What was found
LOUD HIGH PITCH SQUEAL AT DOOR. DISCOVERED DOOR 2L FWD LT SCUFF PLATE LEAKING DURING PRESSURIZATION. FWD LT SCUFF PLATE AT DOOR 2L IS CRACKED AT THE FWD MOUNT SCREW. REMOVED FWD THRESHOLD PLATE. FOUND FWD OB NUT PLATE MISSING AND A BOLT AND NUT INSTALLED MARKED. REMOVED AFT SCUFF PLATE. INSTALLED FWD SCUFF PLATE. INSTALLED AFT SCUFF PLATE. BOTH FLOOR GIRT BAR FLOOR FITTINGS NEED TO BE ADJUSTED. ADJUSTED BOTH GIRT BARS. GIRT BAR FLOOR FITTINGS CK OK. ARM AND DISARM OPERATION CK'S OKAY. PRESSURIZED AC TO 4PSE DIFFERENTIAL, NO LEAKS OR SQUEALS NOTED.