- Effective
- December 9, 1972
- Models
- 3N, 3NM, 3TM, C-45G, C-45H, D18C and 10 more
- Data sheet
- TCDSA-765
- Registered aircraft
- 250 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1572
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 January 21, 2026.
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 | 22 KB | 1ab7a1a1…19bca9f | FAA DRS (API key needed) |
On this page
The airworthiness directive
72-25-06 BEECH: Amdt. 39-1572. Applies to Beech Models C-45G, TC-45G, C-45H, TC-45H, TC-45J (SNB-5), RC-45J (SNB-5P) D18C, D18S, E18S, E18S-9700, G18S, H18, JRB- 6, 3N, 3NM and 3TM Aircraft certificated in all categories with STC SA4-1531, STC SA111WE, STC SA1832WE or any other STC modification incorporating the provisions of the Volpar TriGear Installation.
Compliance required as indicated.
To prevent possible failure of the nose landing gear to extend from the retracted position on those aircraft with Volpar TriGear installed, accomplish the following:
For airplanes incorporating Volpar Tricycle Landing Gear, within the next 100 hours' time in service after the effective date of this AD unless already accomplished, modify the Volpar nose walking beam assembly, P/N 261, in accordance with Volpar Service Bulletin No. 21, as revised 7 August 1972, or later FAA-approved revision, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.
NOTE: For bulletins, parts or service information contact:
Volpar Incorporated 16300 Stagg Street Van Nuys, California 91406 Phone 213-787-4393
NOTE: Pilots are cautioned to conduct a through pre-flight inspection in this area. A decal should be located on the nose gear shock strut housing listing the recommended strut inflation pressure.
This amendment becomes effective December 9, 1972.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 250
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1942 | 2 |
|---|---|
| 1943 | 6 |
| 1944 | 1 |
| 1945 | 5 |
| 1946 | 16 |
| 1947 | 2 |
| 1948 | 2 |
| 1949 | 1 |
| 1950 | 2 |
| 1951 | 9 |
| 1952 | 25 |
| 1953 | 7 |
| 1954 | 13 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 14 |
| 1958 | 8 |
| 1959 | 17 |
| 1960 | 11 |
| 1961 | 6 |
| 1962 | 7 |
| 1963 | 2 |
| 1964 | 7 |
| 1965 | 6 |
| 1966 | 1 |
| 1969 | 2 |
| 1979 | 1 |
| 1996 | 1 |
61 with no year recorded