Service difficulty report · Connector · Boeing 777222

Difficulty date
December 14, 2011
Submitted
January 17, 2012
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
67,147 hours, 12,242 cycles
Engine
Pwa PW4077
Part
Connector
Part number
280W00022
Condition
Burned
Location
Hyd Pump
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

C2 PRIMARY ACMP PUMP CHK DUE TO CONTINUED PROBLEMS WITH THE CENTRE HYDRAULIC SYSTEM NUMBER 2 ACMP, PLEASE ACCOMPLISH A THOROUGH VISUAL INSPECTION OF THE PUMP WIRING FROM CONNECTOR DM29311A. CHECK CONDITION OF THE CONNECTOR AND ALL VISIBLE WIRE FOR CONDITION. ENSURE NO VISUAL SIGNS OF WIRING DISTRESS OR OVERHEATING. REFERENCE WIRING DIAGRAM 29-11-32. FOUND SOCKET C OF CONNECTOR DM29311A BADLY BURNT. WILL NEED CONNECTOR 566-0264. 3-4 HOURS TO REPLACE. MEGGERED WIRES FROM DM293 08A TO DM29311A. PHASE TO PHASE AND PHASE TO GRD. NO FAULTS FOUND.