Troy Grover came back and continued the critical review of all aircraft components fixed some of the following problems: Compass calibration for EFIS GRT, Standby compass calibration, Compile equipment list with part numbers and serial numbers, Rework a small area of the engine baffle by adding rivets, tighten oil cooler fitting, swap #2 and #4 ignition leads, Run engine and trouble shoot #2 cylinder that started running rough. Will continue the critical review Monday morning.