What was found
EMERGENCY LIGHTS ARE ON & WILL NOT EXTINGUISH. AS BATTERY PACKS GO DEAD, SOME LIGHT SECTIONS ARE NOW OUT. GROUNDED - YES. SECURED EMERGENCY LIGHT SYSTEM , PLACED EMERGENCY LIGHTS SWITCH TO OFF ALLOW 90 MINUTES TO CHANGE FOR DEEP AS REQUIRED. PERFORMED EMERGENCY LIGHT OPS CHECK IAW AMM 33-51-00-710-801, TEST FAILED. FOUND EMERGENCY LIGHT SWITCH DEPRESSED AT AFT ATTEND PANEL. REQUIRES 90 MIN CHARGE CYCLE, DEEP CYCLE COMPLETED IAW AMM 33-51-06-600-802, OPS TEST PASSED IAW AMM 33-51-00-710-801.