Service difficulty report · Idg · Boeing 777222

Difficulty date
July 25, 2010
Submitted
July 28, 2010
Operation
Air carrier
Aircraft
N212UA
Make and model
Boeing 777222
Aircraft serial
30218
Aircraft time
36,289 hours, 7,992 cycles
Engine
Pwa PW4077
Part
Idg
Part number
767146A
Part serial
10351
Condition
Defective
Location
Engine
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-2431662 LATCHD ER MODE ON MAT ADVISORY MSG ELEC G EN OFF R FAULT CODE 242 012 42. IDG(R) OUTPUT CURRENT DOES NOT AGREE WITH P200 INPUT CURRENT MSG 24-31662. AFTER DEFERRAL IS CLEARED IDG OIL SHOULD BE CHANGED PER MM. IDG WAS REPLACED ON LM5425, OPS CHECK GOOD.