What was found
CREW PREFLIGHT, L1 ENTRY DOOR WILL NOT OPEN, DEFERRED THE L1 DOOR PER MEL (M367452 ASSIGNED). REPLACED L1 DOOR UP LIMIT SWITCH S1-592 REF MD11 WDM 52-11-01 PG 1. OPS CHECK PER MD11 MM 52-12-00-0 AND 52-11-05-2. CHECKS OK, THIS CLEARS M367452. PLACARD REMOVED.