As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VARIOUS ANOMALOUS (SIC) INDICATIONS FROM FMA/MCP. A/T ANN RAPIDLY CHANGES MODES, SPURIOUS ALTITUDES APPEAR. IN ALT HOLD A/C CLIMBS & DESCENDS +/- 300 FT. VS MODE CYCLES, ALT HOLD CYCLES. CLEANED AND CHECKED EFIS RT AND CLEANED CONNECTOR TO THE FMA. PERFORMED CHECK THRU CDU. NO DUPLICATE FAILURES PER MM 22-10-00.