As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KLRD - FLT 63168 - NR 1 ENGINE FIRE WARNING CAME ON IN-FLIGHT MOMENTARILY, WARNING LIGHT EXTINGUISHED WHEN NR 1 POWER LEVER WAS PULLED BACK TO IDLE. FOUND PRESSURE REGULATOR VALVE LEAKING, REMOVED AND REPLACED PRESSURE REGULATOR VALVE IAW DMM 36-12-1. OPS CHECKED NORMAL IAW DMM 36-12-0. FIRE WARNING OPS CHECKED NORMAL IAW DMM 26-10-0. (X)