What was found
TOL - CAK FLT 7002, AIRCRAFT FAILED TO PRESSURIZE ON LIFT OFF. A SEVERE BUFFETING OCCURRED ON CLIMB-OUT. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE FORWARD CARGO DOOR OPEN. NO DAMAGE WAS NOTED TO THE AIRCRAFT AND THE FORWARD CARGO DOOR WARNING SYSTEM WAS PLACED ON MEL. DURING THE OVERNIGHT MAINTENANCE VISIT, THE DOOR WARNING SYSTEM OPERATED NORMALLY. (M)