As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, LOUD BANG OCCURRED ON LT ENGINE. ABORTED TAKEOFF. SEPARATED POWER SECTION FROM GAS GENERATOR AND DETERMINED THAT POWER TURBINE BLADES WERE BROKE OFF. REPLACED LEFT POWER SECITON MODULE AND ROUTED FAILED UNIT FOR FURTHER ANALYSIS AND REPAIR. (M)