What was found
AFTER THE FLIGHT, DURING THE TURN, IT WAS NOTED THAT THE L1 DOOR WOULD NOT REMAIN LOCKED OPEN. MX WAS AT THE STATION AND FOUND THE GUIDE AND BUSHING OUT OF POSITION, REF AIPC 52-11-01-09D, ITEMS 240 AND 260. THE 2 PARTS WERE RE-INSERTED AND THE DOOR UNLOCKING MECHANISM CHECKED OK IAW AMM 52-11-00-06. THE ACFT INCURRED A 22 MINUTE DELAY. NO FURTHER ISSUES WITH THIS SYS HAVE BEEN REPORTED.