What was found
F/O'S FMC DISPLAY MAP/NO VSPEED & LND ALT. ACFT GROUNDED. VERIFIED CORRECT SOFTWARE WAS LOADED ON BOTH COMPUTERS. PROBLEM STILL PERSISTED AFTER SWITCHING FMC TRANSFER SWITCH BETWEEN SIDES. R & R RT FMC COMPUTER, REF AMM 34-61-02-400-801. CROSSLOADED SOFTWARE, REF AMM 34-61-00-470-806. PERFORMED FMCS PERFORMANCE FACTORS ADJUSTMENT, REF AMM 34-61-00-800-801. PERFORMED FMCS OPS TEST, REF AMM 34-61-00-710-801. OPS CHECK GOOD. FMC TRANSFER SWITCH RETURNED TO NORMAL POSITION.