What was found
MAIN GEARBOX OIL COOLER FAN DRIVE SEAL LEAKING
- Difficulty date
- October 15, 2021
- Submitted
- October 15, 2021
- Operation
- Air carrier
- Aircraft
- N139FW
- Make and model
- Agusta AB139
- Aircraft serial
- 31022
- Aircraft time
- 8,073 hours, 16,046 cycles
- System (JASC)
- 6322 · Rotorcraft Cooling Fan System
- Part
- Seal
- Part number
- 3G6320L00151
- Part serial
- NA
- Condition
- Leaking
- Part time
- 300 hours, 381 cycles
- Component
- Main Gearbox · Agusta
- Component part number
- 3G6320A00134
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.