What was found
T/R GEARBOX CASTING CRACKED, DISCOVERED DURING ROUTINE ZONE INSPECTION. T/R GBX FITTING HAD BEEN REPLACED FOR A SIMILAR CRACK 832 HRS PRIOR.
- Difficulty date
- October 22, 2009
- Submitted
- October 23, 2009
- Operation
- Air carrier
- Aircraft
- N155SC
- Make and model
- Bolkms BK117B1
- Aircraft serial
- 7173
- Aircraft time
- 10,943 hours, 444,134 cycles
- System (JASC)
- 5302 · Rotorcraft Tail Boom
- Part
- Fitting
- Part number
- 1053040212
- Condition
- Cracked
- Location
- T/R Gearbox
- Part time
- 832 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.