What was found
EXTREMELY HIGH PITCH NOISE COMING FROM THE MAIN CABIN DOOR IN FLIGHT. NOISE STOPPED AS WE STARTED THE DESCENT. REPAIRED PASSENGER DOOR STRIKER IN 2 SPOTS ON THE AFT PORTION IAW REO601R-53-22-033.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EXTREMELY HIGH PITCH NOISE COMING FROM THE MAIN CABIN DOOR IN FLIGHT. NOISE STOPPED AS WE STARTED THE DESCENT. REPAIRED PASSENGER DOOR STRIKER IN 2 SPOTS ON THE AFT PORTION IAW REO601R-53-22-033.