What was found
EMER LTS ON STATUS MESSAGE. EMERGENCY LIGHTS CAME ON INTERMITTENTLY WITH SWITCH IN ARMED POSITION. HALF OF THE EMERGENCY LIGHT - LT WINDOW EXIT SIGN, MAIN PAX DOOR EXIT SIGNS - ILLUMINATE. DEFERRED CABIN EMERGENCY LIGHTS IAW MEL 33-51-1-7 ENTERED IN MM02 MXC NOTIFIED 0782. CND SYS OPERATES NORMALLY, SUSPECT APU AUTO SHUTDOWN W/EMERGENCY LIGHTS ARMED CAUSED EMERGENCY LIGHTS TO COME ON. OPS CHECK GOOD IAW AMM 33-51. REMOVED FROM MM02 MXC NOTIFIED (46-32).