Service difficulty report · Relay · Boeing 777222

Difficulty date
October 11, 2010
Submitted
October 15, 2010
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
62,605 hours, 11,589 cycles
Engine
Pwa PW4077
Part
Relay
Part number
8112507
Part serial
42
Condition
Faulty
Location
Right
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

ENG FUEL VALVE R RT HIGH PRESSURE (HP) FUEL SHUTOFF VALVE POSITION DISAGREES WITH COMMANDED POSITION. STATUS MSG01- ACTIVE ENGINE SHUTDOWN MODE DEPENDENT; FUEL METERING UNIT (FMU) (R ENG) FUEL SHUTOFF VALVE (SOV) IS NOT IN COMMANDED POSITION. DB- ELECTRONIC ENGINE CONTROL (R ENG, CH B) MSG-7360212 ACTIVE SD MODE RAN NR2 ENGINE. HAD TO PULL THE ENGINE FIRE HANDLE TO SHUTDOWN THE MOTOR. NEED ERU REPLACEMENT. ENG FUEL SHUTOFF CNTRL RELAYS CKD, CKD OK. REPLACED ERU. ACCOMPLISHED TEST 6 RUN AND SHUTDOWN TWICE NORMAL.