What was found
EMERG EXIT DOOR SEAL, SQUEAL COMING FOR TOP OF EMERGENCY EXIT DOOR. PRESSURIZED THE AIRCRAFT TO 7 PSI, NO NOISES WERE NOTED FROM THE EMERGENCY DOOR. REMOVED EMERGENCY DOOR AND INSPECTED DOOR SEAL, NO DISCREPANCIES NOTED. REINSTALLED EMERGENCY DOOR AND PERFORMED 2 ADDITIONAL PRESSURIZATION CHECKS, NO NOISES NOTED FROM EMERGENCY DOOR AND NO OTHER DISCREPANCIES NOTED AT THIS TIME. WORK PERFORMED IAW CESSNA 680A AMM 52-20-05 & 21-30-00.