As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 ENGINE EGT EXCEEDANCE FOUND (REF ASA LOG PAGE# 60463073). #1 EGT INDICATION SYSTEM FAULTY AND PERFORMED EGT CLEANING REF B737-800 AMM 77-21-00-140-801. GROUNDED - YES. NO RECENT OR FAULT HISTORY FAULTS LOGGED ON #1 ENGINE. THIS PLT DEFERRAL CLEARED.