Service difficulty report · Oil System · Boeing 747230B

Difficulty date
April 20, 2009
Submitted
April 21, 2009
Operation
Air carrier
Aircraft
N489EV
Make and model
Boeing 747230B
Aircraft serial
23393
Engine
Ge CF650E2
Engine time
7,017 hours
Part
Oil System
Condition
Low Pressure
Location
Nr 4 Engine
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
E

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CRUISE AT FL 310, NR 4 ENGINE OIL PRESSURE ILLUMINATED. CHECKED OIL QUANTITY GAUGE IT READ ZERO, AND OIL PRESSURE READ 10 PSI. SHUTDOWN ENGINE USING IN-FLIGHT FAILURE AN SHUT DOWN CHECKLIST. WINDMILL FOR 76 MIN, NOTIFY ATC AND DISPATCH, DUMPED FUEL AND RETURNED TO JFK WITHOUT INCIDENT.