What was found
ELECTRICAL BURNING SMELL ON APPROACH RAN SMOKE/FIRE/FUMES AND SMELL SUBSIDED. PERFORMED ENGINE IDLE RUN IAW AMM 71-00-00 WHILE OPERATING PACKS IAW AMM 21-00-00 NO BURNING SMELL DETECTED. INSPECTED LT AND RT PACKS FOR OIL CONTAMINATIONIAW AMM 21-00-21 NO OIL CONTAMINATION FOUND. OK FOR SERVICE AT THIS TIME CONDITIONAL INSPECTION C/W IAW AMM 05-51-56, UPON FURTHER TROUBLESHOOTING DISCOVERED RIGHT TAXI RUNWAY TURN OFF SWITCH CONNECTOR MELTED AT P5 PANEL. REMOVED AND REPLACED PANEL P/N 233N3214-22 S/N 000028 ON THE P5 PANEL. OPS CHECK GOOD IAW AMM 33-42-00 AND 33-11-00.