As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L AUX PITOT EICAS MSG DURING TAXI OUT, AC RETURNED TO GATE (BTB) AND MTX GROUNDED AC . MTX . REMOVED AND REPLACED L AUX PITOT IAW B767 AMM 34-11-01 OPS AND LEAK CHECK GOOD CHECK.ALSO ACCOMPLISH LOW RANGE LEAK CHECK ON THE L/H AUX PITOT PROBE IAW AMM 34-11-00. LOW RANGE LEAK TEST OK @ LESS THAN 10FT/MIN.INSTALLED NEW RELAYS K522 AND K515 IAW FIM-30-31 FT 804. AND RETURNED AC TO SERVICE.