RJFlyer said:
The question becomes, is the feeder considered a "published segment" of the approach?
It is.
In a TERPS sense, a feeder route is an approach procedure segment that is created when the IAF is not on an airway. It's not part of the enroute structure, but is an off-airway segment designed to get you from a point in the enroute structure to the IAF. The =only= place it's published is as a segment of an approach. It follows the same TERPS criteria for obstructions, etc as any other approach segment. (The primary TERPS paragraph is 220 although there is, as usual with TERPS, a lot of other information elsewhere in the volume)
It's probably not as clear as it might be, but it's covered in the part of AIM 5-4-6, "Approach Clearance" that says (no, I'm not yelling. The allcaps is the AIM's
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a. An aircraft which has been cleared to a holding fix and subsequently "cleared . . . approach" has not received new routing. Even though clearance for the approach may have been issued prior to the aircraft reaching the holding fix, ATC would expect the pilot to proceed via the holding fix (his/her last assigned route), and the feeder route associated with that fix (if a feeder route is published on the approach chart) to the initial approach fix (IAF) to commence the approach. WHEN CLEARED FOR THE APPROACH, THE PUBLISHED OFF AIRWAY (FEEDER) ROUTES THAT LEAD FROM THE EN ROUTE STRUCTURE TO THE IAF ARE PART OF THE APPROACH CLEARANCE.
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It really is pretty basic stuff, although understandably forgotten since, in practice, radar coverage has made the use of the procedure pretty uncommon. Lack of use can make even the simplest things open to question. Heck, if we didn't use it all the time, the answer to 1+1=? would probably be subject to the usual group of "different opinions on the subject."
