SDR CA100805005

Service difficulty report · Oil System · Boeing 777233LR

Difficulty date: July 31, 2010
Submitted: January 4, 2011
Operation: Air carrier
Make and model: Boeing 777233LR
Aircraft time: 10,480 hours
Engine: Ge GE90110B1
System (JASC): 7261 · Turbine Engine Oil System
Part: Oil System
Condition: Contaminated
Location: Engine
Stage of operation: NR
How discovered: 9
Nature of condition: W
Precautionary procedure: O

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

What was found

REPORT INDICATED BOTH ENGINES WERE SERVICED WITH ENGINE OIL THAT APPEARED TO BE CONTAMINATED. ENGINE OIL FLUSH WAS ACCOMPLISHED ON BOTH ENGINES. BEFORE & AFTER SAMPLES WERE SENT FOR ANALYSIS. ANALYSIS RESULTS INDICATED NO CONTAMINATION. NO RESULTS YET AVAILABLE FOR THE SAMPLES. CARRIED OUT A VERIFICATION THAT WE HAD NO FURTHER STOCK OF THE SUSPECT OIL BATCH EO0L594 DEC 2009. A 2ND BATCH HAS BEEN IDENTIFIED TO BE QUARANTINED. CURRENTLY CHECKING IF WE HAVE ANY OF THIS BATCH IN STOCK.