Service difficulty report · Wire · Boeing 7673S1

Difficulty date
February 8, 2020
Submitted
February 11, 2020
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
90,322 hours, 19,240 cycles
Part
Wire
Part number
BMS1348T11C01G02
Condition
Shorted
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK AT STATION ADW, FOUND C/B C38B (VACUUM BOWER LAV SYSTEM 2) CB POPPED. UPON RESET CIRCUIT SHORTED, FOUND WIRES W0580-154-10, 153-10, 13-24, 9-24, 99-14, 31-20, 95-12, 94-12, 93-12, DAMAGED DUE TO SHORTING AGAINST CLAMP.(<P>PERFORMED OPS CHECKS ON AFFECTED SYSTEMS, R/H PACK IAW 21-51-00, E/E COOLING IAW 21-58-00, LAV WASTE SYSTEM #2 IAW 38-32-00. ALL SYSTEMS OPERATE NORMAL AT THIS TIME AFTER REPAIRS:</P><P>ITEM M3: REPAIRED WIRES IAW SWPM 20-10-13 WITH NEW WIRE & SPLICES IAW SWPM 20-30-12 & 20-61-00, CLEANED WIRES & AREA IAW SWPM 20-10-04, INSTALLED NEW CLAMP & SECURED WIRING IAW SWPM 20-10-11 (OFF PARTS: P/N BMS13-48T10C01G020, BMS13-48T10C01G012, BMS13-48T10C01G014, BMS13-48T10C01G010)</P>)

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