What was found
FLT 527 EWR-MCO, AIRCRAFT DIVERTED TO JFK DUE TO MODERATE VIBRATION DURING CLIMB APPROX 25,000 FT. A DULL BANG ON AIRFRAME WAS HEARD AND A VIBRATION BEGAN THROUGHOUT THE ENTIRE AIRFRAME. SOUND AND VIBRATIONS SEEMED MOST EVIDENT UNDER COCKPIT AND MID CABIN AS REPORTED BY F/A'S. AIRCRAFT WAS SLEWED TO .74 MACH AND SOUND/VIBE CONTINUED. UPON DESCENT INTENSITY INCREASE PASSING BELOW 29,000 FT AND CONTINUED UNTIL LANDING. TECHNICIAN FOUND REFUEL PANEL DOOR MISSING. ITEM PLACED ON CDL C28-02-01 MDDR 127263. PANEL DOOR P/N D5331037920000. THE FUELLING PANEL DOOR WAS REPLACED ON 11/16/11.