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Verify/enter the appropriate RNP and set the MDA(H) using the baro minimums
selector. If required to use MDA(H) for the approach minimum altitude, the
barometric minimums selector should be set at MDA + 50 feet to ensure that if a
missed approach is initiated, descent below the MDA(H) does not occur during
the missed approach.
Final Approach using V/S or FPA
Approaching intercept heading, select flaps 5 and ensure LNAV or other
appropriate roll mode is armed or engaged. Approaching the FAF (approximately
2 NM), select gear down and flaps 20 and adjust speed. Set the MCP altitude
window to the first intermediate altitude constraint, or MDA(H) if no altitude
constraint exists. If the altitude constraint is not at an even 100 foot increment, set
the MCP altitude to the nearest 100 ft. increment below the altitude constraint. The
MDA(H) may be set within 10 feet as long as the minimums are set using the
minimums selector.
When initiating descent to MDA(H), select landing flaps, slow to final approach
speed and do the Landing checklist. If the charted FAF is too close to the runway
to permit a stabilized approach, consider establishing final approach pitch mode
and configuring for approach and landing earlier than specified in the FCOM
procedure.
At or after the FAF, select V/S or FPA mode and descend at appropriate vertical
speed, or flight path angle, to arrive at the MDA(H) at a distance from the runway
(VDP) to allow a normal landing profile. If V/S mode is used, initial selection of
an appropriate V/S should be made considering the recommended vertical speeds
that are published on the approach chart, if available. These recommended vertical
speeds vary with the airplane's ground speed on final approach. If no
recommended vertical speeds are available, set approximately -700 to -800 fpm.
If FPA mode is used, initial selection of an appropriate FPA should be made
considering the final approach descent angle or glide path angle published on the
approach chart, if available. If no descent angle or glide path angle is available
from the approach chart, set -3.0° initially. FPA mode allows the pilot to select a
flight path (e.g -3.0°.) which automatically compensates for headwind or tailwind
component. This may permit reduced workload.
October 31, 2006
777/787 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 5.53
When stabilized in a descent on final approach, use one of the following
techniques to make small incremental changes to the resulting vertical speed or
FPA to achieve a constant angle descent to minimums. There should be no level
flight segment at minimums.
Several techniques may be used to achieve a constant angle path that arrives at
MDA(H) at or near the VDP:
• the most accurate technique is to monitor the VNAV path deviation
indication on the map display and adjust descent rate or FPA to maintain
the airplane on the appropriate path. This technique requires the path to be
defined appropriately on the LEGS page and that the header GPx.xx is
displayed for the missed approach point or there is a RWxx or MXxx, or
named waypoint on the legs page with an altitude constraint which
corresponds to approximately 50 ft. threshold crossing height. When this
method is used, crews must ensure compliance with each minimum
altitude constraint on the final approach segment (step down fixes)
• select a descent rate or FPA that places the altitude range arc at or near the
stepdown fix or visual descent point (VDP). This technique requires the
stepdown fix or MDA(H) to be set in the MCP and may be difficult to use
in turbulent conditions. See the Visual Descent Point section for more
details on determining the VDP
• using 300 feet per mile for a 3° path, determine the desired HAA which
corresponds to the distance in NM from the runway end. The PM can then
call out recommended altitudes as the distance to the runway changes
(Example: 900 feet - 3 NM, 600 feet - 2NM, etc.). The descent rate or
FPA should be adjusted in small increments for significant deviations
from the nominal path.
Be prepared to land or go-around from the MDA(H) at the VDP. Note that a
normal landing cannot be completed from the published missed approach point on
many instrument approaches.
Approximately 300 feet above the MDA(H), select the missed approach altitude.
Leaving the MDA(H), disengage the autopilot. Turn both F/Ds OFF, then place
the PM’s F/D ON. This eliminates unwanted commands for the PF and allows
continued F/D guidance for the PM in the event of a go-around when pitch or roll
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787机组训练手册Flight Crew Training Manual 787(86)
