What was found
UNSUCCESSFUL AIII PRACTICE APPROACH; JUST INSIDE THE MARKER, LOCALIZER WENT ALMOST FULL SCALE TO THE RIGHT (A/C L OF COURSE) = APPRCH WARN & NO AIII, PLANE CORRECTED TO CENTERLINE. HUD DISPLAY WENT BLANK & WAS INTERMITTENT. GROUNDED - YES. ACCOMPLISHED HGS SENSORS & SYSTEM TEST REF SMM 34-36-00, OPS CK NML. FLIGHT HISTORY SHOWS NUMEROUS ASSOCIATED FAULT MESSAGES, SUCH AS FLARE CMD NOT INIT, ILS ANT 1/2 AFT, ILS ANOMALY DETECT, A/S EXCEED, TRK ERROR EXCEEDED, CLP LAT GUIDANCE INVALID, SM LAT GUIDANCE INVALID, ETC.