What was found
DURING PRESTART CHECKLIST. WHEN THE (AUX ESS POWER) CHECK WAS DONE, THE PILOT FLOAT BOTTLE DISCHARGED, AFTER APPROXIMATELY 2-3 SECONDS. WHILE SWITCH WAS ENGAGED FLOAT (ARM) SWITCH WAS OFF FLOAT (TEST) SWITCH WAS IN (NORMAL). REPAIRED CHAFFED AND BROKEN WIRE JUST FORWARD OF CONNECTOR P216 IN RIGHT FORWARD INSTRUMENT CONSOLE. RELAY K-19 (PN MS 27400-1) IN NR 2 RELAY PANEL WAS REPLACED.