As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF CREW TURN ON BLEED MODE MAN COOL. CAPTAIN NOTED ITT WAS CLIMBING AT 780C. TORQUE HAD DROPPED TO 2500LB. TEMP STABILIZED BUT TORQUE CONTINUED TO DROP. THEN IT GOT TO 2000LB CREW DECLARED EMERGENCY AND RETURNED TO FIELD. LANDED SAFELY WITH NO FURTHER INCIDENT. NO DEFECTS NOTED, OPS CK NORMAL.