What was found
KPHX - FLT 67919 - ON ENGINE START, NR 4 ENGINE INDICATED FIRE WARNING MOMENTARILY. WHEN TESTED, THE WARNING LIGHT WAS INOPERATIVE. REMOVED AND REPLACED NR 4 ENGINE FIRE AMP. OPS CHECKS GOOD. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
KPHX - FLT 67919 - ON ENGINE START, NR 4 ENGINE INDICATED FIRE WARNING MOMENTARILY. WHEN TESTED, THE WARNING LIGHT WAS INOPERATIVE. REMOVED AND REPLACED NR 4 ENGINE FIRE AMP. OPS CHECKS GOOD. (X)