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The system uses the same altitude zones to suppress this advisory
that are used for the routine Approaching Runway In-Air Advisory.
Note that this advisory does not take into account prevailing conditions
such as aircraft weight, wind, runway condition & slope,
air temperature and altitude of airport. If the operator does not
specify the nominal runway length, the advisory is defaulted to
off, unless the operator has chosen to always advise the runway
length available for landing.
RAAS does not account for operational data such as NOTAMs that
refer to areas of runway that are not available (e.g. due construction,
snow removal, etc). Crews should be cognizant of any
NOTAMs and other published restrictions in effect.
060-4241-000 • Rev. E - December 2003
MK V & MK VII EGPWS Pilot Guide 83
Approach to
Runway
Continued
The Routine Approaching Runway In-Air Advisory message is appended
with available runway length information, for example
“Approaching three-four-right, three-thousand-available”. The
"available" element of the message refers to the runway distance
in the EGPWS database to the nearest 100-ft (or 100 m for the
metric option). Note that the unit (feet or metres) is not annunciated.
The unit of length used by RAAS can be confirmed by
performing an EGPWS self-test (See “Operational Availability”
section). This advisory occurs once for each runway alignment
based on the conditions specified above.
"Approaching Three-Four Right,
Three-Thousand Available"
34L 16R
A9 A6
A7
A5 A4 A3 A2 A1
A A
B
11
29
34R 16L
G1 G2 G3 G4 G5 G6
G
D
D1
D2
D3
D4
A8
Example in feet
Example of Approaching Short Runway - In-Air Advisory
(in Feet)
Distance Remaining - Landing and Roll-Out Advisory
The purpose of the Distance Remaining Advisory is to enhance
crew awareness of aircraft position relative to the runway end.
The Distance Remaining Advisory is provided when the following
conditions are met:
• aircraft is on, or over, the last-half of the runway; and
• aircraft groundspeed is above 40 knots.
Landing
Roll-Out
060-4241-000 • Rev. E - December 2003
84 MK V & MK VII EGPWS Pilot Guide
Landing
Roll-Out
Continued
If the crew decides to go-around after the Distance Remaining
Advisory is triggered, the call-outs continue to be annunciated at
the appropriate distances along the runway. The advisories are
inhibited once the aircraft attains a Radio Altitude of 100 feet or a
climb rate of 450 feet-per-minute.
The advisories are generated at whole thousand-foot intervals if
RAAS is configured in “feet”, except that the last possible advisory
occurs at 500 feet. For example, the following advisories would
be generated during a landing on a 9000-foot runway:
• “Four-thousand remaining”;
• “Three-thousand remaining”;
• “Two-thousand remaining”;
• “One-thousand remaining”; and
• “Five-hundred remaining”.
Example of Landing and Roll-Out Advisory in Feet
34L 16R
A9 A6
A7
A5 A4 A3 A2 A1
A A
B
11
29
34R 16L
G5 G4 G3 G2 G1
G6
G
D
D1
D2
D3
D4
A8
“4000 Remaining”
“3000 Remaining”
“2000 Remaining”
“1000 Remaining”
“500 Remaining”
Example in feet
060-4241-000 • Rev. E - December 2003
MK V & MK VII EGPWS Pilot Guide 85
Landing
Roll-Out
Continued
The metric distance advisories are generated at 300-metre intervals,
except that the last possible advisory occurs at 100 metres.
For example, the following advisories would be generated during
a landing on a 3000-metre runway:
• “One-thousand-two-hundred remaining”;
• “Nine-hundred remaining”;
• “Six-hundred remaining”;
• “Three-hundred remaining”; and
• “One-hundred remaining”.
Note that message content is identical to that for the Rejected
Take-Off Distance Remaining Advisory.
Runway End Advisory
The purpose of the Runway End Advisory is to improve flight
crew awareness of the position of the aircraft relative to the runway
end during low visibility conditions. Note that the advisory is
not intended to prevent a landing overrun.
The Runway End Advisory is provided to the flight crew when:
　
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