In a previous article, "Barry" said:
When doing an ILS approach, with the glideslope, is it a requirement to be
able to identify the outer marker or a substitute? FAR 91.175(k) lists the

"or a substitute" is the operative phrase. If the FAF is identified by an
intersection, LOM, or DME, that's an acceptable substitute for a locator
beacon.


--
Paul Tomblin http://xcski.com/blogs/pt/
"It is a universal truth that the loss of liberty will be charged to
dangers, real or imagined, from abroad." - James Madison