As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT THE NO3 ENGINE FUEL LIGHT ILLUMINATED IN FLIGHT. NO FUEL LEAKS WERE NOTED ON POST FLIGHT CHECKS. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THE NO3 ENGINE FUEL PRESSURES SWITCH WAS DEFECTIVE AND WAS REMOVED AND REPLACED WITH A NEW SWITCH. OPS AND LEAK CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.