AIM
4/3/14
5−5−4
Pilot/Controller Roles and Responsibilities
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8. See and Avoid
a. Pilot.
When meteorological conditions permit,
regardless of type of flight plan or whether or not
under control of a radar facility, the pilot is
responsible to see and avoid other traffic, terrain, or
obstacles.
b. Controller.
1.
Provides radar traffic information to radar
identified aircraft operating outside positive control
airspace on a workload permitting basis.
2.
Issues safety alerts to aircraft under their
control if aware the aircraft is at an altitude believed
to place the aircraft in unsafe proximity to terrain,
obstructions, or other aircraft.
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9. Speed Adjustments
a. Pilot.
1.
Advises ATC any time cruising airspeed
varies plus or minus 5 percent or 10 knots, whichever
is greater, from that given in the flight plan.
2.
Complies with speed adjustments from ATC
unless:
(a)
The minimum or maximum safe airspeed
for any particular operation is greater or less than the
requested airspeed. In such cases, advises ATC.
NOTE
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It is the pilot’s responsibility and prerogative to refuse
speed adjustments considered excessive or contrary to the
aircraft’s operating specifications.
(b)
Operating at or above 10,000 feet MSL on
an ATC assigned SPEED ADJUSTMENT of more
than 250 knots IAS and subsequent clearance is
received for descent below 10,000 feet MSL. In such
cases, pilots are expected to comply with 14 CFR
Section 91.117(a).
3.
When complying with speed adjustment
assignments, maintains an indicated airspeed within
plus or minus 10 knots or 0.02 Mach number of the
specified speed.
b. Controller.
1.
Assigns speed adjustments to aircraft when
necessary but not as a substitute for good vectoring
technique.
2.
Adheres to the restrictions published in the
FAAO JO 7110.65, Air Traffic Control, as to when
speed adjustment procedures may be applied.
3.
Avoids speed adjustments requiring alternate
decreases and increases.
4.
Assigns speed adjustments to a specified IAS
(KNOTS)/Mach number or to increase or decrease
speed using increments of 10 knots or multiples
thereof.
5.
Terminates ATC-assigned speed adjustments
when no longer required by issuing further
instructions to pilots in the following manner:
(a)
Advises pilots to “resume normal speed”
when the aircraft is on a heading, random routing,
charted procedure, or route without published speed
restrictions.
(b)
Instructs pilots to “comply with speed
restrictions” when the aircraft is joining or resuming
a charted procedure or route with published speed
restrictions.
CAUTION
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The phraseology “comply with restrictions” requires
compliance with all altitude and/or speed restrictions
depicted on the procedure.
(c)
Instructs pilots to “resume published
speed” when aircraft are cleared via a charted
instrument flight procedure that contains published
speed restrictions.
(d)
Advises aircraft to “delete speed restric-
tions” when ATC assigned or published speed
restrictions on a charted procedure are no longer
required.
(e)
Clears pilots for approach without restat-
ing previously issued speed adjustments.
REFERENCE
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PCG, Resume Normal Speed, Resume Published Speed
6.
Gives due consideration to aircraft capabili-
ties to reduce speed while descending.
7.
Does not assign speed adjustments to aircraft
at or above FL 390 without pilot consent.
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10. Traffic Advisories (Traffic
Information)
a. Pilot.
1.
Acknowledges receipt of traffic advisories.