What was found
EMERGENCY LIGHT SYS FAILED PREFLIGHT CHK. WITH SWITCH IN ARM, NO LIGHTS ILLUMINATED. EMERG LIGHT SWITCH ON, CABIN DOOR LIGHTS FAILED, AS LIGHT OVER GALLEY WORK AREA FAILED. WHILE MOVING EMERG LIGHT SWITCH, LIGHTS OCCASIONALLY FLICKER VERY BRIEFLY THEN GO OUT. REMOVED RELAY KC006 IAW MM 24-60-20 & PERFORMED A GVI OF PINS & SOCKETS, NO DEFECTS. WIRING CHK FROM KC006 X2 TO GND NOTING 0.2 Q. INSTALLED NEW RELAY IAW MM 24-60-20. ACCESSED EMERG LIGHT SWITCH & PERFORMED A GVI, NO FAULTS. WIRE CHKS OF S1, S2, S3, & 54 WITHIN LIGHT SWITCH, NO DEFECTS OR ABNORMAL RESISTANCE. POWERED ACFT & ALLOWED EMER LIGHT BATTERIES TO CHARGE FOR 1 HOUR. PERFORMED 5 OPS CHKS OF EMERG BATTERIES IAW MM 33-50-00, NO DEFECTS.