"Steven P. McNicoll" wrote:

wrote in message ...

A feeder route is part of an IAP, and issued under Part 97 along with the
other segments of the IAP.


Not according to the Pilot/Controller Glossary. That defines the four
segments of an instrument approach procedure as initial, intermediate,
final, and missed. I can't find "feeder route" anywhere in Part 97.

As a matter of definition a feeder route is not a segment of an IAP (but if it
looks like a duck, walks like a duck, and quacks like a duck...). As a matter
of regulation, it is a component of an IAP, which is by procedure design an
evaluated and designed segment, just like the four set forth in the definition.
Further, you can find it on any Part 97-issued Form 8260 -3 or -5 that has a
feeder route and you can find it in TERPs Paragraph 220:

220. FEEDER ROUTES. When the IAF is part of the enroute structure there may be
no need to designate additional routes for aircraft to proceed to the IAF. In
some cases, however, it is necessary to designate feeder routes from the
enroute structure to the IAF. Only those feeder routes which provide an
operational advantage shall be established and published. These should coincide
with the local air traffic flow. The length of the feeder route shall not
exceed the operational service volume of the facilities which provide
navigational guidance unless additional frequency protection is provided.
Enroute airway obstacle clearance criteria shall apply to feeder routes. The
minimum altitude established on feeder routes shall not be less than the
altitude established at the IAF.