As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AUX PITOT MESSAGE AFTER ENGINE START AND AC RETURNED TO GATE (BTB) MTX GROUNDED AC . MTX REPLACED L AUX PITOT PROBE IAW AMM 34-11-00 OPS AND LEAK TEST GOOD PITOT HEAT TEST GOOD IAW AMM 34-11-01 PITOT STATIC TEST GOOD OK FOR SERVICE.MTX RETURNED AC TO SERVICE