As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED OF A LEFT PITOT HEAT FAIL ANNUNCIATOR ILLUMINATED. THE MAINTENANCE VENDOR TROUBLESHOT THE LEFT PITOT SYSTEM AND FOUND PITOT HEAD FAILED. REMOVED THE DEFECTIVE PITOT HEAD AND INSTALLED A NEW PITOT HEAD. OPERATIONAL CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.