As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT, HAD AN UNUSUAL WHINING NOISE FROM THE RT ENGINE. SHUTDOWN APU & NOISE CONTINUED. GROUND CONTROL REPORTED SMOKE COMING FROM THE RT ENGINE. SHUTDOWN ENGINES. FOUND OIL LEVELS ARE NORMAL. R & R RT GENERATOR, MOUNTING PAD & MAGNETIC GEARBOX SEAL. OPS & LEAK CHECKED GOOD. R & R RIGHT GENERATOR CONTROLLER. OPS CHECKED GOOD.