As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE OVERHEAT/FIRE TEST PANEL GAVE INDICATION INTERMITTENTLY. *S/D* FAULTY FIRE/OVERHEAT TEST PANEL GAVE INTERMITTENT INDICATON. REPLACED PANEL AND SYSTEM OPERATIONAL CHECKED NORMAL. PART IS NON-STOCK/NOT RECOVERABLE AND SPECIFIC COMPONENT FAILURE UNKNOWN.