What was found
(CAN) FOUND DURING INSPECTION OF MGB, THREE PINIONS HAD HEAVY SPALLING ON GEAR TEETH, MGB TTSN ONLY 737:52. ONE PINION HAD JUST STARTED TO SPALL . ALSO, THE MGB CARRIER ASSY SET. FAILED CMM INSPECTION.
- Difficulty date
- March 14, 2012
- Submitted
- September 14, 2015
- Operation
- General aviation
- Make and model
- Skrsky S92A
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Pinion
- Part number
- 9235115171041
- Condition
- Spalled
- Location
- M/R Gearbox
- Part time
- 738 hours
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.