What was found
AFTER INSPECTION OF THE ENGINE AIR BOX, THE REAR FLAPPER HINGED DOOR WAS FOUND LOOSE. THE HINGE HAD WORN AND WORKED ITSELF LOOSE. THE ONLY OTHER ATTACHMENT IS A SPRING TO HOLD DOOR CLOSED. IF THE SPRING WOULD HAVE COME LOOSE, IT WOULD BE POSSIBLE FOR THE DOOR TO BE SUCKED UP INTO THE FUEL SERVO. THERE IS NO PART NUMBER IN THE SLINGSBY MANUAL FOR THIS FLAPPER DOOR.