Avionics

Question 1

How will you recognise a dual IAC failure?

Answer 1

Loss of HUD, UFCP and MFDs in both cockpits.

Trims remain alive and Bat + Gen switches are on. Means it is not a Bat + Gen failure.

Question 2

How will you recognise a single IAC failure?

Answer 2

May get IAC 1 / IAC 2 FAIL cautions

MFDs in one or both cockpits may be lost

MFDs may be erratic

IAC synchronisation errors may be present

HUD and UFCP may or may not be operating properly

Question 3

If you experience an IAC failure whilst IMC what should you do before anything else?

Answer 3

Transfer immediately to the BFI

Question 4

Are there any bold face for the IAC failure drill?

Answer 4

No

Question 5

If you experience an IAC 1/2 failure what must you NOT do with the MFD selector?

Answer 5

Select repeat in the cockpit with working MFDs. May result in the loss of MFDs in both cockpits.

Question 6

What should you NOT do if an IAC failure is due to suspected synchronisation problems?

Answer 6

Do not select REPEAT in either cockpit

Question 7

Approximately what TQ do you get by standing the throttle in the vertical position?

Answer 7

35% TQ - Useful if left flying on just the BFI

Question 8

At approximately what TQ will the red undercarriage warning and undercarriage handle lights illuminate.

Answer 8

15-20% TQ

A good gauge to approximate TQ setting to allow a reduction of speed for checks in IMC

Question 9

How will IRS failures be recognised?

Answer 9

IRS FAIL caution

Attitude failure = Loss of attitude display on the HUD and MFD

Heading failure = Loss of heading display on the HUD and MFD + loss of TSD

Reference the BFI as required and check CBs

Question 10

What is the landing urgency for IRS failures?

Answer 10

Land ASAP if the problem persists

Question 11

What is the landing urgency for IAC emergencies?

Answer 11

Land as soon as practicable if the problem persists

Question 12

How will you recognise UFCP failure?

Answer 12

UFCP 1 FAIL and/or UFCP 2 FAIL cautions

Question 13

What functions will you lose in the cockpit with a failed UFCP?

Answer 13

FMS execute
System Mag/True heading toggle
System GS/CAS/TAS HUD speed toggle
Radio tuning with the UFCP

Question 14

What should you do if you have IAC synchronisation errors on the ground?

Answer 14

Can try to force the IACs to sync through the initialisation pages in INITREF.

If this doesn’t sort it, the most likely cause is the radio load is different in the IACs (IACs can sometimes drop the load from memory). Try reloading the radio data from the DTD to both IACs, then try to SYNC again.

FMS STS/BIT page can help aid diagnosis.