What was found
ON GEAR RETRACTION DOORS NOT LATCHED AND GEAR NOT LATCHED REMAINED ILLUMINATED UPON PERFORMING UPLATCH CHECK GEAR LIGHTS REMAINED ILLUMINATED RECYCLED GEAR SEVERAL TIMES NO HELP. PERFORMED LANDING GEAR AND GEAR DOOR INSP IAW DC-8 M/M 3-10-0, NO ABNORMALITES FOUND. FOUND HYD SYS SEL OUT OF DETEND. RESET HYD SELEC HANDLE TO NORM POS, LEFTED AFT IAW DC-8 M/M 7-11-0. PERF GEAR EXT AND RETRACTION IAW DC-8 IAW DC-8 M/M 32-30-0. LANDING GEAR AND DOOR OPS CHECK NORMAL IAW 32-31-0.