What was found
FANSHAFT SHEARED, WHILE AIRCRAFT WAS IN A HOVER, CAUSING THE COOLING FAN TO DROP INTO THE SCROLL. CAUSE UNKNOWN, BUT BELIEVED TO HAVE STARTED WITH A CRACK CAUSED BY A MANUFACTURING DEFECT.
- Difficulty date
- July 10, 2003
- Submitted
- July 29, 2003
- Operation
- General aviation
- Aircraft
- N122YB
- Make and model
- Robsin R22BETA
- Aircraft serial
- 3309
- Engine
- Lyc O360J2A
- System (JASC)
- 8500 · Engine (Reciprocating)
- Part
- Shaft
- Part number
- A6422
- Condition
- Defective
- Location
- Engine Fan
- Part time
- 413 hours
- Stage of operation
- HO
- How discovered
- O
- Nature of condition
- M, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.