As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE FROM PIT TO IPT, THE MAIN BATTERY HOT CAUTION LIGHT ILLUMINATED AND TEMPERATURE MONITOR ROSE TO 60 DEGREES CELSIUS. THE CREW DIVERTED INTO SCE, AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM, FOUND BATTERY AT FAULT. REMOVED AND REPLACED MAIN BATTERY, OPERATION CHECK GOOD IAW DHC PROCEDURES. A/C RETURNED TO SERVICE. (M)