revisions. B) If as a result of any inspection required herein, cracks are found, prior to further flight, repair the bulkhead assembly in accordance with Cessna Service Kit SK 172-44. C) Any alternate methods of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. This amendment becomes effective February 12, 1974. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_74-04-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-04-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 172 Series Airplanes Subject: Aft Fuselage Bulkhead Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/12/1974 Make: Cessna Aircraft Company Model: 172 | 172A | 172B | 172C | 172D | 172E | 172F (USAF T-41A) | 172G | 172H (USAF T-41A) | 172I | 172K ...Show more 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: 74-04-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1783 AD NUMBER: 74-04-01 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 172 Series Airplanes ACTION: SUMMARY: DATES: Effective February 12, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-04-01 CESSNA: Amdt. 39-1783. Applies to Model 172 (Serial Numbers 17260759 through 17261495, F17200905 through F-17201034 and FR17200351 through FR17200440) series airplanes. Compliance: Required as indicated, unless already accomplished. To detect cracks in the aft fuselage bulkhead assembly and provide means for repair of cracked assemblies, accomplish the following: A) Within the next 100 hours' time in service after the effective date of this AD, visually inspect the aft fuselage bulkhead assembly (P/N 0512157-7) for cracks in accordance with Cessna Service Letter SE73-37 dated November 16, 1973, or later FAA-approved revisions. B) If as a result of any inspection required herein, cracks are found, prior to further flight, repair the bulkhead assembly in accordance with Cessna Service Kit SK 172-44. C) Any alternate methods of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. This amendment becomes effective February 12, 1974. 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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