Narrative:

My student and I had completed 3 ILS approachs at apa and had been vectored by approach onto the localizer and cleared for the approach. 2 mi outside the LOM we were told to contact tower, which we did. Tower told us to 'report the power lines' (a locally standard callout) which lie 4 mi from the runway and 3 mi inside the LOM. All the time on tower frequency we were given no TA's and heard none given to other aircraft which would tell others about our position. We reported the power lines and tower told us to sidestep left to a parallel runway. There was no urgency or immediacy in his voice. As this was acknowledged, the westwind jet was noticed passing overhead, 40-50 ft above us. As my student had the localizer and GS nailed, I feel the westwind may have been 1 degree or less above GS. The sidestep was quickly accomplished as we were aware of wake turbulence and the landing was uneventful. When we visited the tower, the controller could not satisfactorily explain why there were no TA's given to either airplane. He did call the crew of the other airplane, and they said they were training, performing VFR circuits, and neither the PF nor PNF/ip saw us. The problem as I see it is twofold: 1) the tower controller just finished a 'rush' and perhaps let down his vigilance. 2) the westwind crew both had their eyes inside the cockpit and, on a VFR day and operation, were relying on tower to tell them of traffic and were not looking outside.

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Original NASA ASRS Text

Title: NMAC BTWN A BEECH DUCHESS BE76 ON A PRACTICE ILS APCH AT 4 MI OUT, AND AN IA1124 WESTWIND PASSING OVERHEAD ON THE SAME APCH. NO TA'S WERE ISSUED.

Narrative: MY STUDENT AND I HAD COMPLETED 3 ILS APCHS AT APA AND HAD BEEN VECTORED BY APCH ONTO THE LOC AND CLRED FOR THE APCH. 2 MI OUTSIDE THE LOM WE WERE TOLD TO CONTACT TWR, WHICH WE DID. TWR TOLD US TO 'RPT THE PWR LINES' (A LOCALLY STANDARD CALLOUT) WHICH LIE 4 MI FROM THE RWY AND 3 MI INSIDE THE LOM. ALL THE TIME ON TWR FREQ WE WERE GIVEN NO TA'S AND HEARD NONE GIVEN TO OTHER ACFT WHICH WOULD TELL OTHERS ABOUT OUR POS. WE RPTED THE PWR LINES AND TWR TOLD US TO SIDESTEP L TO A PARALLEL RWY. THERE WAS NO URGENCY OR IMMEDIACY IN HIS VOICE. AS THIS WAS ACKNOWLEDGED, THE WESTWIND JET WAS NOTICED PASSING OVERHEAD, 40-50 FT ABOVE US. AS MY STUDENT HAD THE LOC AND GS NAILED, I FEEL THE WESTWIND MAY HAVE BEEN 1 DEG OR LESS ABOVE GS. THE SIDESTEP WAS QUICKLY ACCOMPLISHED AS WE WERE AWARE OF WAKE TURB AND THE LNDG WAS UNEVENTFUL. WHEN WE VISITED THE TWR, THE CTLR COULD NOT SATISFACTORILY EXPLAIN WHY THERE WERE NO TA'S GIVEN TO EITHER AIRPLANE. HE DID CALL THE CREW OF THE OTHER AIRPLANE, AND THEY SAID THEY WERE TRAINING, PERFORMING VFR CIRCUITS, AND NEITHER THE PF NOR PNF/IP SAW US. THE PROB AS I SEE IT IS TWOFOLD: 1) THE TWR CTLR JUST FINISHED A 'RUSH' AND PERHAPS LET DOWN HIS VIGILANCE. 2) THE WESTWIND CREW BOTH HAD THEIR EYES INSIDE THE COCKPIT AND, ON A VFR DAY AND OP, WERE RELYING ON TWR TO TELL THEM OF TFC AND WERE NOT LOOKING OUTSIDE.

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.