15: Warning Systems

Question 1

Windshear Warning (Airplane in Windshear)
When does detection begin and when is it enabled?

Answer 1

*Detection Begins at rotation
*Enabled below 1500 feet RA

Question 2

WINDSHEAR AHEAD- enabled when?

Answer 2

During T/O below 1200 feet RA

Question 3

GO AROUND, WINDSHEAR AHEAD- when is it enabled and what does it indicate?

Answer 3

Enabled during App below 1200 feet RA and indicates windshear within 1.5 miles ahead

Question 4

MONITOR RADAR DISPLAY- when is it enabled and what does it indicate?

Answer 4

Enabled during T/O and App below 1200 feet and indicates windshear within 3 miles ahead

Question 5

WX Radar begins scanning when?

Answer 5

• thrust levers set for T/O, even if engine is off or IRS not aligned
• in flight below 2300 feet RA

Question 6

New predictive windshear caution alerts are inhibited when?

Answer 6

Between 80 kt and 400 feet RA

Question 7

New predictive warning alerts are inhibited when?

Answer 7

Between 100 kt and 50 feet RA

Question 8

EGPWS: Terrain display colours and altitudes

Answer 8

Green: -2000’ to +250’
Yellow: -500 to +2000’
Red: +2000’ or above

Question 9

Smart 500 Radio Altitude Callout

Answer 9

MAX:
# an app is not selected in the FMC
# Glideslope Cancel is selected
# excessive ILS or FMC flightpath and glidepath deviation

NG:
# an app other than ILS is used
# Glideslope Cancel is selected
# excessive ILS flightpath and glidepath deviation

Dependent on the lack of G/S or G/P (MAX)
Dependent on the lack of G/S (NG)

Question 10

TCAS Inhibits:
1) Increase Descend RA
2) Descend RA
3) RA
4) What is displayed on the ND below 1000`
5) TCAS Voice

Answer 10

1) Approximately 1500ft RA
2) Approximately 1100ft RA
3) Approximately 1000ft RA
4) TA ONLY
5) Approximately 500ft RA

Question 11

MAINT/PSEU lights. Diff between MAX and NG

Answer 11

NG: PSEU inhibited from thrust lever set for T/O until 30s
after landing.
an overwing exit​ flight lock fails to​ disengage when
commanded.

MAX: Inhibited from first engine start until 30s after landing

Question 12

On-ground overrun warning, when active?

Answer 12

3 s after touchdown until below 20kt or within 1000 feet of the end of the runway

Question 13

In-air overrun warning, when active?

Answer 13

from 500 feet above TDZE until touchdown

Question 14

Takeoff config

Answer 14

activates on the ground as the throttles are advanced​ if the airplane is not ​configured correctly for takeoff

•​ trailing edge flaps are not in​ the flaps 1 through 25 takeoff range, or​
•​ trailing edge flaps are in a skew​ or asymmetry condition, or have ​uncommanded motion, or​
•​ leading edge devices are not configured for takeoff or​ have ​uncommanded motion, or​
•​ speed brake lever is not​ in the DOWN position, or​
•​ ground​ spoiler control module valve is open providing pressurized ​hydraulic fluid to​ the ground spoiler PCUs, or
​•​ parking brake is set,
or​1B012 - 1B074, 1J926 - 1J932
​•​ overwing door not secure, or​
•​ stabilizer trim not set in the takeoff range

Question 15

Windshear Caution, how does it look or sound like? When is a new one inhibited?

Answer 15

Aural “MONITOR RADAR DISPLAY”
Amber Windshear on ND

Between 80 kt and 400 feet RA

Question 16

Predictive windshear warning during takeoff roll, how does it look or sound like? When is a new one inhibited?

Answer 16

Aural “WINDSHEAR ​AHEAD, WINDSHEAR AHEAD”
Red WINDSHEAR on ND

Between 100 kt and 50 feet RA

Question 17

Predictive windshear warning during approach, how does it look or sound like?

Answer 17

Aural “GO–AROUND, ​WINDSHEAR AHEAD”
Red WINDSHEAR on ND

Question 18

Windshear Warning (Airplane in Windshear), how does it look or sound like?

Answer 18

two–tone siren followed by ​“WINDSHEAR, WINDSHEAR, WINDSHEAR”) also WINDSHEAR on PFD

or

unacceptable flight path deviations.​
Unacceptable flight path deviations​ are recognized as ​uncontrolled changes from​ normal steady state flight conditions ​below 1000 feet​ AGL, in excess of any of the following:
* 15 knots​ indicated​ airspeed
* 500 fpm vertical speed
* 5° pitch attitude
* 1​ dot displacement​ from the glideslope
* unusual​ thrust lever position for a significant period of time

Question 19

IAN Autopilot Alert

Answer 19

Both visual and aural alerts are provided​ if the autopilot is engaged below 100 feet ​RA​ with either FAC or G/P​ engaged. AUTOPILOT,​ AUTOPILOT​ is announced ​over the cabin speaker, and an amber AUTOPILOT​ flashes over the attitude ​display

Question 20

GPWS Caution- what is the maneuver?

Answer 20

Correct the flight path, airplane​ configuration, or airspeed