- Models
- HRS-1/CH-19, HRS-3/H-19B, S-55, S-55B, S-55C
- Registered aircraft
- 17 matched by model
- Product
- Aircraft · Rotorcraft
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 | 19 KB | 7ac49d84…f2fa01d | FAA DRS (API key needed) |
On this page
The airworthiness directive
54-01-03 SIKORSKY: Applies to All Model S-55 Helicopters.
Compliance required prior to next flight.
Finger fuel strainer installed on all tanks should be removed and inspected to determine whether it incorporates a small disc screen located inside the body of the strainer. This disc screen should be removed if found to be incorporated, since it would tend to restrict fuel flow if it became clogged with foreign material.
(Sikorsky Service Information Circular No. 1430-410, dated November 9, 1953, covers the same inspection modification.)
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 17
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1952 | 1 |
|---|---|
| 1953 | 1 |
| 1954 | 3 |
| 1955 | 3 |
| 1956 | 2 |
| 1957 | 2 |
| 1959 | 1 |
| 1996 | 1 |
| 1997 | 1 |
2 with no year recorded