As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER TASK CARD N8005003 - #1 ENGINE TOP RIGHT EGT SIGNAL IS OUT OF RANGE - FAULT CODE 77-101841. GROUNDED - YES. REF CORRECTIVE ACTION ON TSR703709 AFTER CLEANING EGT PROBES & EGT SYSTEM RESISTANCE CHECKS, POST ENGINE RUN SHOWS MSG MOVED OFF FLT LEG 0. REPAIR & GROUND VERIFICATION PASSED, THIS CLEARS PLT.