As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2498: FA REPORTS LOUD SQUEAL COMING FROM AFT SERVICE DOOR (R2) AFTER ENGINE START WITH BLEEDS SELECTED ON. MAINTENANCE RE-ADJUSTED AFT SERVICE DOOR SEAL AND CLEANED DOOR SEAL. PRESSURIZED AIRCRAFT FOR MAINTENANCE IAW AMM 21-00-00-863-801 AND 54-41-00-820-801 SUB TASK 54-41-00-820-059. OPS CHECK GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.