Another important piece of a thorough approach
briefing is the discussion of the airport and runway
environment. A detailed examination of the runway
length (this must include the Airport/Facility
Directory for the landing distance available), the
intended turnoff taxiway, and the route of taxi to the
parking area, are all important briefing items. In
addition, runway conditions should be discussed.
The effect on the aircraft’s performance must be
considered if the runway is wet or contaminated.
NACO approach charts include a runway sketch on each
approach chart to make important airport information
easily accessible to pilots. In addition, at airports that
have complex runway/taxiway configurations, a separate
full-page airport diagram will be published.
The airport diagram also includes the latitude/longitude
information required for initial programming of FMS
equipment. The included latitude/longitude grid shows
the specific location of each parking area on the airport
surface for use in initializing FMSs. Figure 5-19 shows
the airport sketch and diagram for Chicago-O’Hare
International Airport.
Pilots making approaches to airports that have this type
of complex runway and taxiway configuration must
ensure that they are familiar with the airport diagram
prior to initiating an instrument approach. A combination
of poor weather, high traffic volume, and high
ground controller workload makes the pilot’s job on the
ground every bit as critical as the one just performed in
the air.
INSTRUMENT APPROACH PROCEDURE
BRIEFING
A thorough instrument approach briefing greatly
increases the likelihood of a successful instrument
approach. Most Part 121, 125, and 135 operators designate
specific items to be included in an IAP briefing, as
well as the order in which those items will be briefed.
Before an IAP briefing can begin, flight crews must
decide which procedure is most likely to be flown from
the information that is available to them. Most often,
when the flight is being conducted into an airport that
has ATIS information, the ATIS will provide the pilots
with the approaches that are in use. If more than one
approach is in use, the flight crew may have to make an
educated guess as to which approach will be issued to
them based on the weather, direction of their arrival
into the area, any published airport NOTAMs, and previous
experience at the specific airport. If the crew is in
contact with the approach control facility, they can
query ATC as to which approach is to be expected from
the controller. Pilots may request specific approaches
to meet the individual needs of their equipment or
regulatory restrictions at any time and ATC will, in
most cases, be able to accommodate those requests,
providing that workload and traffic permit.
If the flight is operating into an airport without a control
tower, the flight crew will occasionally be given the
choice of any available instrument approach at the field.
In these cases, the flight crew must choose an appropriate
approach based on the expected weather, aircraft
performance, direction of arrival, airport NOTAMs,
and previous experience at the airport.
NAVIGATION AND COMMUNICATION RADIOS
Once the anticipated approach and runway have been
selected, each crewmember sets up their “side” of the
cockpit. The pilots use information gathered from
ATIS, dispatch (if available), ATC, the specific
approach chart for the approach selected, and any other
Figure 5-19. Airport Sketch and Diagram for Chicago-O’Hare International.
sources that are available. Company regulations dictate
how certain things are set up and others are left up to
pilot technique. In general, the techniques used at a
specific company are similar. This section addresses
two-pilot operations. During single-pilot IFR flights,
the same items must be set up and the pilot should still
do an approach briefing to verify that everything is set
up correctly.
The number of items that can be set up ahead of
time depends on the level of automation of the aircraft
and the avionics available. In a conventional
cockpit, the only things that can be set up, in
general, are the airspeed bugs (based on performance
calculations), altimeter bug (to DA, DH, or MDA),
go around thrust/power setting, the radio altimeter
bug (if installed and needed for the approach), and
the navigation/communication radios (if a standby
frequency selector is available). The standby side
of the PF navigation radio should be set to the
primary NAVAID for the approach and the PM
navigation radio standby selector should be set to
any other NAVAIDs that are required or available,
and as dictated by company procedures, to add to
the overall situational awareness of the crew. The
automatic direction finder (ADF) should also be
tuned to an appropriate frequency as required by
the approach, or as selected by the crew.