As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN CLIMBING OUT BETWEEN APPROX 8000FT AND 11500FT THERE IS A LOUD WHISTLING SOUND COMING FROM THE MAIN CABIN DOOR. IT THEN GOES COMPLETELY AWAY AFTER HITTING 11,500FT. REMOVED MAIN CABIN DOOR PRIMARY DOOR SEAL AND REPLACED WITH CUSTOMER PROVIDED MAIN CABIN PRIMARY DOOR SEAL OPS AND LEAK CHECK GOOD AT THIS TIME. ALL WORK DONE PER'CE 680 AMM 52-10-10