As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EXTERIOR FORWARD SERVICE DOOR HANDLE MOVES TO THE PERPENDICULAR WHEN IN FLIGHT. UPON LANDING IN HOG GROUND CREW INFORMED US THAT THE EXTERIOR FORWARD SERVICE DOOR HANDLE WAS NOT STOWED. WE MADE SURE IT WAS STOWED PRIOR TO DEPARTURE AND IT MOVED AGAIN TO THE PERPENDICULAR WHILE IN FLIGHT. REMOVED AND REPLACED HANDLE SHAFT SPRING. PER FIM 52-10-00-810-81.