- Model
- 47H-1
- Data sheet
- TCDSH-1
- Registered aircraft
- 6 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 | b8869f22…a3ad774 | FAA DRS (API key needed) |
On this page
The airworthiness directive
56-15-01 BELL: Applies to Model 47H1 Helicopters, Serial Numbers 1347 Through 1356.
Compliance required as soon as possible, but not later than August 15, 1956.
In order to prevent tail boom skin cracking in the area of the aft ballast, it is necessary to complete a revised aft ballast provision installation utilizing Bell Kit No. 47-2406-1B. In addition it is also necessary to install Bell Kit No. 47-2406-1A, Antitorque Control Pulley Brackets Installation, at this same time to permit the installation of the new tail rotor control cable assembly, P/N NAS 302 R-66-5537. This revised antitorque control system installation is required to provide adequate clearance with the new aft ballast provision installation.
(Bell Mandatory Service Bulletin No. 110 dated June 1, 1956 covers this same subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 6
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1955 | 2 |
|---|---|
| 1956 | 2 |
| 1957 | 2 |