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Instructional flight enters class B airspace without clearance on a practice ILS missed approach at underlying airport.
| Attributes | |
| ACN | 445354 |
| Time | |
| Date | 199908 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ftg.airport |
| State Reference | CO |
| Altitude | msl bound lower : 7000 msl bound upper : 7500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d01.tracon |
| Operator | general aviation : instructional |
| Make Model Name | M-20 Scotsman |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer & glide slope : 26 |
| Flight Phase | landing : missed approach |
| Route In Use | approach : instrument precision |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | instruction : instructor |
| Qualification | pilot : instrument pilot : cfi pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 34 flight time total : 1314 flight time type : 14 |
| ASRS Report | 445354 |
| Person 2 | |
| Affiliation | other |
| Function | instruction : trainee |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 3 flight time total : 800 flight time type : 200 |
| ASRS Report | 445350 |
| Events | |
| Anomaly | airspace violation : entry non adherence : clearance non adherence : far non adherence : published procedure |
| Resolutory Action | flight crew : exited penetrated airspace |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We had used den approach for vectors from apa to front range airport to do some practice instrument approachs. We were vectored at 7500 ft MSL. Approach was busy and my student had asked them to repeat calls a couple of times (due to trying to tune an old analog ADF receiver). So after the first ILS runway 26 approach, we elected to not return to den approach. (They had said 'radar services terminated, frequency change approved.') we wanted to do the published missed approach, which calls for a climbing left turn to 7100 ft. (It also calls for a climb straight ahead to 6000 ft before turning, but that would have taken us into the den approach corridor for the north/south runways. So I had him initiate the left turn prior to reaching 6000 ft.) because he had trouble tracking the GS, and because we had been vectored at 7500 ft, I asked him to climb to 7500 ft before checking the den class B airspace terminal area chart. The floor of the class B airspace was 7000 ft. There were 2 problems. First was that I should have checked the terminal area chart for the floor of the class B airspace before requesting that my student climb to that altitude. The second problem is that the published 'missed approach' procedure takes you into class B airspace. Traffic pattern altitude at ftg is 6500 ft. Many pilots use the technique of overflying the airport 500 ft above traffic pattern altitude to check the windsock. You couldn't do this at ftg without getting into the class B airspace. Both of these points (missed approach procedure, overflying) suggest that the class B airspace should be at least 500 ft higher.
Original NASA ASRS Text
Title: INSTRUCTIONAL FLT ENTERS CLASS B AIRSPACE WITHOUT CLRNC ON A PRACTICE ILS MISSED APCH AT UNDERLYING ARPT.
Narrative: WE HAD USED DEN APCH FOR VECTORS FROM APA TO FRONT RANGE ARPT TO DO SOME PRACTICE INST APCHS. WE WERE VECTORED AT 7500 FT MSL. APCH WAS BUSY AND MY STUDENT HAD ASKED THEM TO REPEAT CALLS A COUPLE OF TIMES (DUE TO TRYING TO TUNE AN OLD ANALOG ADF RECEIVER). SO AFTER THE FIRST ILS RWY 26 APCH, WE ELECTED TO NOT RETURN TO DEN APCH. (THEY HAD SAID 'RADAR SVCS TERMINATED, FREQ CHANGE APPROVED.') WE WANTED TO DO THE PUBLISHED MISSED APCH, WHICH CALLS FOR A CLBING L TURN TO 7100 FT. (IT ALSO CALLS FOR A CLB STRAIGHT AHEAD TO 6000 FT BEFORE TURNING, BUT THAT WOULD HAVE TAKEN US INTO THE DEN APCH CORRIDOR FOR THE N/S RWYS. SO I HAD HIM INITIATE THE L TURN PRIOR TO REACHING 6000 FT.) BECAUSE HE HAD TROUBLE TRACKING THE GS, AND BECAUSE WE HAD BEEN VECTORED AT 7500 FT, I ASKED HIM TO CLB TO 7500 FT BEFORE CHKING THE DEN CLASS B AIRSPACE TERMINAL AREA CHART. THE FLOOR OF THE CLASS B AIRSPACE WAS 7000 FT. THERE WERE 2 PROBS. FIRST WAS THAT I SHOULD HAVE CHKED THE TERMINAL AREA CHART FOR THE FLOOR OF THE CLASS B AIRSPACE BEFORE REQUESTING THAT MY STUDENT CLB TO THAT ALT. THE SECOND PROB IS THAT THE PUBLISHED 'MISSED APCH' PROC TAKES YOU INTO CLASS B AIRSPACE. TFC PATTERN ALT AT FTG IS 6500 FT. MANY PLTS USE THE TECHNIQUE OF OVERFLYING THE ARPT 500 FT ABOVE TFC PATTERN ALT TO CHK THE WINDSOCK. YOU COULDN'T DO THIS AT FTG WITHOUT GETTING INTO THE CLASS B AIRSPACE. BOTH OF THESE POINTS (MISSED APCH PROC, OVERFLYING) SUGGEST THAT THE CLASS B AIRSPACE SHOULD BE AT LEAST 500 FT HIGHER.
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.