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DA(H) or MDA(H).
Minimum Descent Altitude (MDA(H))/Decision Altitude (DA(H))
When specifically authorized by the instrument procedure and regulatory
authority, approaches may be flown to the following minima:
• a published VNAV DA(H)
• a published MDA(H) used as a decision altitude
When either of the above minima are not specifically authorized, use the MDA(H)
specified for the instrument procedure.
When reaching the DA(H) or MDA(H), be prepared to disengage the autopilot,
disconnect the autothrottle and land or execute an immediate go-around.
Note: If using an MDA(H), initiating a missed approach approximately 50 feet
above MDA(H) may be necessary to avoid descending below the MDA(H)
during the missed approach, if required for the procedure or by the
regulatory authority.
October 31, 2004
767 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
5.44 FCT 767 (TM)
The pilot monitoring should expand the instrument scan to include outside visual
cues when approaching DA(H) or MDA(H). Do not continue the approach below
DA(H) or MDA(H) unless the airplane is in a position from which a normal
approach to the runway of intended landing can be made and suitable visual
reference can be maintained. Upon arrival at DA(H) or MDA(H) or any time
thereafter, if any of the above requirements are not met, immediately execute the
missed approach procedure.
When suitable visual reference is established, maintain the descent path to the
flare. Do not descend below the visual glide path. While VNAV PTH guidance
may still be used as a reference once the airplane is below DA(H) or MDA(H), the
primary means of approach guidance is visual.
Note: VNAV path guidance transitions to level flight once the missed approach
fix is passed.
Simulated Instrument Approach Using VNAV
To maintain proficiency, crews may practice instrument approach using VNAV
procedures while flying ILS approaches as follows:
• ensure the ILS is tuned and identified and the ILS raw data is monitored
throughout the approach
• track the localizer using LOC or LNAV as the roll mode
• use VNAV as the pitch mode to track the GP angle. The charted GP angle
normally coincides with the ILS glide slope angle
• disengage autopilot by the minimum altitude specified in the limitations
chapter of the Operations Manual.
Note: Limit the use of the above technique to VMC weather conditions.
In ambient temperature conditions warmer than ISA standard, the airplane may
remain slightly high relative to the ILS glide slope, and in temperatures colder
than ISA standard, the airplane may remain slightly lower than the ILS glide
slope. Discontinue use of this technique and manually track the localizer and glide
slope if localizer or glide slope deviations become unacceptable.
October 31, 2004
767 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
FCT 767 (TM) 5.45
Instrument Approach Using V/S
Enroute to fix
• LNAV or other roll mode
• VNAV or other pitch mode
Approaching MDA(H)
• Set missed approach
altitude in MCP
Approaching intercept heading
• Flaps 5
• Flaps 5
On RADAR vectors
• HDG SEL
• Pitch mode (as needed)
Intercept heading
• Arm LNAV or select
other roll mode
Descend to MDA(H)
• Set V/S
• Do the Landing checklist
• Flaps 1
FAF
Inbound (Approximately 2 NM)
• Gear down
• Flaps 20
(landing flaps 1 engine)
• Arm speedbrake
• Set MDA(H)
• Landing flaps
(2 engine)
At MDA(H)
• Intercept landing profile
and disengage autopilot
and disconnect autothrottle
October 31, 2004
767 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
5.46 FCT 767 (TM)
Approach Preparations for using V/S
Select the approach procedure from the ARRIVALS page of the FMC. Tune and
identify appropriate navaids. If additional waypoint references are desired, use the
FIX page. To enable proper LNAV waypoint sequencing, select a straight-in
intercept course to the FAF when being radar vectored to final approach.
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
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767机组训练手册Flight Crew Training Manual (FCTM)767(80)
