- Effective
- February 12, 1974
- Models
- 172, 172A, 172B, 172C, 172D, 172E and 13 more
- Registered aircraft
- 20,675 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1783
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
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| FAA DRS HTML | 20 KB | 01f8ad7b…021e088 | FAA DRS (API key needed) |
On this page
The airworthiness directive
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.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 20,675
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1941 | 1 |
|---|---|
| 1951 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1955 | 60 |
| 1956 | 566 |
| 1957 | 338 |
| 1958 | 314 |
| 1959 | 337 |
| 1960 | 360 |
| 1961 | 319 |
| 1962 | 304 |
| 1963 | 434 |
| 1964 | 559 |
| 1965 | 628 |
| 1966 | 662 |
| 1967 | 314 |
| 1968 | 606 |
| 1969 | 473 |
| 1970 | 312 |
| 1971 | 343 |
| 1972 | 476 |
| 1973 | 693 |
| 1974 | 803 |
| 1975 | 926 |
| 1976 | 909 |
| 1977 | 718 |
| 1978 | 821 |
| 1979 | 711 |
| 1980 | 463 |
| 1981 | 427 |
| 1982 | 160 |
| 1983 | 52 |
| 1984 | 94 |
| 1985 | 124 |
| 1986 | 61 |
| 1988 | 1 |
| 1997 | 147 |
| 1998 | 220 |
| 1999 | 258 |
| 2000 | 260 |
| 2001 | 206 |
| 2002 | 154 |
| 2003 | 162 |
| 2004 | 109 |
| 2005 | 192 |
| 2006 | 162 |
| 2007 | 100 |
| 2008 | 125 |
| 2009 | 56 |
| 2010 | 24 |
| 2011 | 41 |
| 2012 | 58 |
| 2013 | 23 |
| 2014 | 84 |
| 2015 | 73 |
| 2016 | 46 |
| 2017 | 64 |
| 2018 | 47 |
| 2019 | 85 |
| 2020 | 116 |
| 2021 | 106 |
| 2022 | 111 |
| 2023 | 154 |
| 2024 | 150 |
| 2025 | 147 |
| 2026 | 124 |
2,699 with no year recorded