As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORIGINAL FAILURE OF PROBE NOTED ON CAS 10/02/19 S/N A96142. REPLACEMENT TAT S/N B456 (INSPECTED/TESTED) FAILED 10/28/19. REPLACEMENT TAT S/N B821 (REPAIRED)FAILED 11/06/19. REPLACED WITH S/N A67219. (REPAIRED) GOOD SO FAR. WE HAVE HAD 3 REPAIRED PROBES FAIL IN SHORT TIME AND HAVE PROVEN THEM BAD BY PUTTING THEM ON BOTH SIDES OF THE AIRCRAFT.