What was found
NR 2 ENG IFSD DUE TO OIL PRESS ZERO. FOUND MGB HOUSING IDLER BEARING ATTACHMENT FLANGE BROKEN AND LAYING IN THE BOTTOM OF THE CASE. REPLACED ENGINE.
- Difficulty date
- July 6, 2009
- Submitted
- July 6, 2009
- Operation
- Air carrier
- Aircraft
- N122UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29168
- Aircraft time
- 41,327 hours, 4,972 cycles
- Engine
- Pwa PW4056
- Engine time
- 67,974 hours, 8,194 cycles
- System (JASC)
- 7261 · Turbine Engine Oil System
- Part
- Gearbox
- Part number
- 70R527
- Part serial
- TZ3056
- Condition
- Damaged
- Location
- Nr 2 Engine
- Part time
- 26,708 hours, 9,869 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.