As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING FROM FL270 TO FL160 AND LEVELING OFF, FLIGHT CREW EXPERIENCED A SIGNIFICANT LOSS OF POWER TO BOTH ENGINES. AIRCRAFT WAS CONFIGURED AT TBL FOR LANDING. MAX ITT INDICATED 753 DEGREES. N1 INDICATED 82.5 PERCENT. CREW WAS ONLY ABLE TO MAINTAIN A MAXIMUM SPEED OF 140KTS. IN LEVEL FLIGHT, REGARDLESS OF THROTTLE SETTINGS. WITH PITCH DOWN, CREW WAS ABLE TO ACHIEVE 156KTS.