What was found
PIT - DURING OPERATIONAL TEST OF THE LEFT HAND, AFT DOOR EMERGENCY ESCAPE SLIDE, THE DOOR ONLY OPENED HALF-WAY, THE DOOR ASSIST BOTTLE DID NOT WORK, THE SLIDE COVER DID NOT FULLY RELEASE, AND THE BOTTOM HALF (UNDERSIDE) OF THE SLIDE DID NOT INFLATE. MAINTENANCE REPLACED THE LEFT HAND, AFT DOOR EMERGENCY ESCAPE SLIDE.