What was found
DURING TRAINING FLT, DURING TAXI, CARGO BAY FIRE LIGHT ILLUMINATED TWO TIMES AND EXTINGUISHED. DURING NORMAL TAKEOFF CARGO BAY FIRE LIGHT ILLUMINATED WITH SMOKE IN COCKPIT AND CABIN. LANDED AND IMMEDIATELY NOTIFIED MX. MFG TECH TROUBLESHOOTING, DISCREPANCIES FOUND. ACFT ALLOWED TO SIT OVERNIGHT AT ENGINEERING SUGGESTION. ACFT GROUND RUN NEXT MORNING FOR 30 MINUTES AT FULL OPERATING RPM WHILE CYCLING AIR CONDITIONER OFF AND ON, COULD NOT DUPLICATE. ACFT FLOWN 1.2 HOURS WITH NO DEFECTS NOTED. ACFT RELEASED FOR SERVICES MFG ENGINEERING RECOMMENDATIONS. (K)