What was found
DURING CRUISE, AT 20,000 FEET, THE NR 2 BLEED WARNING LIGHT CAME ON. MINUTES LATER THE BAGGAGE COMPARTMENT SMOKE DETECTOR ILLUMINATED, PROCEEDED TO ACTIVATE THE COMPARTMENT FIRE EXTINGUISHER. RETURNED TO INDIANAPOLIS WITHOUT FURTHER INCIDENT. FOUND THE NR 2 ENGINE PNEUMATIC DUCT LOOSE AT THE AFT RIGHT BAGGAGE COMPARTMENT ACCESS PANEL. REPLACED THE O-RINGS, RESECURED THE DUCT AND NO LEAKS NOTED AT THIS TIME, OK FOR SERVICE. (M)