An aspect of a
recent AAIB bulletin caught my attention:
1. It was noted that the crew had informed ATC
that N701GC was established on the ILS when
they were only established on the localiser. It
was agreed that the training department would
emphasis the correct terminology during
recurrent ground school when discussing the
Flight Operations Bulletin.
The implication is clearly that
established on the ILS is synonymous with
established on the glideslope.
I can't find any definition of
established on the ILS in an official reference. CAP413 consistently uses the phrase
localiser established in pilot communications, but ICAO Doc 9432 includes the exchange:
...cleared for ILS runway 27 report established
...
Fastair 345 established
Many moons ago I remember discussion of
fully established (localiser and glide) vs
established (localiser only), though I never saw any documentary support for the distinction.
Because the localiser is part of the ILS, I would consider
established on the ILS to be synonymous with
established on the localiser.
What's the convention, and does anyone have an authoritative definition?