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Sec. 3 Page 204 737
Rev. 11/15/02 #41 Continental Flight Manual
During the missed approach procedure, at 1000’ AGL when “level change”
is selected the “ last” autopilot engaged will disconnect. This will be
autopilot “A” under normal operations, and if the Captain flies the missed
approach, autopilot “B” will be the master. All autopilot input will be
received from the First Officers navigation receiver and Flight Director.
DUAL CHANNEL (AUTOPILOT) APPROACH AND GO-AROUND
WARNINGS
WARNING WHEN CAUSE PILOT RESPONSE
VMC IMC
Below 800’
RA during
approach
Stabilizer out of
trim
Disengage
A/P and
execute
manual
landing or goaround
Disengage
A/P and
immediately
execute
manual goaround
Steady red
A/P
disengage
warning light
During GA Elevator position
not suitable for
single channel
operation
Disengage A/P and execute
manual level off OR select
higher go-around altitude
No FLARE
arm
annunciation
500’ above
field elevation
during
approach
Pitch and roll
monitors may not
be enabled, or
only first A/P
channel up is
engaged
Disengage
A/P and
execute
manual
landing
Disengage
A/P and
immediately
execute
manual goaround
Flashing red
A/P
disengage
warning light
and aural
warning
Below 800’
RA during
approach
A/P
disengagement
Disengage
A/P and
execute
manual
landing or goaround
Disengage
A/P and
immediately
execute
manual goaround
Flashing red
A/T
disengage
warning light
Any time A/T
disengagement
Disengage
A/P and
execute
manual
landing or goaround
Disengage
A/P and
immediately
execute
manual goaround
737 Sec. 3 Page 205
Flight Manual Continental Rev. 11/15/02 #41
Category I / II / II (AUTOLAND) / BCD IIIA Low Visibility
Approach Procedures
Category I / Category II / II (AUTOLAND) / IIIA ILS low visibility approaches
(RVR at or below 2400) will be autopilot coupled, monitored approaches with
the First Officer controlling the autopilot. The Captain will autoland or
manually land the aircraft if the required visual cues are attained at or before
DA/DH.
CATEGORY I II IIIA
RVR ³ 1800 < 1800
³ 1200*
*( < 1000 if
published as the
approach
minima)
< 1200
³ 600
DA/DH DA ³ 200 DH < 200
DH ³ 100
DH < 100
Note: CAT II approaches with the published minima of RVR 1000 require
an AUTOLAND approach. An AUTOLAND approach is required
anytime TDZ RVR is less than 1200.
Basic Operating Rules
· Aircraft equipment requirements must be met. Refer to The Monitored
Approach Briefing Guide, this section.
· No Category II / II (AUTOLAND) / IIIA ILS approaches will be made
when winds (including gusts) exceed:
Headwind: 20 knots
Crosswind: 15 knots
Tailwind: 10 knots
If LLWAS or windshear with airspeed gain or loss greater than 10 knots is
reported, CAT II and CAT IIIA approaches will not be flown.
Sec. 3 Page 206 737
Rev. 11/15/02 #41 Continental Flight Manual
Localizer Tracking
When performing an actual CAT II / IIIA ILS approach and landing, flight
crews should closely monitor autoflight systems and ILS raw data during the
approach to ensure proper localizer tracking. The following operating
practices, when conditions permit, will significantly improve localizer tracking
and provide touchdown closer to runway centerline:
· Prior to approach, check rudder and aileron trim before engaging Autopilot.
· Maintain symmetrical thrust on both engines throughout the approach.
· When air traffic control will permit, intercept the localizer at an angle not
greater than 45 degrees.
· Capture the localizer not less than 8 miles from runway threshold.
· Capture the localizer at a speed no greater than VM Flaps 5.
· Capture glideslope at or above 1,500 feet AFE.
· Aircraft should be stabilized on localizer and glideslope before passing
outer marker or as soon as possible after passing final approach fix.
· Monitor ILS raw data throughout the approach.
Distortion of Localizer / Glideslope Beam
If distortion or oscillation of the localizer / glideslope beam occurs, the
　
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