What was found
NR 4 ENGINE SHUT DOWN FOR LOSS OF OIL ON APPROACH. FOUND CRACK IN GEAR BOX. REMOVED AND REPLACED NR 4 ENGINE PER EIA W/C F7201 OP'S AND LEAK CHECKED GOOD.
- Difficulty date
- May 29, 2011
- Submitted
- June 21, 2011
- Operation
- Air carrier
- Aircraft
- N487EV
- Make and model
- Boeing 747230B
- Aircraft serial
- 23286
- Engine
- Ge CF650E2
- System (JASC)
- 7210 · Turbine Engine Reduction Gear
- Part
- Gearbox
- Condition
- Cracked
- Location
- Nr 4 Engine
- Stage of operation
- AP
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.