As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROLLOUT FIRE ALERT NR 1 ENG. ACCOMPLISHED ENG FIRE CKLIST, USED AGENT 1. AGENT 2 WOULD NOT FIRE. REMOVED AND REPLACED LT AND RT FIRE DET HARNESSES REF MM 71-50-04-4. NR 1 ENG FIRE WARN TEST OK PER MM 26-11-02-5. SEE MTSI 26-11-3714 FOR ADD'L INFO.