What was found
INSPECTION TYPE: NA DIVERSION-EMERGENCY DECLARED, NO EQUIP USED. AC WAS TAKEN OUT OF SERVICE. IN CLIMBOUT CABIN PRESS ADV INDICATED. FWD OTFLW FULLY OPEN/AFT FULLY CLOSED. CAB ALT AT FL330 WAS 8200 & SHOULD HAVE BEEN BELOW 6400'. ATTEMPTED CLSG FWD OTFLW VALVE IN MANUAL, BUT REMAINED FULLY OPEN. AUTO SYS 1 FAILED, THEN SYS 2 FAILED. FOUND INSULATION SUCKED AROUND FWD OUTFLOW SCREEN & SCREEN BENT IN PREVENTING VALVE FROM PROPER OPERATION. SECURED INSULATION & R&R'D OUTFLOW SCREEN. ACCOMPLISHED ADJ/TEST WRT MM 21-31-00 . OPERATIONS GOOD.