What was found
COCKPIT ELECTRONIC DOOR LOCK FAILS TO UNLOCK DOOR. DOOR WOULD ONLY OPEN USING EMERGENCY RELEASE. ( FLIGHT DECK SECURITY DOOR AUTOMATIC LOCKING SYSTEM ). REMOVED FROM SERVICE. PUSHED IN C/B AND C/W ELECTROMECHANICAL LATCH OPS CHECK REF AMM SUBTASK 52-51-03-710-004-A. OPS CHECK GOOD. DOOR ELECTRONICALLY LOCKS AND UNLOCKS AS NORMAL. CLEAR DEFECT, PLACARDS REMOVED, C/B REMAINS PUSHED IN, MTX CTRL NOTIFIED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.