As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD SQUEAL COMING FROM THE L2 DOOR, FLT ATTENDANT CLAIMED NOISE WAS UNBEARABLE. INSTALLED HIGH SPEED TAPE AT THE L2 DOOR SCUFF PLATE IAW AMM 53-00. MAINTENANCE CHECK FLIGHT REQUIRED. OPERATIONAL TEST FLIGHT SATISFACTORY. NO NOISE DETECTED FROM 2L DOOR SEAL.