As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT OF DSM PASSING 3,000 FT, THE NR 5 MAIN CARGO SMOKE DETECTOR ILLUMINATED. DETECTOR REMAINED ON APPROXIMATELY 2 MINUTES, THEN EXTINGUISHED. APPROXIMATELY 4 MINUTES LATER THE NR 5 LIGHT ILLUMINATED AGAIN. FOUND PACK C/B TRIPPED. REMOVED AND REPLACED L/PACK VALVE. REPAIRED BLEED AIR LEAK AT CHECK VALVE. RAN PACKS, OPS NORMAL AFTER DUCTS PURGED.