LR45 PDF Annuciations

Question 1

HDG FAIL (RED)

Answer 1

Indicates an invalid heading source and illuminates in the center of the heading display. The most likely causes are:
- Local magnetic disturbance
- Low magnetic field strength
- AHRS fault or failure

Question 2

HDG TEST (RED)

Answer 2

Indicates the AHRS is in the power-up alignment mode and illuminates in the center of the heading display. Alignment requires approximately 2 minutes on the ground or 20 seconds in flight.

Question 3

AP (RED)

Answer 3

Indicates a monitored autopilot disconnect.

Question 4

AP (YELLOW)

Answer 4

Indicates the autopilot cannot be re-engaged normally. A full IC2 power down cycle may clear the fault and allow re-engagement.

Question 5

ATT FAIL (RED)

Answer 5

Indicates an invalid attitude source and illuminates in the center of the attitude sphere. Most liekly cause is an AHRS fault or failure.

Question 6

WINDSHEAR (RED)

Answer 6

Need to add information on this one.

Question 7

RA FAIL (RED)

Answer 7

Indicates resolution advisory information from the TCAS computer is corrupt. This can occur with or without an actual intruder present.

Question 8

ALT

Answer 8

Indicates a mismatch of the pilot’s and copilot’s altitude data.

Within the altitude tape at the upper corner.

Question 9

AOA

Answer 9

Indicates invalid angle-of-attack data. The LSA cue will not be displayed.

Located next to the airspeed scale.

Question 10

AP (flash)

Answer 10

Illuminates above the attitude sphere for 5 seconds and clears. Indicates the autopilot his disengaged. Accompanied by a “calvary charge”

Question 11

AP (steady)

Answer 11

This illumination indicates the autopilot has failed and is disengaged.

Located above the attitude sphere

Question 12

AP FAIL

Answer 12

This illumination indicates failure of the autopilot, yaw damper, or the rudder boost system during powe3r-up test.

Located above the attitude sphere

Question 13

AP TEST

Answer 13

This illumination indicates test mode for the AP during ground power-up of the AHRS

Located above the attitude sphere

Question 14

FD FAIL

Answer 14

This illumination and removal of the flight director steering commands indicate a failure in the flight director system or loss of sensor data required for the active modes on that side.

Located above the attitude sphere

Question 15

GS

Answer 15

Indicates a comparator mismatch of the pilot’s and copilot’s glideslope data.

illuminates below the attitude sphere of the left side.

Question 16

HDG

Answer 16

This illumination indicates a mismatch of the pilot’s and copilot’s AHRS heading data.

Located above the HSI (right side)

Question 17

IAS

Answer 17

This illumination indicates a mismatch of the pilot’s and copilot’s airspeed data.

Vertically illuminated within the airspeed tape at the upper corner

Question 18

ILS

Answer 18

This illumination indicates a comparator mismatch of the pilot’s and copilot’s localizer and glideslope data.

Located below the attidue sphere on the left side.