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REFERENCEFAAO
JO 7110.65, Para 2-6-5, Calm Wind Conditions.
JO 7110.65S 2/14/08
3-5-2
2/14/08 JO 7110.65S
Airport Surface Detection Procedures 3-6-1
Section 6. Airport Surface Detection Procedures
3-6-1. EQUIPMENT USAGE
a. The operational status of ASDE systems shall
be determined during the relief briefing, or as soon as
possible after assuming responsibility for the
associated position.
b. Use ASDE systems to augment visual observation
of aircraft landing or departing, and aircraft or
vehicular movements on runways and taxiways, or
other parts of the movement area.
1. ASDE systems with safety logic shall be
operated continuously.
2. ASDE systems without safety logic shall be
operated:
(a) Continuously between sunset and sunrise.
(b) When visibility is less than the most
distant point in the active movement area, or
(c) When, in your judgment, its use will assist
you in the performance of your duties at any time.
3-6-2. IDENTIFICATION
a. To identify an observed target/track on an
ASDE system display, correlate its position with one
or more of the following:
1. Pilot/vehicle operator position report.
2. Controller's visual observation.
3. An identified target observed on the ASR or
CTRD.
b. An observed target/track on an ASDE system
display may be identified as a false target by visual
observation. If the area containing a suspected false
target is not visible from the tower, an airport
operations vehicle or pilots of aircraft operating in the
area may be used to conduct the visual observation.
c. After positive verification that a target is false,
through pilot/vehicle operator position report or
controller visual observation, the track may be
temporarily dropped, which will remove the target
from the display and safety logic processing. A
notation shall be made to FAA Form 7230-4, Daily
Record of Facility Operation, when a track is
temporarily dropped.
3-6-3. INFORMATION USAGE
a. ASDE system derived information may be used
to:
1. Formulate clearances and control instructions
to aircraft and vehicles on the movement area.
REFERENCEFAAO
JO 7210.3, Para 3-7-2, Radar Use.
2. Position aircraft and vehicles using the
movement area.
3. Determine the exact location of aircraft and
vehicles, or spatial relationship to other aircraft/
vehicles on the movement area.
4. Monitor compliance with control instructions
by aircraft and vehicles on taxiways and runways.
5. Confirm pilot reported positions.
6. Provide directional taxi information, as
appropriate.
PHRASEOLOGYTURN
(left/right) ON THE TAXIWAY/RUNWAY YOU ARE
APPROACHING.
b. Do not provide specific navigational guidance
(exact headings to be followed) unless an emergency
exists or by mutual agreement with the pilot.
NOTEIt
remains the pilot's responsibility to navigate visually via
routes to the clearance limit specified by the controller and
to avoid other parked or taxiing aircraft, vehicles, or
persons in the movement area.
c. Do not allow an aircraft to begin departure roll
or cross the landing threshold whenever there is an
unidentified target/track displayed on the runway.
3-6-4. SAFETY LOGIC ALERT
RESPONSES
When the system generates an alert, the controller
shall immediately assess the situation visually and as
presented on the ASDE system display, then take
appropriate action as follows:
a. When an arrival aircraft (still airborne, prior to
the landing threshold) activates a warning alert, the
controller shall issue go-around instructions.
(Exception: Alerts involving known formation
flights, as they cross the landing threshold, may be
disregarded if all other factors are acceptable.)
JO 7110.65S 2/14/08
3-6-2 Airport Surface Detection Procedures
NOTEThe
intent of this paragraph is that an aircraft does not land
on the runway, on that approach, when the safety logic
system has generated a warning alert. A side-step
maneuver or circle to land on another runway satisfies this
requirement.
REFERENCEFAAO
JO 7110.65, Para 3-8-1, Sequence/Spacing Application.
FAAO JO 7110.65, Para 3-9-6, Same Runway Separation.
FAAO JO 7110.65, Para3-10-3, Same Runway Separation.
P/CG Term- Go Around.
b. When two arrival aircraft, or an arrival aircraft
and a departing aircraft activate an alert, the
controller will issue go-around instructions or take
appropriate action to ensure intersecting runway
separation is maintained.
REFERENCEFAAO
JO 7110.65, Para 3-9-8, Intersecting Runway Separation.
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