What was found
RT ENG FIRE WARNING LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF. THROTTLE RETARDED AND FIRE WARNING LIGHT WENT OUT. THIS IS THE SECOND IN-FLIGHT FALSE FIRE WARNING LIGHT ILLUMINATION ON THIS RENTAL ENGINE. INVESTIGATION IN PROGRESS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RT ENG FIRE WARNING LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF. THROTTLE RETARDED AND FIRE WARNING LIGHT WENT OUT. THIS IS THE SECOND IN-FLIGHT FALSE FIRE WARNING LIGHT ILLUMINATION ON THIS RENTAL ENGINE. INVESTIGATION IN PROGRESS.