What was found
GEAR DISAGREE WARNING MESSAGE. LOWERING GEAR LEFT MAIN DID NOT COME DOWN. RAN QRH PROCEDURE AND LEFT MAIN COME DOWN AND LOCKED, ALL THREE GREEN. (FLIGHT 3217 - FILED CLOSED) THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 24994032 WITH THE FOLLOWING CORRECTIVE ACTION: "TROUBLESHOT GEAR DISAGREE WARNING MESSAGE B1 CODE: 065386 IN REFERENCE TO FIM 32-11-00-810-805. REMOVED AND REPLACED THE LH MLG PRESSURE SWITCH MT229 IAW AMM 32-32-06. PERFORMED OPERATIONAL TEST OF THE LANDING-GEAR EXTENSION/RETRACTION SYSTEM IAW AMM 32-30-00. OPS CHECK GOOD AT THIS TIME. SEE CP 24994318 FOR SMOD APPROVAL. SEE CP 24997228 FOR LEAK CHECK. "