Model 560XL Section III – Operating Procedures
Abnormal Procedures
190-02313-03 Rev. 8 Textron Aviation Citation 560XL
FAA Approved 3-47
FAILED AIRSPEED, ALTITUDE, AND/OR VERTICAL SPEED
RED "X" on PFD airspeed, altitude, and/or amber “X” on vertical speed indicator
This indicates a loss of valid air data computer information from the respective air data computer.
If airspeed or altitude is failed, the digital values will be removed, and a red “X” placed over the
indicator. If vertical speed is failed, the digital value will be removed, and an amber “X” placed over
the indicator.
In-flight, if one air data computer fails, the PFDs are designed to automatically switch to use the other
air data computer. This condition would be accompanied by an amber “BOTH ON ADC1” or “BOTH
ON ADC2” annunciation.
IF BOTH PFDS DISPLAY RED AND/OR AMBER X’S
1. Airspeed, Altitude and Attitude – MONITOR Using standby indicators.
2. With loss of redundancy of primary altimetry systems, perform appropriate RVSM
contingency procedures for the loss of primary altimetry systems.
3. Check pressurization controller for Isobaric Mode operation. Refer to AFM Abnormal
Procedures, CABIN PRESSURIZATION CONTROLLER FAILURE (AMBER LED
ILLUMINATED - ISOBARIC MODE).
4. Land as soon as practical.
NOTE
Autopilot and yaw damper are inoperative.
Procedure completed
IF ONLY ONE PFD DISPLAYS RED AND/OR AMBER X’S
1. Autopilot ALT Mode – DISENGAGE (Press ALT to de-select).
2. PFD Softkeys: Sensors – ADC Settings – SELECT the operable ADC on the affected PFD.
3. Both PFDs – CONFIRM AMBER “BOTH ON ADC1” or “BOTH ON ADC2” is annunciated.
4. If ADC1 has failed, check pressurization controller for Isobaric Mode operation. Refer to
Abnormal Procedures, CABIN PRESSURIZATION CONTROLLER FAILURE (AMBER LED
ILLUMINATED-ISOBARIC MODE).
5. Autopilot ALT Mode – RE-SELECT as desired.
6. With loss of redundancy of primary altimetry systems, perform appropriate RVSM
contingency procedures for the loss of primary altimetry systems.
Procedure completed
To Next Page
Loading...
