What was found
UPON SHUTDOWN OF THE APU WE NOTICED A STRONG ODOR WHICH SMELLED LIKE ELEC WIRES BURNING AS WE WALKED TOWARDS THE LAVATORY, OPENED THE ACCESSORY DOOR TO THE APU & NOTICED A VERY STRONG ELEC SMOKE ODOR. DISCONNECT THE BATTERY, INSPECTED AFT J BOX AREA & FOUND RELAY KZ001 BURNED. R & R RELAY IAW CE-560XL MM 24-50-03. FOUND TRANSFORMER DZ007 WAS BURNED OUT ALONG WITH SEVERAL COMPANION WIRES. JUNCTION BOX WAS REMOVED, INTERNAL DAMAGE R & R INSTALLED CE-560XL MM 24-50-03, WO 295092. SYS OPERATIONS CHECKED GOOD.