What was found
TRACKING AND BALANCING T/R WITH TRACKING ON GROUND RUNS AND COULD NOT GET T/R TO BALANCE DYNAMICALLY. HAS BEEN INSTALLED ON 3 ACFT PRIOR AND REMOVAL HAS BEEN FOR UNABLE TO BALANCE DYNAMICAL IN LESS THAN 200 HOURS.
- Difficulty date
- March 30, 2011
- Submitted
- April 2, 2011
- Operation
- Air carrier
- Aircraft
- N417MC
- Make and model
- Bolkms BK117B2
- Aircraft serial
- 7150
- Aircraft time
- 12,479 hours
- System (JASC)
- 6420 · Tail Rotor Head
- Part
- Rotor Head
- Part number
- 11731714
- Part serial
- 190
- Condition
- Unbalanced
- Location
- Tail Rotor
- Part time
- 11,277 hours
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.