What was found
PASSING 13000 FT IN DESCENT TO KRST, RECEIVED EICAS ALERT L WING SLIDE . EMER DOORS LIGHT ALSO ILLUMINATED ON OVERHEAD PANEL. COMPLIED WITH QRH. NO OTHER UNUSUAL INDICATIONS. PERFORMED BITE TEST ON PROX BOX AND FOUND CODE 373 CONVERTS TO SENSOR S10373 REF B757 FIM 32-09-802 CLEANED THE GREASE FROM PROX SENSOR REF B757 SWPM 20-20-00 PERFORMED TEST OF SLIDE COMPARMENT DOOR SENSOR REF AMM 52-71-00-5 OPS CK GOOD EICAS MESSAGE CLEARED AND EMER DOOS LIGHT WENT OUT A/C OK FOR SERVICE