Weather Radar

Question 1

Scenario
You’re on arrival into DAL for the RNAV 13R approach. You are number 2 for the approach
at 3,000 ft. The airplane 5 miles in front of you goes around for windshear.

Answer 1

Scenario
You’re on arrival into DAL for the RNAV 13R approach. You are number 2 for the approach
at 3,000 ft. The airplane 5 miles in front of you goes around for windshear.

Question 2

Q.8.1 Will your weather radar give you a PWS alert
for that windshear?

Answer 2

No. Windshear conditions are detected below 1,200
ft along and ahead of the aircraft flight path.

Reference: AOM 15.5.1

Question 3

Q.8.2 What are your priorities? How long should you
delay?

Answer 3

Windshear conditions often dissipate within 10 to 20
minutes.

Reference: AOM 15.5.1

Question 4

Scenario
You’re now departing south out of DAL to HOU on the CURLO6 with convective activity in the area.

Answer 4

Scenario
You’re now departing south out of DAL to HOU on the CURLO6 with convective activity in the area.

Question 5

Q.8.3 A cell is drifting across your departure path. At
70 kts you hear “MONITOR RADAR DISPLAY.”
What would you do?

Answer 5

Continue the takeoff. Be prepared to execute the
Windshear Escape Maneuver once airborne.

Reference: AOM 5.18.1

Question 6

Q.8.4 Are there different detection parameters
between PWS cautions and PWS warnings?

Answer 6

Yes. Refer to the reference below for a description.

Reference: FRM B737-700/-800 15.2.7.2, FRM B737MAX 15.2.6.4

Question 7

Scenario
It’s the next day and you are enroute to MCO. There are isolated storms building
around MCO and as you turn on your weather radar, it fails.

Answer 7

Scenario
It’s the next day and you are enroute to MCO. There are isolated storms building
around MCO and as you turn on your weather radar, it fails.

Question 8

Q.8.5 What are your options?

Answer 8

Your options include:

• Call Dispatch for real time weather avoidance
information
• Request the latest thunderstorm information
from ATC
• Call the nearest FSS
• Review the latest available weather reports,
radar maps, and SIGMETs
• Consult any other information sources
regarding thunderstorm conditions

Reference: FOM 15.2.5

Question 9

General Knowledge

Answer 9

General Knowledge

Question 10

Q.8.6 What is the maximum distance that turbulence
can be depicted on the ND for the RDR-4B and
RDR-4000?

Answer 10

Regardless of range selected:
▪ RDR-4B: 40 NM
▪ RDR-4000: 60 NM
Turbulence is displayed in magenta.

Reference: FRM GIP 5.2.5, 5.3.5, 6.3.4

Question 11

Q.8.7 What is the significance of weather displayed
with black stripes in the RDR-4000?

Answer 11

Black stripes designate “secondary” weather based
on the current flight path.

Reference: FRM GIP 6.3.3

Question 12

Q.8.8 You are cruising at FL 260 and your radar
indicates a thunderstorm in your flight path. What is
the recommended distance to avoid radar echoes at
this altitude?

Answer 12

When flying above 23,000 ft avoid all echoes by 20 NM.
If possible, circumnavigate all echoes by flying on the
upwind side.

Reference: FOM 15.2.4

Question 13

Q.8.9 Radar shadows in the RDR-4000 are
identified with magenta arcs via the REACT
function.

How would you identify a radar shadow
with an RDR-4B?

Answer 13

They are identified by adjusting the antenna tilt down
to a position showing ground return on the outer third
of the indicator. Radar shadows are the black areas
at the outer extremity of the displayed range.

Reference: FRM GIP 6.3.6, FOM 15.2.3