As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELP INFLIGHT T1540/31JUL TUS TO DFW. CREW REPORTED LT GENERATOR CLICKED OFF AND ON SEVERAL TIMES. UNABLE TO DISCONNECT CONSTANT SPEED DRIVE. SHUT DOWN NR 1 ENGINE AND LANDED ELP WITHOUT INCIDENT. ENGINE WINDMILL TIME 15 MINUTES. SYSTEM GROUND CHECKED NORMAL OPS. (CLOSED)