74-04-01: Aft Fuselage Bulkhead Assembly
FAA order 74-04-01 is an airworthiness directive in force since February 12, 1974. The FAA's subject line: Aft Fuselage Bulkhead Assembly. It names Cessna 172 Skyhawk: about 20,670 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: airframe structure.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Cessna Aircraft Company
- Models
- 172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R, 172RG, 172S
- On this site
- Cessna 172 Skyhawk 20,670 registered
Dates and paperwork
- In force since
- February 12, 1974
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (1,032 characters)
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.
Thisamendment becomes effective February 12, 1974.
Related safety bulletins advice on the same designs, not orders
2022-12-06CE-19-01 R1 · Engine Oil and Airplane Hour Meter; Pressure Switch Failure
2021-08-26AIR-21-16 · FLIGHT COMPARTMENT EQUIPMENT, Cessna Seat Back Attachment Bolt Inspection
2019-02-12CE-19-01 · Engine Oil and Airplane Hour Meter; Pressure Switch Failure
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2018-07-19CE-18-23 · Passenger Compartment Equipment - Installation of F. Atlee Dodge Aircraft Services LLC. Folding Jump Seats
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 9, 2026. Connections as data: /graph/directive/74-04-01.json · aircraft systems.