As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT'S WALKAROUND NOTICED THE LITTER DOOR HANDLE NOT INSTALLED. ENSURED DOOR WAS SECURE. THE LITTER DOOR HANDLE ASSY WAS REPLACED. THE ORIGINAL HANDLE WAS RECOVERED AT THE BASE UPON RETURN A FEW FEET AWAY FROM THE PAD. IT APPEARS AS IF THE C CLIP THAT HOLDS THE HANDLE INSIDE THE LEVER HAD FAILED.