Service difficulty report · Wire · Boeing 757222

Difficulty date
March 14, 2005
Submitted
March 22, 2005
Operation
Air carrier
Aircraft
N506UA
Make and model
Boeing 757222
Aircraft serial
24627
Aircraft time
49,170 hours, 18,507 cycles
Engine
Pwa PW2037
Part
Wire
Condition
Chafed
Location
Transformer
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

FOUND WIRES FROM K114 RELAY CHAFING ON CURRENT SENSING TRANSFORMER BRACKET. FOUND HARNESS ARCING AND SMOLDERING. P-34 ELECTRICAL POWER PANEL, WIRE W1134-0024-8 FROM RELAY K114 TERMINAL C1, WAS FOUND CHAFFED AND ARCING ON THE SUPPORT BRACKET OF CURRENT TRANSFORMER T116. REPLACED WIRE W1134-0024-8 FROM RELAY K114 TERMINAL C1 TO C/B C305 AND WIRE W1134-0009-8 FROM RELAY K114 TERMINAL C1 TO C/B C306 (WIRES ARE CRIMPED TOGETHER ON THE SAME TERMINAL AT K114 -C1).