What was found
F/O FMC P/RST ANNUNCIATOR LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED DFCS, A/T FAULT HISTORY, NO FAULTS NOTED. THERE WERE NUMEROUS FMC DATA INV (CHB) MESSAGE NR 22-11822. FOUND WHEN F/O AUTOFLIGHT STATUS ANNUNCIATOR TEST SWITCH SELECTED TO POSITION 2 (LOWER), THE AMBER "FMC P/RST" ANNUNCIATOR REMAINS LIT, WILL NOT EXTINGUISH EXCEPT BY MANUALLY RESETTING ANNUNCIATOR. REMOVED & REPLACED NR 2 FMC, REF B737-800 AMM 34-61-02. ACCOMPLISHED FMC SOFTWARES CROSSLOAD PROCEDURES & VERIFIED ALL SOFTWARES ARE CORRECT PER AIPC. ALSO, ACCOMPLISHED FMCS PERFORMANCE FACTORS ADJUSTMENT, REF AMM 34-61-00-800-801. ACCOMPLISHED FMCS OPERATIONAL TEST, REF AMM 34-61-00-710-801, FIM 34-61 TASK 801. OPERATIONS CHECK NORMAL.