- Effective
- April 6, 1982
- Superseded by
- AD2007-17-02
- Models
- G-164A, G-164B, G-164B-15T, G-164B-20T, G-164B-34T, G-164B (with 73 inch wing gap) and 3 more
- Data sheet
- TCDS1A16
- Registered aircraft
- 509 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-4355
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 August 7, 2025.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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| FAA DRS HTML | 20 KB | 07f8d527…e04da2f | FAA DRS (API key needed) |
On this page
The airworthiness directive
82-07-04 SCHWEIZER: Amendment 39-4355. Applies to Model G-164A (S/Ns 1726A through 1730A); Model G-164B (S/N 335B through 659B); Model G-164C (S/N 1C through 44C); and Model G-164D (S/N 1D through 22D) airplanes certificated in any category.
COMPLIANCE: Required as indicated, unless already accomplished.
To assure a positive stop of the fuel shut-off valve at the "ON" position, within the next 100 hours time-in-service after the effective date of this AD, accomplish the following:
(a) Modify the fuel shut-off valve control by installation of a new stop-plate, P/N A1552-71, in accordance with instructions in Schweizer Ag-Cat Service Bulletin No. 78 dated January 26, 1982.
(b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.
(c) Any equivalent method of compliance with this AD, when used, must be approved by the Chief, New York Aircraft Certification Office, FAA, Eastern Region, Federal Building, JFK International Airport, Jamaica, New York 11430; telephone (212) 995-2842.
This amendment becomes effective on April 6, 1982.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 509
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1961 | 1 |
|---|---|
| 1963 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 6 |
| 1968 | 6 |
| 1969 | 16 |
| 1970 | 7 |
| 1971 | 11 |
| 1972 | 23 |
| 1973 | 18 |
| 1974 | 31 |
| 1975 | 30 |
| 1976 | 53 |
| 1977 | 45 |
| 1978 | 48 |
| 1979 | 24 |
| 1980 | 5 |
| 1982 | 10 |
| 1983 | 7 |
| 1984 | 10 |
| 1985 | 2 |
| 1986 | 5 |
| 1987 | 3 |
| 1988 | 6 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 4 |
| 1995 | 1 |
| 1996 | 2 |
| 1998 | 1 |
| 2005 | 1 |
124 with no year recorded