As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CUSTOMER IS REPORTING AN ELECTRICAL BURNING SMELL IN THE BAGGAGE BAY AREA COMING FROM THE ACPC. NO FAULT ON THE AIRCRAFT, A VISUAL INSPECTION OF THE ACPC WAS CARRIED OUT AND SSPC NR 8 WAS SHOWING DISCOLORATION. IT WAS SWAPPED WITH A SSPC NR 4 (SPARE UNIT). AIRCRAFT RTS. SSPC NR 4 WILL BE REPLACED AT NEXT AVAILABILITY. (TC NR 20180718008).