What was found
L1 DOOR CLOSED INCORRECTLY. WHILE OPENING DOOR ASSIST BOTTLE DISCHARGED. INTERIOR ARM/DISARM HANDLE WAS IN DISARM POSITION L1 ONE DOOR IS DIFFICULT TO CLOSE FROM OUTSIDE. MORE TROUBLE SHOOTIN IS REQUIRED. DOOR PLACED ON MEL. REMOVED AND REPLACED L1 DOOR EMERGENCY POWER RESERVOIR. PERFORMED A GVI OF THE L1 DOOR PER AMM 52-11-00-6 WITH NO FAULTS NOTED. CYCLED THE L1 DOOR AND CYCLED THE ARM/ DISARM HANDLE WITH NO FAULTS NOTED. DOOR OPPERATES AT STATED IN B757 AMM 52-11-00-2. A/C OK FOR SERVICE.