As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#178, LAS-BOS. (AIRCRAFT DIVERTED TO LAX) ' DURING ENROUTE CLIMB WXR/T FAULT APPEARED. CYCLED ALL SWITCHES AND RADAR WOULD RETURN FOR A SHORT PERIOD THEN FAIL AGAIN; PFR HITTING RTU AND UNIT WAS COLD. REMOVED AND REPLACED RTU 13SQ1 AS PER AMM 34-41-33. BITE CHECK OK AND OPS CHECK OK. A/C OK FOR SERVICE.'