As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOP OF DESCENT NOTED LEFT ENG EPR RADIAL AND NUMBERS MISSING ON UPPER CRT AND SEI DISPLAY. SFO INF- :PT2-TT2 PROBE 564-0122 NOT AVAIL SFO. ORDERED PROBE AOG LAX. REPLACED NR 1 PT2-TT2 PROBE IAW AMM. TEST OKAY IAW AMM. IDLE RUN NR 1 ENGINE, NO MSG DISPLAYED, AC RETURNED TO CAT III.