As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT, F/O PITOT EICAS MSG AFTER RIGHT ENG START. A/C RETURNED TO GATE (BTB). MTX GROUNDED A/C. MTX REMOVED AND REPLACED R/H UPPER PITOT PROBE WITH A NEW QICK DISCONNECT PITOT PROBE IAW B767 AMM 34-11-01. PITOT HEAT TEST SWITCH CHECK GOOD. NO MAINTENANCE MESSAGES AT THIS TIME. SEALANT APPLIED AT 1700Z 15 MAR 26. A/C REMAINS ETOPS 180. A/C RETURNED TO SERVICE.