What was found
AIRCRAFT AT CRUISE, ALT 11,000 FEET, NR 1 PROPELLER BLADE BROKE APPROXIMATELY 10 INCHES FROM HUB ON NR 2 ENGINE. BLADE DID NOT CONTACT AIRCRAFT. DAMAGE TO COWLING, NACELLE, REAR ENGINE MOUNT, OUTBOARD FLAP, WING TRAILING EDGE. ENGINE REMAINED ON WING. CREW MADE NORMAL LANDING. REMAINING PORTION OF BLADE REMOVED FROM PROP HUB AND SENT TO NTSB LAB FOR INSPECTION. (X)