As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. JFK-CUN FLIGHT. DURING TAKEOFF, CREW REPORTED A LEFT GENERATOR DRIVE AND A LEFT IDG FAULT LIGHTS. ABORTED TAKEOFF AT 90 KNOTS. REMOVED AND REPLACED GENERATOR CONTROL UNIT IAW AMM 24-22-02 AND THE INTEGRATED DRIVE GENERATOR IAW AMM 24-11-01 (AALA20170201020). LEAK AND OPERATIONAL CHECK GOOD.