What was found
REF. 342366/4 AND 342667/1- LOUD SQUEAL AT 4,000 FT 250 KNOTS. ABNORMAL CLIMB RATE AT CABIN ALT. AT 10,000 FT, CABIN ALT REMAINED AT 5,000 FT. CABIN ALT INCREASED WITH DECREASED POWER. ON FINAL APPROACH ABNORMALLY HIGH RATE OF DECENT OF CABIN ALT. LANDING WEIGHT APPROX 46,950LBS. SMOOTH LANDING. BTMS READ NORMAL. CREW INDICATED THAT THEY DID NOT BELIEVE IT WAS ONLY THE PAX DOOR CAUSING THE NOISE AND PRESSUIZATION ISSUES. CAPTAIN STATED AT FIRST SHE THOUGHT THE SQUEAL WAS COMING FROM THE RADIO. CREW LEFT IT IN AUTOMATIC THE ENTIRE FLIGHT BECAUSE THE A/C WAS TRYING TO KEEP SOME PRESSUIZATION. WHEN BLEEDS WERE TRANSFERRED BACK TO THE APU FOR DECENT IT GOT MARGINALLY BETTER. NO PAX COMPLAINTS AND CA WAS THE FLYING PILOT. ***AIRCRAFT REMOVED FROM SERVICE*** FOUND PAX DOOR SEAL HAD NO VENT HOLES FOR PRESSURIZATION. C/W AWAC SUP 21-023. OPS CHECK GOOD