What was found
DURING ENGINE CALENDAR LIFE / OVERHAUL AT ROLLS ROYCE CANADA THE #10 HIGH PRESSURE COMPRESSOR DISK WAS FOUND TO HAVE 3 CRACKS IN THE DOVE TAILS AT THE 2, 4, AND 7 O'CLOCK POSITIONS.
- Difficulty date
- May 15, 2020
- Submitted
- May 15, 2020
- Operation
- Air carrier
- Aircraft
- N154C
- Make and model
- Gulstm GIV
- Aircraft serial
- 1493
- Aircraft time
- 7,051 hours, 4,359 cycles
- Engine
- Rroyce TAY6118
- Engine time
- 6,960 hours, 4,307 cycles
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Disk
- Part number
- JR18750
- Part serial
- UNKNOWN
- Condition
- Cracked
- Location
- Rt Engine
- Part time
- 6,960 hours, 4,307 cycles
- Component
- Engine · Rroyce · TAY6118
- Stage of operation
- IN
- How discovered
- W
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.