What was found
MAIN ROTOR SHAFT ASSY REMOVED FOR OTHER MX/INSP AND FRETTING WAS IDENTIFIED ON A JOURNAL FOR A SEAL RING.
- Difficulty date
- August 5, 2010
- Submitted
- August 5, 2010
- Operation
- Air carrier
- Aircraft
- N217LN
- Make and model
- Bolkms BK117B2
- Aircraft serial
- 7042
- Aircraft time
- 9,634 hours, 33,627 cycles
- Engine
- Lyc LTS101*
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Shaft
- Part number
- 4639205011
- Part serial
- 2521
- Condition
- Corroded
- Location
- Main Rotor
- Part time
- 5,130 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.