What was found
L-1 DOOR SLIDE DID NOT DEPLOY PROPERLY DURING AN EMERGENCY EVACUATION ON RUNWAY AFTER LANDING AT IAH. EVACUATION WAS PERFORMED DUE TO A HYD LEAK THAT CAUSED FORMATION OF HYD MIST AND FUMES IN CABIN ON LANDING AT IAH. SLIDE WAS DESCRIBED AS BEING UNUSEABLE DUE TO FACT THAT WHEN IT DEPLOYED IT BECAME "TWISTED"/WAS IN A COCKED POSITION (ONE SIDE WAS HIGHER THAN THE OTHER). L-I DOOR SLIDE WAS R/R`D IAW MM 25-66-01. ENGINEERING PERFORMED A DEPLOYMENT TEST WITH ANOTHER SLIDE AT L-I DOOR AND SLIDE DEPLOYED AND INFLATED W/O ANY PROBLEMS. SLIDE PACK CONTAINER AT L-1 DOOR WAS ALSO EXAMINED BY ENGINEERING AND NO ANOMALIES WERE FOUND. ANOTHER SLIDE WAS INSTALLED ON L-1 DOOR TO REPLACE TEST SLIDE. INVESTIGATION IS CONT