What was found
DURING DISASSEMBLY FOR MINI OVERHAUL LARGE AMOUNTS OF FERROUS MATERIAL WAS NOTICED IN OIL SUMP. FURTHER TEARDOWN REVEALED 2ND STAGE PLANETARY GEARS WERE HEAVILY SPALLED.
- Difficulty date
- March 23, 2017
- Submitted
- March 30, 2017
- Operation
- General aviation
- Make and model
- Skrsky S64E
- Aircraft serial
- 64003
- Aircraft time
- 44,567 hours, 15,217 cycles
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Gear
- Part number
- 153520057006
- Part serial
- MULTIPLE
- Condition
- Spalled
- Location
- Main Gearbox
- Part time
- 1,300 hours
- Component
- Main Gearbox · Skrsky · 065
- Component part number
- 643520400065
- Stage of operation
- UK
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.