ILS/Localizer Approach

CHAPTER THREE

SNFO/SWSO VOICE COMMUNICATIONS

FAF Inbound.

Example

SNFO/SWSO:

"Mobile Tower, KATT 820, final approach fix,

three down and locked, for the option."

NOTE

The name of the FAF may be used, (if there is a name), i.e.

"BRENT Inbound". "For the option" may be replaced by "full

stop", "touch and go", or "low approach" as appropriate.

Missed Approach.

Example

SNFO/SWSO:

"Sherman Tower, KATT 820, missed approach,

(with stated reason)."

Reasons may include "runway not in sight" or "lost course guidance." When

Tower turns you over to the Approach Controller, inform ATC of the missed

approach with your intentions.

ii.

Intentions may include:

Request the same approach.

Request a different approach with lower minimums.

Request clearance to your alternate.

317. ILS/LOCALIZER APPROACH

An ILS approach is a precision approach utilizing a localizer antenna for transmitting

course information and a glideslope antenna for glideslope information. A localizer approach is

considered a non-precision approach due to non-availability of glideslope information. Notice

that the ILS and the Localizer both use identical frequencies for course information and are listed

on the same approach plate (see Figure 3-10). Because the ILS has glideslope information, the

minimums for the ILS will normally be lower than the Localizer minimums.

ILS or Localizer approaches can be initiated from low or high altitude. Low ILS or

Localizer approaches (found in the Low Altitude Approach plates) are assumed. To request a

HI-ILS approach, you must use the term "HI-ILS." If an enroute descent has been given from

center, you are most likely being set up for a low altitude approach. Requesting an enroute

descent to a HI-ILS would not make sense.

3-26 IFR COMMUNICATIONS