As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR HANDLE: PUSH BUTTON SPRING MECHANISM IS NOT RETURNING THE PUSH BUTTON FLUSH WITH MAIN CABIN DOOR. IT IS JUST HANGING OPEN. REMOVED MAIN DOOR EXTERNAL HANDLE IAW P300 AMM 52-11-24 AND INSTALLED A SERVICABLE HANDLE IAW P300 AMM 52-11-24 PART WAS REMOVED SERVICEABLE FROM A/C S/N 50500328 AC TAIL N390QS FOR CONTINUED SERVICE ON A/C S/N 50500542 N439QS OPS CHECK GOOD