What was found
NR 4 GEN HAD TO BE RESET AFTER ENG START BEFORE IT CAME ON LINE. WITHIN 2 MIN OF PARALLELING GENS, AND PULLING OUT OF THE BLOCKS, NR 4 GEN UNPARALLELED LIGHT ILLUM. ABNORMAL PROC WAS COMPLETED, RESTORING NR 4 GEN TO THE PARALLELED STATUS. WITHIN 2 MIN OF RESTORING THE NR 4 GEN, NR 4 GEN UNPARALLELED LIGHT ILLUM AGAIN. WITH BOTH FAILURES, THERE WAS A LOUD BANG HEARD FROM THE ELEC DIST CENTER AND ALSO SOME SMOKE SMELLED. TRANSFERRED TO DMI LIST NR 28550 PER MEL 24-1-1 SP 24-1 C/W PLACARD INST.