As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - FLT 96 - ON CLIMB-OUT FROM SFO, CREW RECEIVED THE FIRE WARNING BELL AND LIGHT FOR THE LEFT ENGINE. FLIGHT RETURNED TO SFO AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED BITE FOR THE FIRE WARNING SYSTEM AND FOUND NO PROBLEMS. (M)