As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ADVANCING TWIST GRIPS TO FLIGHT, ENG 2 DC VOLTAGE SHOWED 28.2 FLICKERING TO 28.0. AFTER TURNING ON THE LANDING LIGHT, ENG2 DC VOLTAGE STABILZED AT 28.0. AVIONICS PERFORMED A GENERATOR RESET WITH NO EFFECT. TWIST GRIPS WERE ROTATED TO IDLE AND DC VOLTAGE DROPPED TO 27.8 ON ENG2. SHUTDOWN PERFORMED WITH NO GEN AMPS SPIKE. REMOVED AND REPLACED STARTER GENERATOR IAW AMM 24-30-00, 4-2.