What was found
WHEN DOING FIRE TEST APU FIRE HANDLE WILL NOT TEST. R & R LAMPS, NO GOOD. NEED NEW PANEL. ORDERED APU AND FIRE TEST PANEL. PART UPDATE. REMOVED APU CONTROL PANEL REF M/M 49-04-01-4. C/B'S PULLED. WHILE TROUBLESHOOTING APU CONTROL PANEL, LIGHT ASSY SHORTED AND DISCHARGED NR 1 APU/2ENG FIRE BOTTLE. LOW PRESSURE SWITCH CONNECTOR FOR APU/ NR 2 ENGINE FIRE BOTTLE HAS BEEN DISCONNECTED FOR TROUBLESHOOTING. R & R THE APU CONTROL PANEL IAW THE AMM 49-04-01-4, OPS CHECKED NORMAL.