SDR 2001UALA02230

Service difficulty report · Warning System · Boeing 757222

Difficulty date: October 30, 2001
Submitted: November 27, 2001
Operation: Air carrier
Aircraft: N590UA
Make and model: Boeing 757222
Aircraft serial: 28708
Aircraft time: 15,694 hours, 4,325 cycles
Engine: Pwa PW2037
Engine time: 15,694 hours, 4,325 cycles
System (JASC): 7930 · Engine Oil Indicating System
Part: Warning System
Condition: Activated
Location: Oil System
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

NR 2 ENGINE EICAS MSG OIL FILTER DISPLAYED. OIL FILTER CHECKED CLEAN. REPLACED FILTER AND THE DIFFERENTIAL PSI SWITCH. SUBSEQUENT WRITE UP FOR SAME MESSAGE, OIL FILTER CHECKED CLEAN. REPLACED FILTER AND THE DIFFERENTIAL PSI SWITCH. DRAINED AND FILLED THE MAIN GEAR BOX AND OIL TANK DUE TO SUSPECTED HIGH CARBON CONTENT IN THE OIL.