EBT Module 5

Question 1

Which 6 Oceanic Control Areas are there over the North Atlantic

Answer 1

Bodo, Reykjavik, Gander, Shanwick, New York, Santa Maria.

Question 2

Between which Flight Levels is the NAT HLA depicted?

Answer 2

Between FL285 and FL420.

Question 3

How does GPS SPOOFING OCCUR?

Answer 3

It requires a spoofing station which will send a false location transmission to GNSS receivers in the affected area.

Question 4

How does GPS JAMMING occur?

Answer 4

By transmitting a strong signal which will drown out the transmissions from GNSS satellites.

Question 5

What can be the other effects on the 737 MAX after GPS SPOOFING or JAMMING?

Answer 5

• Erroneous SPEEDBRAKE warnings from the EGPWS.
• RUNWAY INOP light may illuminated.

Question 6

After GPS JAMMING or SPOOFING, what will happen with the ADS-B system?

Answer 6

We can lose the ADS-B capability or erroneous ADS-B position data. However, transponder Mode C remains operational.

Question 7

What are the typical effects with GPS JAMMING or SPOOFING?

Answer 7

• GNSS position data lost
• Increasing ANP, and then ‘UNABLE REQD NAV PERF - RNP)
• False GPWS Look-Ahead Terrain Warnings and PULL UP messages on the PFD.
• Terrain display on ND and VSD may be inaccurate.
• Inability to log on to CPDLC due to faulty timestamp. In case of SPOOFING, we get the message “ATC COMM TERMINATED”
• Loss of time source (spamming or spoofing)
• Wrong time and or data info (only caused by spoofing)
• Map shift.
  EFB Features, position on jeppesen taxi chart.)

Question 8

Can we do RNP approaches in areas with known GNSS interferences?

Answer 8

No

Question 9

Can we continue a RNP and RNP-AR approach when we experiencing GNSS interference after commencing an approach?

Answer 9

An RNP approach can be continued (as long as the ANP does not exceed the RNP), an RNP-AR approach shall in any case be aborted unless you are visual with the terrain.

Question 10

How will a military aircraft make clear that you have been intercepted?

Answer 10

• It will fly in front of you, slightly above and normally on your left side.
• It will rock the aircraft and flash navigation lights at IRREGULAR intervals.

Question 11

How you will make it clear to the intercepting aircraft that you understood that you have been intercepted?

Answer 11

Rocking aircraft, flashing navigation lights as well at IRREGULAR intervals.

Question 12

What will the intercepting aircraft do when you responded that you understand that you have been intercepted?

Answer 12

It will make a slow level turn, normally to the left onto the desired heading.

Question 13

What will the intercepting aircraft do to tell you “You may proceed” after you have been intercepted?

Answer 13

It will make an abrupt climbing turn of 90 degrees or more.

Question 14

What will you do to make it clear to the intercepting aircraft that you understood what he meant?

Answer 14

Rocking of the aircraft.

Question 15

How will an intercepting aircraft make it clear to you that he wants you to “Land at this airport”?

Answer 15

It will lower his landing gear, show steady landing lights and overfly runway in use.

Question 16

What will you do when an intercepting aircraft showed you the airport where he wants you to land?

Answer 16

Lower the landing gear as well, steady landing lights and then land.

Question 17

How will you make it clear to the intercepting aircraft that the airport he choose for you to land is not adequate?

Answer 17

When flying over the runway, raising your landing gear between 1000 ft and 2000 ft and flashing landing lights. Then continue circling over the runway.

Question 18

What do you want to tell the intercepting aircraft by switching on and off all available light in a REGULAR way?

Answer 18

Cannot comply.

Question 19

What do you want to tell the intercepting aircraft by switching on and off all available light in a IRREGULAR way?

Answer 19

That you are in distress.

Question 20

When should we select GPS update OFF in the FMC?

Answer 20

When EXPECTING GNSS SPOOFING or EXPERIENCING GNSS JAMMING.

Question 21

When should we select or verify DME update ON in the NAV OPTIONS page?

Answer 21

When experiencing OR operating (so not yet experiencing) in areas of known GNSS interference.

Question 22

When using the POS button on the EFIS panel, which symbol is the GPS position and which the ADIRU position?

Answer 22

The “Darth Vader” symbol is the GPS position and the “Star” is the ADIRU position.