Service difficulty report · Oil System · Boeing 757351

Difficulty date
December 4, 2014
Submitted
December 9, 2014
Operation
Air carrier
Aircraft
N593NW
Make and model
Boeing 757351
Aircraft serial
32993
Aircraft time
41,923 hours, 13,863 cycles
Engine
Pwa PW2040
Part
Oil System
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
K, B, J
Precautionary procedure
A

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

What was found

WHILE OPERATING ON FLIGHT 312, PASSING THRU 14,000 FT, CREW REPORTED FLIGHT DECK AND CABIN BEGAN TO FILL WITH SMOKE. LT ENGINE OIL TEMPERATURE INCREASING AND OIL PRESSURE DROPPING, CREW DIVERTED. ENGINE WAS NOT SHUTDOWN. MAINTENANCE FOUND HIGH SATURATION OF OIL JUST AFT OF FAN. DRY MOTORING CONFIRMED OIL LEAK FROM 123 COMPARTMENT. REPLACED NR 1 ENGINE.