- Effective
- August 2, 1979
- Models
- Safety Belts, AA-1B, AA-1C, AA-5, AA-5A, AA-5B
- Registered aircraft
- 2,087 matched by model
- Product
- Appliance
- Amendment
- 39-3519
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 | 21 KB | 02c710cd…53c717b | FAA DRS (API key needed) |
On this page
The airworthiness directive
79-16-02 INDIANA MILLS AND MANUFACTURING, INC.: Amendment 39-3519. Applies to Model IMM 111040-1, -2, -3, -4 and -8 safety belt assemblies marked as meeting the standards of FAA TSO-C22f. These safety belts are installed in, but not limited to, Gulfstream American Corp. (formerly Grumman American Aviation Corp.) AA-1B, AA-1C, AA-5, AA-5A, AA-5B model airplanes.
These safety belts can no longer be considered to meet the standards prescribed by FAA TSO-C22f and the approved special criteria for push-button release mechanisms which requires the push-button release force to be between 2.5 and 8 pounds when using the loading conditions specified in FAA TSO-C22f (Section 4.3.2.2 of NAS 802).
Within 120 days from the effective date of the AD, these safety belts shall not be used in type certificated aircraft.
NOTE - Information regarding replacement safety belts for Gulfstream American airplanes can be obtained from:
Gulfstream Light Aircraft Customer Service P.O. Box 2206 Savannah, Georgia 31410 Telephone (912) 964-3000 Telex 54-6470
This amendment becomes effective August 2, 1979.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 2,087
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1943 | 1 |
|---|---|
| 1971 | 5 |
| 1972 | 150 |
| 1973 | 144 |
| 1974 | 143 |
| 1975 | 223 |
| 1976 | 240 |
| 1977 | 296 |
| 1978 | 336 |
| 1979 | 203 |
| 1990 | 1 |
345 with no year recorded