SDR UALA2011080103985

Service difficulty report · Idg · Boeing 777222

Difficulty date: August 1, 2011
Submitted: August 2, 2011
Operation: Air carrier
Aircraft: N775UA
Make and model: Boeing 777222
Aircraft serial: 26947
Aircraft time: 65,080 hours, 11,726 cycles
Engine: Pwa PW4077
System (JASC): 2421 · AC Generator-Alternator
Part: Idg
Condition: Malfunctioned
Location: Right
Stage of operation: NR
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

ELEC GEN SYS R IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTROL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCURRED. STATUS MSG-2431632 INACTV DC MODE MSG-2423680 LATCHD DC MODE. RESET IDG, SVCD & RAN OKAY.