CIRRUS DESIGN SR20, Pilot Operating Handbook, Page: 73 / 508

P/N 11934-003 3-25
Cirrus Design Section 3
SR20 Emergency Procedures
System Malfunctions
Primary Flight Display System
In the unlikely event of a PFD failure, the pilot may lose the ability to
control the autopilot through the PFD controls. If this malfunction
occurs, the PFD circuit breakers may be pulled and the airplane flown
using the mechanical standby instruments. With the PFD circuit
breakers pulled, autopilot lateral control is available in GPSS steering
mode through GPS 1 and autopilot vertical control is available through
the Vertical Speed (VS) and Altitude (ALT) modes on the autopilot
head. Dim brightness level to black if PFD is found distracting.
PFD - Loss of Air Data
In the event the PFD detects a loss of air data, the affected indicator is
removed from the display and replaced with a red “X”. If loss of air
data occurs, refer to the mechanical standby instruments (altitude,
airspeed) and perform the following procedure:
1. Land as soon as practical.
2. Standby Instruments (altitude, airspeed) ....................... MONITOR
If failure occurs while flying in IMC:
Exit IMC.
PFD - Loss of Attitude Data
In the event the PFD detects a loss of attitude data, the affected
indicator is removed from the display and replaced with a red “X”. If
loss of attitude data occurs, refer to the mechanical standby
instruments (attitude, heading) and perform the following procedure:
1. Standby Instruments (attitude, heading) ........................ MONITOR
If failure occurs while flying in IMC:
2. Autopilot GPSS Mode .................................................... ACTIVATE
3. Autopilot Altitude Hold.................................................... ACTIVATE
Exit IMC.
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Revision A5