2011-21-12: Rotating swashplate assembly
FAA order 2011-21-12 is an airworthiness directive in force since December 1, 2011. The FAA's subject line: Rotating swashplate assembly. It names Erickson S-64: about 5 aircraft on the U.S. register today, 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
- Kind of product
- Aircraft
- Makes
- Erickson Air-Crane
- Models
- S-64F
- On this site
- Erickson S-64 5 registered
Dates and paperwork
- In force since
- December 1, 2011
- Published
- October 27, 2011 (signed September 29, 2011)
- Docket
- FAA-2010-0909
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The FAA's summary their words, unchanged
We are adopting a new airworthiness directive (AD) for the Erickson Air-Crane (Erickson Air-Crane) Model S-64F helicopters. The amendment requires, at specified intervals, certain inspections of the rotating swashplate assembly (swashplate) for a crack. If a crack is found, this AD also requires, before further flight, replacing the swashplate with an airworthy swashplate. This AD is prompted by a report from the manufacturer of a swashplate cracking during fatigue testing. We are issuing this AD to prevent loss of a swashplate due to a fatigue crack, loss of control of the main rotor system, and subsequent loss of control of the helicopter.
The order itself the regulatory text, as published
Show the full text (3,479 characters)
Related safety bulletins advice on the same designs, not orders
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 October 5, 2026. Connections as data: /graph/directive/2011-21-12.json · aircraft systems.
