As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA- CLIMBING OUT OF FAT, THE NR 2 FIRE WARNING ALARM GAVE FOUR SHORT WARNINGS OF A SECOND OR LESS. ABNORMAL INDICATIONS 470/480 TGT 410, WARNING BETWEEN 10,000 AND 25,000 FEET. REMOVED AND REPLACED NR 2 ENGINE FIRE CONTROL UNIT AND NR 2 SENSING LOOP CABLE. AIRCRAFT RETURNED TO SERVICE. OPERATIONAL CHECKS GOOD.