2021-15-51: Main rotor system
Emergency order 2021-15-51 is an airworthiness directive. The FAA's subject line: Main rotor system. It names Bell 204, Bell 205, Bell 212: about 124 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: rotorcraft systems.
What it applies to as the FAA lists it
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
Related safety bulletins advice on the same designs, not orders
2012-07-30SW-12-38 · Emergency Push Out Window Retention
2008-08-27SW-08-42 · Emergency Float with Liferaft Kits (kits)
2005-08-08SW-05-79 ·
2005-04-05SW-05-47 ·
2004-11-30SW-05-10R1 ·
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/2021-15-51.json · aircraft systems.