- Models
- 47B, 47B3
- Data sheet
- TCDSH-1
- Registered aircraft
- 1 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 | 46f605c6…e2950cb | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-41-08 BELL: (Was Mandatory Note 20 of AD-1H-2.) Applies to All Models of 47B Series, Through Serial Number 78.
Compliance required at next 100-hour inspection.
The stabilizer bar mixing levers should be reworked by cutting away the lower inboard edge of a 2-inch radius from a center position 1 1/2 inches from the vertical centerline of the center hole. The cut should not be more than 1/8 inch at its deepest point and the sharp corners, resulting from the removal of this segment, should be rounded by a 1/2-inch radius. This reworking will eliminate the interference between those levers and the stabilizer bar damper, which may exist when the stabilizer bar is depressed 5 degrees.
(Complete instructions are carried by Bell Service Bulletin 47C52, dated July 9, 1947.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.