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AIM

10/12/17

5−4−36

Arrival Procedures

airport or heliport in sight or, for a helicopter

point−in−space approach, the prescribed visual

reference with the surface is established. Also, if, at

any time during the approach the controller considers

that safe guidance for the remainder of the approach

cannot be provided, the controller will terminate

guidance and instruct the pilot to execute a missed

approach. Similarly, guidance termination and

missed approach will be effected upon pilot request

and, for civil aircraft only, controllers may terminate

guidance when the pilot reports the runway,

airport/heliport or visual surface route (point−in−

space approach) in sight or otherwise indicates that

continued guidance is not required. Radar service is

automatically terminated at the completion of a radar

approach.

NOTE−

1. The published MDA for straight−in approaches will be

issued to the pilot before beginning descent. When a

surveillance approach will terminate in a circle−to−land

maneuver, the pilot must furnish the aircraft approach

category to the controller. The controller will then provide

the pilot with the appropriate MDA.
2. ASR APPROACHES ARE NOT AVAILABLE WHEN
AN ATC FACILITY IS USING CENRAP.

3. NO−GYRO Approach. This approach is

available to a pilot under radar control who

experiences circumstances wherein the directional

gyro or other stabilized compass is inoperative or

inaccurate. When this occurs, the pilot should so

advise ATC and request a No−Gyro vector or

approach. Pilots of aircraft not equipped with a

directional gyro or other stabilized compass who

desire radar handling may also request a No−Gyro

vector or approach. The pilot should make all turns at

standard rate and should execute the turn immediate-

ly 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. 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.

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.

3/15/07

7110.65R CHG 2

AIM

3/29/18