What was found
R-1 DOOR EVACUATION SLIDE FAILED TO DEPLOY PROPERLY DURING DEPLOYMENT TEST. SLIDE INFLATED EARLY CAUSING SLIDE TO INFLATE BETWEEN DOOR & DOOR OPENING NOT ALLOWING DOOR TO COMPLETELY OPEN. SLIDE DEPLOYED SIDEWAYS INSTEAD OF FLAT. SLIDE INFLATED COMPLETELY WITHIN 10 SEC. SLIDE WAS REMOVED & REPLACED. BOEING HAS SEEN PROBLEM WITH OTHER OPERATORS (SIDEWAYS OR TWISTED SLIDE DEPLOYMENT) DESCRIBED IN THEIR "FLEET TEAM DIGEST 737-FTD-25-02007". BOEING ATTRIBUTES SLIDE'S SIDEWAYS DEPLOYMENT TO ALIGNMENT(IE. POSITIONING) OF SLIDE WITHIN SLIDE COMPARTMENT ASSEMBLY (50% SLIDE FAULT AND 50% COMPARTMENT FAULT). BOEING PLANS TO INCORPORATE SEVERAL DESIGN IMPROVEMENTS TO ESCAPE SLIDE COMPARTMENT WITH RELEASE OF S/B.