Service difficulty report · Cable · Boeing 737890

Difficulty date
October 30, 2023
Submitted
November 1, 2023
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
53,540 hours, 15,677 cycles
Part
Cable
Part number
ABC57021
Condition
Faulty
Location
Flight Deck
Stage of operation
NR
How discovered
V
Nature of condition
M
Precautionary procedure
K

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

What was found

RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. FOUND WINDOW HT PWR RIGHT SIDE C/B OUT. GVI RT SIDE WINDOW WIRING, NO DEFECTS NOTED. RESET WINDOW HT PWR C/B, WHCU BITE FAULTS HIST LOGGED MULTIPLE WINDOW POWER FAULTS. REF FIM TASK 30-41 TASK 814, VERIFIED HEATER RESISTANCE READING ARE WITHIN TOLERANCES AND WINDOW HEATER IMPEDANCE AND THE WHCU TRANSFORMER MATCH ON TB5014. REPLACED RT SIDE WINDOW CORD AS PRECAUTIONARY. WHCU BIT VERIFY TEST OK W/O FAULTS AND RT SIDE WINDOW HEAT OPS CHECKED NORMAL ON GND. SEAMC MITCH NOTIFIED.