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also request a No-Gyro vector or approach. The pilot
should make all turns at standard rate and should
execute the turn immediately upon receipt of
instructions. For example, “TURN RIGHT,” “STOP
TURN.” When a surveillance or precision approach
is made, the pilot will be advised after the aircraft has
been turned onto final approach to make turns at half
standard rate.
5−4−12. Radar Monitoring of Instrument
Approaches
a. PAR facilities operated by the FAA and the
military services at some joint-use (civil and military)
and military installations monitor aircraft on
instrument approaches and issue radar advisories to
the pilot when weather is below VFR minimums
(1,000 and 3), at night, or when requested by a pilot.
This service is provided only when the PAR Final
Approach Course coincides with the final approach
of the navigational aid and only during the
operational hours of the PAR. The radar advisories
serve only as a secondary aid since the pilot has
selected the navigational aid as the primary aid for the
approach.
b. Prior to starting final approach, the pilot will be
advised of the frequency on which the advisories will
be transmitted. If, for any reason, radar advisories
cannot be furnished, the pilot will be so advised.
c. Advisory information, derived from radar
observations, includes information on:
1. Passing the final approach fix inbound
(nonprecision approach) or passing the outer marker
or fix used in lieu of the outer marker inbound
(precision approach).
NOTE−
At this point, the pilot may be requested to report sighting
the approach lights or the runway.
2. Trend advisories with respect to elevation
and/or azimuth radar position and movement will be
provided.
NOTE−
Whenever the aircraft nears the PAR safety limit, the pilot
will be advised that the aircraft is well above or below the
glidepath or well left or right of course. Glidepath
information is given only to those aircraft executing a
precision approach, such as ILS or MLS. Altitude
information is not transmitted to aircraft executing other
than precision approaches because the descent portions of
these approaches generally do not coincide with the
depicted PAR glidepath. At locations where the MLS
glidepath and PAR glidepath are not coincidental, only
azimuth monitoring will be provided.
3. If, after repeated advisories, the aircraft
proceeds outside the PAR safety limit or if a radical
deviation is observed, the pilot will be advised to
execute a missed approach unless the prescribed
visual reference with the surface is established.
d. Radar service is automatically terminated upon
completion of the approach.
7/31/08 AIM
AIM 2/14/08
5−4−32 Arrival Procedures
5−4−13. ILS/MLS Approaches to Parallel
Runways
a. ATC procedures permit ILS instrument
approach operations to dual or triple parallel runway
configurations. ILS/MLS approaches to parallel
runways are grouped into three classes: Parallel
(dependent) ILS/MLS Approaches; Simultaneous
Parallel (independent) ILS/MLS Approaches; and
Simultaneous Close Parallel (independent) ILS
Precision Runway Monitor (PRM) Approaches. (See
FIG 5−4−15.) The classification of a parallel runway
approach procedure is dependent on adjacent parallel
runway centerline separation, ATC procedures, and
airport ATC radar monitoring and communications
capabilities. At some airports one or more parallel
localizer courses may be offset up to 3 degrees. Offset
localizer configurations result in loss of Category II
capabilities and an increase in decision height (50’).
b. Parallel approach operations demand
heightened pilot situational awareness. A thorough
Approach Procedure Chart review should be
conducted with, as a minimum, emphasis on the
following approach chart information: name and
number of the approach, localizer frequency, inbound
localizer/azimuth course, glide slope intercept
altitude, decision height, missed approach
instructions, special notes/procedures, and the
assigned runway location/proximity to adjacent
runways. Pilots will be advised that simultaneous
ILS/MLS or simultaneous close parallel ILS PRM
approaches are in use. This information may be
provided through the ATIS.
c. The close proximity of adjacent aircraft
conducting simultaneous parallel ILS/MLS and
simultaneous close parallel ILS PRM approaches
mandates strict pilot compliance with all ATC
clearances. ATC assigned airspeeds, altitudes, and
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