What was found
CAPTAINS MFD FAILED INFLIGHT, UNABLE TO USE REVISIONARY FUNCTION F/O PFD ERRATIC AND STAB TRIM 1 AND 2 AND MACH TRIM DISENGAGES. INTERROGATED MDC, NO CURRENT FAULTS FOUND, RE-SET CAPTS MFD CB FOR FAILED CAPTS MFD, CND. FAULT PERFORMED NR 1 AND NR 2 ENGINE RUNS CYCLED 1 AND 2 GENERATOR MFD AND PFD FOR FAULTS. PERFORMED HFTCU FAULT ISOLATION TASK IAW 27-40-00 FOR STAB TRIM DISENGAGED. (M)