As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOG PAGE NR 117738. DURING TAXI, ENGINE NR 1 OIL PRESSURE INDICATOR DROPPED TO (ZERO). ALL OTHER PARAMETERS NORMAL, RETURN TO BLOCK IAW AOM ALTERNATE PROCEDURES. REMOVED AND REPLACED ENGINE NR 1 OIL PRESSURE TRANSMITTER IAW MM 79-33-01. OPERATIONAL CHECK FOUND NORMAL IAW MM 71-00-00.