Service difficulty report · Wire Harness · Boeing 757222

Difficulty date
February 16, 2004
Submitted
April 5, 2005
Operation
Air carrier
Aircraft
N556UA
Make and model
Boeing 757222
Aircraft serial
26650
Aircraft time
39,517 hours, 14,471 cycles
Engine
Pwa PW2037
Part
Wire Harness
Part number
W2070W2072W23
Condition
Damaged
Location
P34 Panel
Stage of operation
IN
How discovered
9
Nature of condition
B
Precautionary procedure
K

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

What was found

EQUIPMENT CTR LIGHT, DRAIN MAST HTR GND, SEAT BELT SIGNS, RT FWD ENTRY AND ATTENDANT LIGHTS, FUEL VALVE QTY CTL LIGHT, SIDEWALL LIGHT, RT SIDEWALL LIGHT, CONT SIDEWALL LIGHT, ENTRY GALLEY LIGHTS, RT CEILING LIGHT AND CTL CEILING CIRCUIT BREAKERS FOUND POPPED. *S/D* WIRES BELONGING TO BUNDLES: W2070, W2072, W2356, W3576 AND W3614 WERE FOUND WITH EXTENSIVE OVERHEAT DAMAGE NEAR THE P34 ELECTRICAL PANEL. THERE IS NO CONCLUSIVE INDICATION OF WHAT INITIATED THE WIRE OVERHEAT DAMAGE, POSSIBLE EXISTING DEGRADATION TO THE WIRE INSULATION, TYPICAL TO THE WIRE TYPE BMS13-51 - PLAIN KAPTON. WIRE BUNDLES WERE REPAIRED USING ENVIRONMENTAL SPLICES PER BSWM 20-10-13.