As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHIE ACCOMPLISHING T/C 78273000 FOUND #1 ENGINE FAULT CODE 77-20871 THE TOP LEFT EGT SIGNAL (T495S4) IS OUT OF RANGE ECONOMIC FAULT. GROUNDED - YES. NO RECENT FAULTS PER T/C 78273000THIS CLEARS PLT 60647194 AND PLT 60647193SEAMC PETER NOTIFIED.