Narrative:

This flight was from dfw to ile and would terminate with an ILS to runway 1 circling to runway 19 due to wind conditions. Ultimately what happened was that I flew the approach including the circle portion at an airspeed in excess of that allowed for the ile circling approach procedure. The main reason this happened I believe was because my company recently changed all our procedures and flight profiles. They changed the procedures, the airspds we fly and the terms used to describe the airspds used at various stages of the approach. They gave us no training on these new procedures, they just gave us a new book and said go to it. Anyway, what happened was that due to aircraft weight we would have to fly this approach at 142 KTS until leaving MDA. The company calls the speed we fly the approach, including the circling part vmm only after extending final flaps and leaving MDA do we slow to the speed that is called vapp. I was the PF and when the first officer gave me the vmm speed of 142 KTS I looked at the approach and saw the maximum allowed speed was 140 KTS so I thought I couldn't do the approach but I was unsure. I happened to have a company check airman on my jump seat so I asked him what he thought. He said that vapp was below 140 KTS and that's what mattered so clearly he was confused, too. However, it sounded good at the time and so I shot the approach and we landed without problems. It was only later upon further review that I determined that I had flown an illegal approach.

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Original NASA ASRS Text

Title: CAPT OF A SAAB SF340B (SF34L) EXCEEDED THE MAX CIRCLE TO LAND SPD STIPULATED IN THE STANDARD APCH PROC DUE TO A DIFFERENCE OF OPINION BTWN HE AND THE CHK PLT RIDING JUMP SEAT. A SUCCESSFUL APCH AND LNDG WAS MADE AND SUBSEQUENT REVIEW BY THE RPTR PROOFED THAT THE SPD WAS EXCEEDED BY 2 KTS.

Narrative: THIS FLT WAS FROM DFW TO ILE AND WOULD TERMINATE WITH AN ILS TO RWY 1 CIRCLING TO RWY 19 DUE TO WIND CONDITIONS. ULTIMATELY WHAT HAPPENED WAS THAT I FLEW THE APCH INCLUDING THE CIRCLE PORTION AT AN AIRSPD IN EXCESS OF THAT ALLOWED FOR THE ILE CIRCLING APCH PROC. THE MAIN REASON THIS HAPPENED I BELIEVE WAS BECAUSE MY COMPANY RECENTLY CHANGED ALL OUR PROCS AND FLT PROFILES. THEY CHANGED THE PROCS, THE AIRSPDS WE FLY AND THE TERMS USED TO DESCRIBE THE AIRSPDS USED AT VARIOUS STAGES OF THE APCH. THEY GAVE US NO TRAINING ON THESE NEW PROCS, THEY JUST GAVE US A NEW BOOK AND SAID GO TO IT. ANYWAY, WHAT HAPPENED WAS THAT DUE TO ACFT WT WE WOULD HAVE TO FLY THIS APCH AT 142 KTS UNTIL LEAVING MDA. THE COMPANY CALLS THE SPD WE FLY THE APCH, INCLUDING THE CIRCLING PART VMM ONLY AFTER EXTENDING FINAL FLAPS AND LEAVING MDA DO WE SLOW TO THE SPD THAT IS CALLED VAPP. I WAS THE PF AND WHEN THE FO GAVE ME THE VMM SPD OF 142 KTS I LOOKED AT THE APCH AND SAW THE MAX ALLOWED SPD WAS 140 KTS SO I THOUGHT I COULDN'T DO THE APCH BUT I WAS UNSURE. I HAPPENED TO HAVE A COMPANY CHK AIRMAN ON MY JUMP SEAT SO I ASKED HIM WHAT HE THOUGHT. HE SAID THAT VAPP WAS BELOW 140 KTS AND THAT'S WHAT MATTERED SO CLRLY HE WAS CONFUSED, TOO. HOWEVER, IT SOUNDED GOOD AT THE TIME AND SO I SHOT THE APCH AND WE LANDED WITHOUT PROBS. IT WAS ONLY LATER UPON FURTHER REVIEW THAT I DETERMINED THAT I HAD FLOWN AN ILLEGAL APCH.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.