What was found
UPON INIATING THE START OF THE RIGHT ENGINE, THE RT ENGINE FUEL VALVE LIGHT ILLUMINATED AT APPROXIMATELY PASSING 10%. DISCONTINUED START. FUEL CONTROL SWITCH NEVER LEFT CUTOFF. POS. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE RAN #2 ENGINE VERIFIED THE PROBLEM. R+R #2 ENGINE FUEL SHUT OFF SOLENOID VALVE PER AMM 73-21-14. RUN #2 ENG PER AMM 71-00-00 OPS CHECK AND LEAK CHECK OK. #2 ENG SHUT DOWN NORMAL. AMM 71-00-00. A/C RETURNED TO SERVICE.