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of an ATC clearance.
42.2.1.2Reads back any hold short of runway
instructions issued by ATC.
42.2.1.3Requests clarification or amendment, as
appropriate, any time a clearance is not fully
understood, or considered unacceptable from a safety
standpoint.
42.2.1.4Promptly complies with an air traffic
clearance upon receipt, except as necessary to cope
with an emergency. Advises ATC as soon as possible
and obtains an amended clearance if deviation is
necessary.
NOTE−
A clearance to land means that appropriate separation on
the landing runway will be ensured. A landing clearance
does not relieve the pilot from compliance with any
previously issued altitude crossing restriction.
42.2.2Controller
42.2.2.1Issues appropriate clearances for the
operation being, or to be, conducted in accordance
with established criteria.
42.2.2.2Assigns altitudes in IFR clearances that are
at or above the minimum IFR altitudes in Classes A,
B, C, D, and E airspace.
42.2.2.3Ensures acknowledgements by the pilot for
issued information, clearance, or instructions.
42.2.2.4Ensures that readbacks by the pilot of
altitude, heading, or other items are correct. If
incorrect, distorted, or incomplete, makes corrections
as appropriate.
42.3Contact Approach
42.3.1Pilot
42.3.1.1This approach must be requested by the
pilot and is made in lieu of a standard or special
instrument approach.
42.3.1.2By requesting the contact approach, the
pilot indicates that the flight is operating clear of
clouds, has at least 1 mile flight visibility, and can
reasonably expect to continue to the destination
airport in those conditions.
42.3.1.3Be aware that while conducting a contact
approach, the pilot assumes responsibility for
obstruction clearance.
42.3.1.4Advises ATC immediately if you are unable
to continue the contact approach or if you encounter
less than 1 mile flight visibility.
42.3.1.5Be aware that, if radar service is being
received, it may automatically terminate when the
pilot is told to contact the tower. Radar service
terminated" is used by ATC to inform a pilot that
he/she will no longer be provided any of the services
that could be received while in radar contact.
REFERENCE−
The Pilot/Controller Glossary is published in the Aeronautical
Information Manual (AIM) and FAA Orders 7110.10, Flight Services, and
7110.65, Air Traffic Control.
AIP ENR 1.1−61
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
42.3.2Controller
42.3.2.1Issues clearance for contact approach only
when requested by the pilot. Does not solicit the use
of this procedure.
42.3.2.2Before issuing clearance, ascertains that
reported ground visibility at destination airport is at
least 1 mile.
42.3.2.3Provides approved separation between
aircraft cleared for contact approach and other IFR or
special VFR aircraft. When using vertical separation,
does not assign a fixed altitude but clears the aircraft
at or below an altitude which is at least 1,000 feet
below any IFR traffic but not below minimum safe
altitudes prescribed in 14CFR Section 91.119.
42.3.2.4Issues alternative instructions if, in the
controller’s judgment, weather conditions may make
completion of the approach impractical.
42.4Instrument Approach
42.4.1Pilot
42.4.1.1Be aware that the controller issues
clearance for approach based only on known traffic.
42.4.1.2Follows the procedures as shown on the
instrument approach chart including all restrictive
notations, such as:
a)Procedure not authorized at night.
b)Approach not authorized when local area
altimeter not available.
c)Procedure not authorized when control tower
not in operation.
d)Procedure not authorized when glide slope not
used.
e)Straight−in minimums not authorized at night.
f)Radar required.
g)The circling minimums published on the
instrument approach chart provide adequate obstruction
clearance. The pilot should not descend below
the circling altitude until the aircraft is in a position
to make final descent for landing. Sound judgment
and knowledge of the pilot’s and the aircraft’s
capabilities are the criteria for a pilot to determine the
exact maneuver in each instance since airport design
and the aircraft position, altitude, and airspeed must
all be considered. (See ENR 1.5, paragraph 11.6,
Circling Minimums.)
42.4.1.3Upon receipt of an approach clearance
　
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