As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPEAT WRITE UP, DURING CRUISE AT 41000 RED AOA MESSAGE ILLUMINATED OVER AOA TAPES ON LEFT AND RIGHT PFDS AOA TAPES DISSAPEARED AS WELL. MESSAGE CLEARED DESCENDING THROUGH 38000 AND REMAINED OFF THE REST OF THE FLIGHT. MESSAGE WAS ON FOR ABOUT 1 HOUR. REMOVED FAILED AUXILIARY AOA TRANSMITTER PN 856-077-010 SN FK2071 AND INSTALLED NEW CUSTOMER SUPPLIED AUXILIARY AOA VANE PN 856-0077-010 SN FK1954 PERFORMED FUNCTIONAL TEST WITH NO DEFECTS. NOTED WORK DONE IAW CL650 AMM 34-20-00