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Crew of a challenger 300 was cleared for ILS approach to 31C at mdw and to maintain 210 knots until runts; a fix 6.7 miles from the localizer. The crew believed that flying the glideslope from their current position would require them to fly below the class B airspace; which has a floor of 3600 feet in this area. Crew asked ATC about the clearance to violate the far restriction of airspeed below 200 knots below class B airspace. ATC confirmed the 210-knot clearance; the crew elected to maintain 200 knots as required by far 91.117(c).
| Attributes | |
| ACN | 1296069 |
| Time | |
| Date | 201509 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | C90.TRACON |
| State Reference | IL |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | Challenger 300 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
Inbound to mdw; level at 4;000 feet ATC cleared us to intercept the localizer; and cleared us for the ILS 31C approach; maintain 210 knots until runts. Knowing that on the glideslope we would descend to an altitude below class B airspace prior to reaching runts; second in command queried ATC 'so you are requiring us to maintain 210 knots below the class bravo airspace?' the immediate and terse answer was 'yes; maintain 210 knots' as instructed. A second voice came on the radio and said 'everyone on the frequency stand by'. We slowed to 200 knots prior to descending below 3;600 feet as required by far 91.117 (c). This has to stop! Unless there is an emergency; ATC cannot require us to violate this far. They are placing us in a very nasty position; where we are made to feel like criminals for obeying the law. Either change the bravo airspace to include the midway approaches; or change the ATC procedures! As a side note; the new controller did not say anything about our reduced speed; but I think I heard him start slowing other airplanes.
Original NASA ASRS Text
Title: Crew of a Challenger 300 was cleared for ILS approach to 31C at MDW and to maintain 210 knots until RUNTS; a fix 6.7 miles from the localizer. The crew believed that flying the glideslope from their current position would require them to fly below the Class B airspace; which has a floor of 3600 feet in this area. Crew asked ATC about the clearance to violate the FAR restriction of airspeed below 200 knots below Class B airspace. ATC confirmed the 210-knot clearance; the crew elected to maintain 200 knots as required by FAR 91.117(c).
Narrative: Inbound to MDW; level at 4;000 feet ATC cleared us to intercept the localizer; and cleared us for the ILS 31C approach; maintain 210 knots until RUNTS. Knowing that on the glideslope we would descend to an altitude below Class B airspace prior to reaching RUNTS; Second In Command queried ATC 'so you are requiring us to maintain 210 knots below the Class Bravo airspace?' The immediate and terse answer was 'yes; maintain 210 knots' as instructed. A second voice came on the radio and said 'everyone on the frequency stand by'. We slowed to 200 knots prior to descending below 3;600 feet as required by FAR 91.117 (c). This has to stop! Unless there is an emergency; ATC cannot require us to violate this FAR. They are placing us in a very nasty position; where we are made to feel like criminals for obeying the law. Either change the Bravo airspace to include the Midway approaches; or change the ATC procedures! As a side note; the new controller did not say anything about our reduced speed; but I think I heard him start slowing other airplanes.
Data retrieved from NASA's ASRS site 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.