Service difficulty report · Gcu · Boeing 777222

Difficulty date
September 21, 2010
Submitted
September 22, 2010
Operation
Air carrier
Aircraft
N214UA
Make and model
Boeing 777222
Aircraft serial
30220
Aircraft time
36,315 hours, 7,921 cycles
Engine
Pwa PW4084
Part
Gcu
Condition
Faulted
Location
Right
Stage of operation
NR
How discovered
9
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 RT IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTROL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCURRED. STATUS MSG01- NOT ACTIVE CRUISE MODE DEPENDENT; GENERATOR CONTROL UNIT (R) HAS AN INTERNAL FAULT. DB- GENERATOR CONTROL UNIT (R) MSG-2430032 INACTIVE ER MODE. FOUND IDG OVERFLOW DRAIN QUICK DISCONNECT FITTING LEAKING 30 DROPS PER MINUTE AT IDLE POWER. REPLACED FITTING AND SVC'D IDG. RAN ENG AND NO OTHER LEAKS NOTED.