As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING RUN-UP, #2 VOLTAGE INDICATOR SPIKED TO 32V WITH RED UNDERLINE AND SINGLE WARNING GONG. ONLY RIGHT SIDE MASTER CAUTION INDICATION CAME ON. REMOVED AND REPLACED STARTER GENERATOR IAW AMM 24-30-00, 4-2. MOC OK IAW AMM 05-60-00, 6-12.