As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS NOT GROUNDED. THE FLIGHT ENCOUNTERED TIRE PRESSURE MESSAGE (AMBER) ON EICAS SCREEN. NR 1 TIRE PRESSURE MOVING BETWEEN 164-170. INTERMITTENT AMBER ON NR 1 AND NR 2 TIRES NR 2 STEADY AT 205. NR 1 WENT BLANK BEFORE LANDING. AN EMERGENCY WAS DECLARED, AND THE FLIGHT LANDED AT DFW WITHOUT FURTHER INCIDENT. REPLACED NR 1 TIRE PRESSURE SENSOR AS PER AMM 32-49-03.