AD 2011-08-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 212 Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 212 Helicopters |
Unsafe Condition
Failure of a fitting, loss of a main rotor blade, and subsequent loss of control of the helicopter due to cracking of the fitting.
Required Actions
Replace certain serial-numbered fittings, perform a magnetic particle inspection (MPI) for a crack on additional serial-numbered fittings, and reidentify and refinish fittings if no crack is found.
Compliance Time
Within 25 hours time-in-service (TIS) or 15 days, whichever comes first, for fittings with less than 400 hours TIS; within 100 hours TIS or 30 days, whichever comes first, for fittings with 400 or more hours but less than 800 hours TIS; at the next main rotor teardown inspection or next tension-torsion strap replacement, whichever comes first, for fittings with more than 800 hours TIS.
Affected Aircraft
Bell Helicopter Textron, Inc. Model 212 helicopters with a certain main rotor hub inboard strap fitting (fittings) installed, specifically fittings with part number 212-010-103-007 and certain serial numbers.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.