What was found
GEAR DISAGREE WARNING MESSAGE. LEFT MAIN GEAR INDICATION RED. COMPLIED WITH QRH MANUALLY EXTENDED GEAR. R & R LT MLG UPLOCK ASSY, COMPLIED WITH PROX SYSTEM TEST, PERFORMED FUNCTION TEST OF LANDING GEAR EXTENSION/RETRACTION SYS AND PERFORMED OPS TEST OF LANDING GEAR MANUAL RELEASE IAW AMM. PN: 17051-101, SNON: DH-0128-03, SN OFF: CWDD-0286.