Service difficulty report · Wire Harness · Airbus A300B4622R

Difficulty date
October 28, 2019
Submitted
February 24, 2020
Operation
Air carrier
Aircraft
N728FD
Make and model
Airbus A300B4622R
Aircraft serial
581
Aircraft time
52,220 hours, 27,469 cycles
Part
Wire Harness
Condition
Damaged
Stage of operation
TX
How discovered
O
Nature of condition
A
Precautionary procedure
H

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

What was found

MDIS 728 21-26 4813 26OCT19 MEM OPEN U WHILE PREFORMING "FLIGHT COMPARTMENT AND ELECTRONICS RACKS AIR DISTRIBUTION - ADJUSTMENT/TEST" AMM 21-21-00-05, CBS: EXTRACT FAN HI SPD, HI SPD, STBY PITOT SUPPLY, FAN SUPPLY LO SPD, 105 XP BUS BAR, HYD PUMP POPPED. BURNT SMELL AND SMOKE CAME FROM ELECTRONIC BAY. WATER DRIPPING IN THE ELECTRONIC BAY L/H SIDE. EXTERNAL POWER IS OFF. WIRE BUNDLE ABOVE 101VU PANEL HAS MULTIPLE WIRES EXPOSED AND BURNED. ACT 07NOV19 21:14 MEM SEE THE FOLLOWING WRI'S FOR WORK ACCOMPLISHED RELATED TO THIS WRI: 24-20/4814, 05-50/4818, 53-10/4820, 53-00/4822, 53-10/4823, 25-20/4824, 25-10/4829, 24-20/4831, 24-20/4834, 21-20/4836, 25-20/4835, 24-30/4816, 24-20/4814, 21-20/4836, AND MTSI 53-10/4821. SEE THE FOLLOWING WRI'S FOR OPERATIONAL CHECKS: 21-97/4842, 24-97/4837, 28-97/4839, 29-97/4838, 30-97/4840, 31-97/4847, 32-97/4843, 33-97/4845, 49-97/4846, 73-97/4847, AND 79-97/4844.

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