What was found
(CAN) DURING T/O ROLL, THE PILOT HEARD A LOUD NOISE AND THE ENGINE VIBRATION WARNING LIGHT CAME ON. AS THE ACFT WAS ALREADY AT V1 SPEED, THE PILOT REDUCED THE POWER AND CONTINUED THE T/O. EMERGENCY WAS DECLARED AND THE ACFT RETURNED TO ORIGIN WHERE A SINGLE ENGINE LANDING WAS PERFORMED. MX CREW BORESCOPED THE ENGINE AND FOUND ONE COMPRESSOR BLADE FRACTURED. THE ENGINE HAS BEEN REMOVED AND WILL BE SENT FOR INVESTIGATION AND REPAIR. MFG WILL CONTINUE INVESTIGATING THE EVENT AND ADVISE OF ROOT CAUSE ONCE ESTABLISHED.