What was found
DURING CLIMB, HEARD A BANG SOUND ASSOCIATED WITH A LATERAL MOVEMENT OF THE AIRCRAFT AND OIL SMELL IN THE CABIN. NO. 2 ENGINE RPM DECREASED WITH HIGH VIBRATIONS. THROTTLE WAS REDUCED ON THE AFFECTED ENGINE AND NOTICED A RISE IN EGT. AN IMMEDIATE DECISION WAS MADE TO SHUT-DOWN THE ENGINE. NO OVERSPEED INDICATIONS WERE NOTED. WE RECENTLY RECEIVED THE FOLLOWING REPORT FROM THE ENGINE SHOP: FAN BLADE PLATFORM AND AFT PLATFORM PIN/COUNTER WEIGHT ARE MISSING (LIBERATED) FROM THE ENGINE. EXTENSIVE SECONDARY DAMAGE IS OBSERVED ON THE CONTAINMENT CASE, FAN BLADES, BOOSTER BLADES/VANES AND COMPRESSOR BLADE/VANES. GAS PATH COMPONENTS DOWNSTREAM OF THE COMBUSTOR ARE COATED IN DEBRIS. PART NUMBER OF THE MISSING COMPONENT (BASED ON CONFIGURATION OF THE ENGINE) ARE: PLATFORM P/N: 340-001-816-0; PIN P/N: 649-782-300-0; COUNTER WEIGHT P/N: 340-251-201-0.