As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUND AS AN SDR REPORTABLE EVENT. ELECTRICAL BURNING SMELL IN FLIGHTDECK AND NEAR ROW 7 IN PAX CABIN WENT AWAY AFTER ENGINE 1 SHUT DOWN. CONFIRMED BURNT SMELL COMING FROM AVIONICS COMPARTMENT FWC#1 - TSM 05-50-00-240-831-A - R&R FWC IAW AMM 31-53-34-000-001-A//END/