What was found
F/A REPORTS STRONG ELECTRICAL BURNING ODOR IN VICINITY OF ROW 7 AND ROW 8, NO PASSENGERS ON BOARD AT TIME OF DISCOVERY. DID NOT NOTICE ANY VISIBLE OR AUDIBLE ARCING/SPARKING. INSPECTED AND VERIFIED BALLAST B113 CAUSED FLUORESCENT CEILING LIGHTS AT ROW 5AC TO OVERHEAT AND DAMAGE CEILING PANEL. INSPECTED CEILING LIGHTS. R&R TWO BALLAST AT 5AC TWO BULBS AT 5AC AND BULBS AT 3FD. OP CK GOOD IAW AMM 33-21-01 AND 33-21-710-001