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6 Answers

ILS Procedure Turn Question

Asked by: 1728 views Instrument Rating

One thing that confuses me about this approach is that if you’re approaching from the south, would you need to do the procedure turn? It wouldn’t make sense to fly to the EPSOM LOM, turn around, fly the ILS back course, do the procedure turn, and then reintercept the localizer. Does anyone know what you’re supposed to do if you’re approaching from the south (without getting vectors to final)?

 

approach plate: https://drive.google.com/file/d/1B2bSTuPjOKn_Mq4cdLpwdsqWjtM0ioli

6 Answers



  1. Bryan on Apr 22, 2022

    Please identify the airport and the approach. Your google doc is not shared publicly. But the FAA publishes all plates publicly so we could look it up if you identified it.

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  2. htf17 on Apr 22, 2022

    Sorry, I updated the image to make it viewable by anyone. But it’s the ILS 35 at KCON.

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  3. John D Collins on Apr 22, 2022

    The approach is the ILS or LOC RWY 35 at KCON. There is a NOTAM that the LOM EPSOM (CO) is out of service and the LOC only procedure may only be flown if equipped with GPS. That aside, without radar vectors, there are two feeder routes, one from RAYMY on T314 and the other from CON VOR-DME. The only IAF is at EPSOM. Regardless how you navigate to EPSOM, via one of the feeder routes or via GPS direct from any random direction, the PT is required. So coming from the South direct to EPSOM, you would turn outbound on the same side as the PT Barb is shown and fly an appropriate PT to align with the final approach course. The minimum altitude at the IAF is 2800 and the minimum altitude in the PT is 2500 and you can’t descent to 2000 until after completing the PT and intercepting the localizer course. You might think you can just proceed straight in, but this is not permitted without radar vectors and an appropriate VTF clearance from ATC.

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  4. Kris Kortokrax on Apr 22, 2022

    Why make things more complicated than necessary. The type of procedure turn to make is left up to the pilot. I would fly to EPSOM, do a standard rate turn to the right to 171, fly for a minute, turn right to intercept the inbound course. This is a racetrack pattern (Hold) and makes more sense than turning around, intercepting the back course, tracking outbound and performing the 45-180 procedure turn depicted.

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  5. Mark Kolber on Apr 25, 2022

    Yes you would have to do the procedure turn. And yes it makes sense. For one thing, given the OROCA in the area, how were you planning to get down to the 2000′ intercept altitude? Even coming in from RAYMY were you planning on intercepting the glideslope from 800 feet above it and diving down to try to capture it once you were on the final approach segment?

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  6. Warren Webb Jr on Apr 28, 2022

    Besides the problems you would have with the altitude so far above the glideslope, possibly in some cases problems receiving the glideslope signal, or possible problems with beginning the final approach segment in a 30° turn, keep in mind that procedure turns are actually a required maneuver for all approaches as a default. Then the FAA provides exceptions when they are not required. AIM 5-4-9 “The procedure turn or hold−in− lieu−of−PT is a required maneuver when it is depicted on the approach chart, unless cleared by ATC for a straight−in approach. Additionally, the procedure turn or hold−in−lieu−of−PT is not permitted when the symbol “No PT” is depicted on the initial segment being used, when a RADAR VECTOR to the final approach course is provided, or when conducting a timed approach from a holding fix.” If none of the exceptions applies to your approach, the procedure turn is required.

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