What was found
APU WOULDN'T START ELEC LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED ELEC LIGHT MESSAGE BITE PROCEDURE PER FIM 24-31 TASK 801. FOUND SPCU FAULT, SPCU FAULT WOULD NOT RESET. FOUND SW HOT BAT BUS C/B OPENDED. RESET C/B PER MM 20-60-01. REACCOMPLISHED ELEC LIGHT BITE CHECK. SPCU FAULT CLEARED. ACCOMPLISHED APU BITE PER FIM 49-60 TASK 801. NO CURRENT FAULTS FOUND. STARTED APU PER MM 49-11-00 APU STARTED AND OPS CHECK NORMAL.