What was found
DURING BOARDING EMERG LIGHTS CAME ON EMRG. LIGHTS ON MSG ON EICAS. EMERG. LIGHTS SELECTOR WAS ARMED CYCLED EMERG. LIGHTS SELECTOR OFF- THEN ARMED EICAS MSG. IS GONE BUT RAINBOW LIGHTS ARE STILL ON. REMOVED FROM SERVICE. CYCLED SHIPS POWER AND C/W OPERATIONAL TEST OF ATT. CALL LIGHTS INDICATORS REF; E175 AMM 33-24-00-710-801 OPS CK GOOD NO OTHER DEFECTS NOTED AT THIS TIME EMERGENCY LIGHTS ARE NO ILLUMINATED AND NO OTHER DEFECTS FOUND AT THIS TIME.