What was found
(CAN) WHILE ON A BIRD DOGGING MISSION OVER A FIRE. THE AIRCRAFT WAS IN A TURN OVER THE TARGET, A THUMP WAS HEARD, AN INITIAL SEVERE VIBRATION WAS FELT, ON CLIMBING TO ALTITUDE THE VIBRATION BECAME INTERMITTENT. THE AIRCRAFT RETURNED TO BASE, UPON ARRIVAL AT THE TANKER BASE IT WAS DISCOVERED THAT THE FORWARD CARGO POD DOOR HAD OPENED IN FLIGHT. THE AIRCRAFT WAS INSPECTED FOR DAMAGE, AND THE DOOR LATCHES WERE ADJUSTED TO ENSURE A POSITIVE LOCK. THE AIRCRAFT WAS RETURNED TO SERVICE. THE OTHER C208B AIRCRAFT WERE INSPECTED AND FOUND TO BE SERVICEABLE.