- Effective
- October 25, 1963
- Models
- G-164, G-164A, G-164B, G-164B-15T, G-164B-20T, G-164B-34T and 4 more
- Data sheet
- TCDS1A16
- Registered aircraft
- 564 matched by model
- Product
- Aircraft · Small airplane
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 |
|---|---|---|---|
| FAA DRS HTML | 20 KB | 2077e755…f436d55 | FAA DRS (API key needed) |
On this page
The airworthiness directive
63-22-01 GRUMMAN: Amdt. 632 Part 507 Federal Register October 25, 1963. Applies to Model G-164 Aircraft Serial Numbers 1 through 220.
Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent damage to fuel and oil lines from spray pump fan blades, rivet two 0.063 inch thick 2024-T3 aluminum alloy sheets approximately 6 inches wide by 18 and 28 inches long each, to the left and right lower accessory cowl panels using at least 10 and 16 AD 4 type rivets respectively. Center the plate's long dimension opposite the spray pump fan blade arc.
(Grumman Aircraft Engineering Corporation Model G-164 Service Bulletin No. 23, dated June 17, 1963, pertains to this same subject and also lists the availability of Grumman armor plates P/N's A1624-111 and -113.)
This directive effective October 25, 1963.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 564
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1939 | 1 |
|---|---|
| 1959 | 2 |
| 1960 | 6 |
| 1961 | 1 |
| 1962 | 13 |
| 1963 | 5 |
| 1964 | 6 |
| 1965 | 8 |
| 1966 | 4 |
| 1967 | 6 |
| 1968 | 6 |
| 1969 | 16 |
| 1970 | 7 |
| 1971 | 11 |
| 1972 | 23 |
| 1973 | 18 |
| 1974 | 31 |
| 1975 | 30 |
| 1976 | 54 |
| 1977 | 46 |
| 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 |
135 with no year recorded