Service difficulty report · Connector · Boeing 777222

Difficulty date
November 25, 2019
Submitted
November 28, 2019
Operation
Air carrier
Aircraft
N220UA
Make and model
Boeing 777222
Aircraft serial
30223
Aircraft time
79,560 hours, 9,375 cycles
Engine
Pwa PW4090
Part
Connector
Condition
Dirty
Location
Rt Engine
Stage of operation
TX
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

ENG FUEL VALVE R GROUND REPORTS SMOKE FROM ENG DURING SHUTDWN FIM 73-22-00-810-802-N00 FOLLOWED. GVI C/O OF ENG INLET/EXHAUST AREA NO PARTICLES FOUND. CONNECTOR DM76001C AT FMU WIRING CHECKS FOUND FLUCTUATING VOLTAGE 22-26VDC BETWEEN PINS 1 AND 14. SAME ISSUE FOUND AT CONNECTOR D71074J PINS 1 AND 2. PIN 3 AT CONNECTOR D71024P FOUND DIRTY AND MISALIGNED. GVI OF CONNECTOR POWER RUNS WITH SHUT DOWN AND RESTARTS ALL SUCCESSFUL REF AMM REF AMM 71-00-00-790-803-N00. SUCCESSFUL IDLE RUNS AND X2 HIGH MEASURED AT FMU PLUG 27.32VDC. SUCCESSFUL WET MOTOR ACCOMPLISED CONNECTOR CLEANED AND CONNECTION REMADE. STABLE VOLTAGE NOW C/O. NO DAMAGE TO PIN, SOCKET OR SURROUNDING INSULATION. 71-00-00-730-003-N00. ALL FUEL FLOW AND VALVE INDS NORMAL. ACFT SERVICEABLE