48-19-01: Damper Support Frames
FAA order 48-19-01 is an airworthiness directive. The FAA's subject line: Damper Support Frames. It names Bell 47: about 478 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Scotts-Bell 47 Inc
- Models
- 47B, 47B3, 47D
- On this site
- Bell 47 478 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (444 characters)
48-19-01 BELL: Applies to All Models 47B, 47B3, and 47D Helicopters.
Compliance required by June 15, 1948.
To provide continuous oil submersion of stabilizer bar damper replenishing valves, the dampers should be rotated 30 degrees down from their present position. This is accomplished by replacing the existing damper support frames, 47-140-132-1, with redesigned frames, 47-140- 013.
(Bell Service Bulletin 64 covers this subject.)
Related safety bulletins advice on the same designs, not orders
2001-02-09SW-01-13 ·
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/48-19-01.json · aircraft systems.