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Question 1

What does it mean when the ADR fault light illuminates steady on the
ADIRS CDU?

(a) A fault is detected in air data reference
(b) No present position entry after 10 MN
(c) Alignment has been computed

Answer 1

(a) A fault is detected in air data reference

Question 2

On the pedestal mounted switching panel the ATT HDG and AIR DATA selectors are at norm, meaning:

(a) ADIRU 1 supplies data to PFD 2, ND 1 + ATC 2
ADIRU 2 supplies data to PFD 1, ND 2, DDRM 1 + ATC 1
(b) ADIRU 1 supplies data to PFD 1, ND 1, DDRM1 + ATC 1
ADIRU 2 supplies data to PFD 2, ND 2 + ATC 2
(c) ADIRU 1 supplies data to PFD 1, ND 2 and DDRM 1 ADIRU 2 supplies data to PFD 2, ND 1

Answer 2

(b) ADIRU 1 supplies data to PFD 1, ND 1, DDRM1 + ATC 1
ADIRU 2 supplies data to PFD 2, ND 2 + ATC 2

Question 3

In case of failure of FMGEC 1 and 2:
(a) RMP 3 controls NAV receivers 1 and 2
(b) RMP 1 controls NAV receivers 2 only
(c) RMP 1 control NAV receivers 1, RMP 2 controls NAV receivers 2

Answer 3

(c) RMP 1 control NAV receivers 1, RMP 2 controls NAV receivers 2