As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH 18000FT MSL, THE ACFT HAD RT NR 2 FIRE PULL & MSTR WARNING LIGHTS ILLUMINATED. THE PIC RETARDED THE RIGHT THRUST LEVER TO IDLE & THE FIRE PULL LIGHT EXTINGUISHED ALMOST IMMEDIATELY. THE CREW TERMINATED THE MISSION & RETURNED. DECLARED AN EMER & CONDUCTED AN UNEVENTFUL LANDING AT HOME FIELD. MX FOUND A WORN FIRE LOOP SENSOR ELEMENT & A LEAKING N1 MONOPOLE GASKET, BOTH WERE REPLACED & THE ACFT WAS RETURNED TO SERVICE ON 5 31 16. THE ACFT FLEW WITH NO DISCREPANCIES ON 6 1 16.