As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS/PHO - FLT 1787 - AIR TURNBACK. ON TAKEOFF, NR 2 GENERATOR DROPPED OFF-LINE FOLLOWED BY ECAM LOW OIL PRESSURE. REMOVED AND REPLACED NR 2 IDG. OPS GOOD ON RUN-UP. REMOVED AND REPLACED COOLER. LEAK CHECK GOOD NO GROUND RUN. REFERENCE: OPERATOR CONTROL NR: AWXA960040.