As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AT FLIGHT LEVEL 360 CAPTAIN LOST INDICATED AIR SPEED MC ENGINE LIGHT ILLUMINATED AFTER SEVERAL MINUTES INDICATED AIR SPEED RETURNED AND MC ENGINE LIGHT WENT OUT. FLIGHT DIVERTED TO DFW ON ACCOUNT OF FAULT. EMERGENCY WAS NOT DECLARED AND POSSIBLY OVERWEIGHT FOR LANDING. CHANGED LEFT PITOT AIR DATA MODULE PER AMM 34-21-04.