737 Flight Crew Operations Manual
Warning Systems -
System Description
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15.20.16 D6-27370-866-EGP
Callout, Alerts and ND Messages During Approach, Landing, Go-Around,
and RTO on RAAS Airports
Voice Callouts, Alerts
and ND Messages
Description
APPROACHING
(RUNWAY
IDENTIFIER)
Sounds once each time the airplane:
• approaches within three nautical miles of a
runway threshold, and
• is within 20 degrees of the runway heading,
and
• is within approximately 200 feet plus one
runway width of the runway extended center
line, and
• is between 750 feet and 300 feet field
elevation.
The callout is inhibited between 550 and 450 feet above
field elevation. When the airplane descends below 450
feet, the callout will be annunciated.
APPROACHING
RUNWAYS
Sounds once each time the description is met while
approaching two runways.
(FEET)
REMAINING
Sounds during RTO when the airplane is on the ground:
• is on a defined minimum length from the
runway end
• with ground speed greater than 40 knots, and
• after ground speed decreases by seven knots
from the maximum ground speed achieved
Sounds once each time the airplane is:
• over a defined minimum length from the
runway end, and:
• during rollout with airspeed less than 40
knots, or
• during go-around when less than 100 feet
above the ground
During go-around after the callout REMAINING
sounds, the callouts continue to sound until the airplane
is:
• higher than 100 feet above the runway, or
• rate of climb is greater than 450 feet per
minute
September 25, 2014
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