As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THE TAIL COMPARTMENT HIGH TEMPERATURE INDICATOR ILLUMINATED. EMERGENCY DECLARED. LANDING UNEVENTFUL. THE AIRCRAFT WAS GROUNDED. MAINTENANCE FOUND A RUPTURE IN THE LEFT COOLING TURBINE. REMOVED AND REPLACED LEFT AIR CYCLE MACHINE IAW AMM 21-51-01. OPERATIONAL AND LEAK CHECK NORMAL.