SDR CA030115001

Service difficulty report · Alternator · Boeing 767333

Difficulty date: December 17, 2002
Submitted: January 21, 2003
Operation: Air carrier
Make and model: Boeing 767333
Aircraft time: 958 hours
Engine: Ge CF680C2B6F
System (JASC): 7260 · Turbine Engine Accessory Drive
Part: Alternator
Condition: Broken
Location: Gearbox
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: O

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

What was found

(CAN) ORIGINAL WRITE UP STATED, LT ENGINE OIL QUANTITY SLOWLY DROPPED TO ZERO DURING CRUISE. OIL TEMP STEADY AT 3 DEGREES ABOVE RT ENGINE. OIL PRESSURE FLUCTUATED AT 2-10 PSI BELOW RT ENGINE. LT ENGINE EICAS MESSAGE SHOWING. AIRCRAFT PROCEEDED TO YVR WITH LT ENGINE AT IDLE POWER. MAINTENANCE FOUND BROKEN CONTROL ALTERNATOR. CONTROL ALTERNATOR AND STATOR REPLACED. LEAK AND FUNCTION CHECKED OK.