Navigation System Flashcards
1
Q
Describe the Inertial Reference System (IRS)
A
computes airplane position, ground speed, and attitude by interfacing with the MAU, GPS, and ADC
2
Q
How long is IRS alignment on the ground
A
up to 17 minutes with initial position input into MDCU or provided by GPS
3
Q
IRS EXCESSIVE MOTION caution
A
excessive motion of airplane is disturbing associated IRS aligning sequence
4
Q
IRS 1 or 2 FAIL caution
A
associated IRS has failed
5
Q
IRS ALIGNING advisory
A
associated IRS is in aligning sequence
6
Q
IRS 1 or 2 NAV MODE FAIL advisory
A
associated IRS is no longer providing navigation information
7
Q
IRS PRES POS INVALID advisory
A
associated IRS did not receive present position or received and invalid one
8
Q
XPDR 1 or 2 FAIL advisory
A
MRC 1 or 2 has detected a transponder failure
