MDT FO OVERTORQUED ENGS.

Narrative

I WAS PNF; AND HAD JUST CHKED IN WITH ORD TRACON. I THEN LET THE FO KNOW I WAS GOING OFF COM #1 TO CALL THE COMPANY OPS TO LET THEM KNOW WE WERE IN RANGE; AND TO FIND OUT WHAT GATE TO EXPECT. I THEN CALLED THE FLT ATTENDANT TO LET HER KNOW WE WERE IN RANGE AND WHAT GATE WE WERE GOING TO. BEFORE I LEFT COM #1; WE WERE LEVEL AT 8000 FT. I THEN CAME BACK TO COM #1; AND BEFORE I COULD ASK THE FO IF THERE WERE ANY CHANGES; ATC GAVE US A FREQ CHANGE; SO I WENT AHEAD AND TOOK THE CALL. I THEN CALLED THE NEXT CTLR AND TOLD HIM WE WERE DSNDING OUT OF 7400 FT; WHICH I SAW ON THE ALTIMETER; AND WERE DSNDING TO XXXX. I THEN LOOKED AT THE ADU ON THE AUTOPLT; AND IT SHOWED 3000 FT. I KNEW THAT AT THAT POINT IN THE APCH; 3000 FT WAS NOT RIGHT; SO I ASKED THE FO WHAT OUR DSCNT CLRNC WAS SUPPOSED TO BE. HE WASN'T SURE EITHER. I WAS OFF COM #1 WHEN HE GOT AN ALT CHANGE. HE THEN SHUT THE AUTOPLT OFF AND STOPPED THE DSCNT AND STARTED TO CLB WHILE I WAS TRYING TO VERIFY THE ALT WITH ATC. IT WAS BUSY; SO IT TOOK A FEW TRIES TO GET AN ANSWER. ATC THEN VERIFIED IT WAS 7000 FT. I SAW HIM ADD SOME PWR BY HIS HAND MOVEMENT ON THE PWR LEVERS; BUT I NEVER SAW HOW MUCH TORQUE HE HAD PUT IN. THE REST OF THE FLT WENT FINE. WE THEN PARKED AT THE GATE; AND AFTER THE PAX WERE OFF; I SAID MY GOOD-BYES TO THE CREW AND THEN LEFT THE ACFT. THERE WAS NEVER ANY MENTION TO ME FROM THE FO THAT HE OVERTORQUED THE ENGS WHILE WE WERE IN THE AIR; OR AFTER WE WERE ON THE GND. I WAS ONLY MADE AWARE OF THIS AFTER I ARRIVED HOME AND I GOT A CALL FROM ASSISTANT CHIEF PLT THAT THE OVERTORQUE WAS ABOUT 130%.