What was found
AUG 1, 2006 DURING THE TAKEOFF ROLL, THE CREW OBSERVED WHAT THEY BELIEVED TO BE A LOSS OF POWER FROM THE LT HAND ENGINE AND FELT A VIBRATION. THE TAKEOFF WAS ABORTED AND THE AIRPLANE RETURNED FOR MAINTENANCE. INSPECTION OF THE LT ENGINE REVEALED DAMAGE TO THE AC GENERATOR AND THE ENGINE DRIVEN HYDRAULIC PUMP CONSISTENT WITH A SEVERE VIBRATION.. ENGINE WAS REMOVED AND INSPECTED. PENDING FURTHER METALLURGICAL ANALYSIS, IT APPEARS THAT COMPRESSOR FAILURE WAS DUE TO THE SEIZURE OF THE TORQUEMETER MIDSHAFT BEARING CAUSING A SEVERE VIBRATION OR WHIP. AS A RESULT, TORQUEMETER TO COMPRESSOR COUPLING WAS BROKEN, CAUSING ENGINE FAILURE. (K)