As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD SQUEAL COMING FROM EMERGENCY EXITS AIRCRAFT LEFT. REMOVED BOTH EXITS. CHECKED SEALS FOR DAMAGE, NONE FOUND. CLEANED SEALS PRESSURIZED AIRCRAFT TO 3.0 PSI. CHECKED FOR LEAKS NONE NOTED AT THIS TIME. AC OK FOR SERVICE IAW AMM 25-62-00, 52-21-11 AND 05-53-00