EasyManua.ls Logo

Cirrus System 55X Autopilot - User Manual

Cirrus System 55X Autopilot
22 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
22-11
Page 1
All
EFFECTIVITY:
SYSTEM 55X AUTOPILOT
1. DESCRIPTION
This section covers those systems and components which use inputs to the system to automatically con-
trol the flight path of the aircraft through adjustment to the pitch/roll axis or wing lift characteristics and pro-
vide visual cues for flight path guidance. This includes the System 55X Autopilot system.
The S-TEC System 55X is a dual axis autopilot system that provides roll stability, heading hold, NAV/GPS
tracking, altitude hold, vertical speed selection, automatic glideslope capture, and automatic 45° intercept
to desired flight path capabilities controlled via the roll-trim cartridge and pitch servo. (See Figure 22-111)
The system components consist of a Flight Guidance Programmer/Computer, Altitude Selector/Alerter,
Altitude Transducer, Turn Coordinator, and HSI/PFD/GIA2. The operating controls for the autopilot are
located on the Flight Guidance Programmer/Computer.
Through panel mounted switches and the vertical speed knob, the Flight Guidance Programmer/Computer
serves the function of converting operator commands to logic signals for the roll and pitch computer func-
tions. The roll computer receives signal inputs from the Turn Coordinator and HSI/PFD/GIA2 to compute
roll commands for stabilization, turns, radio intercepts, heading and tracking. The pitch computer receives
signal inputs from the Altitude Transducer, accelerometer, glideslope deviations, and Altitude Selector/
Alerter.
Serials 22-0435 thru 22-1306 after SB 2X-22-03, 1307 & subs, 22T-0001 & subs with optional installation:
The Flight Director is a visual reference displayed on the Primary Flight Display (PFD) to simplify flight by
instrument navigation with or without the autopilot coupled. This feature requires System 55X Autopilot and
PFD. The Flight Director display consists of a wedged Reference Symbol, indicating airplane attitude, and
inverted-wedge Command Bars, indicating the recommended course attitude. To maintain selected course
while in manual flight mode, the pilot maneuvers the airplane so the top of the Reference Symbol fits into
the notch of the Command Bars.
The autopilot generates Flight Director Command Bars from modes selected on the Autopilot Computer,
including HDG (Heading), NAV (VOR, LOC, or GPS), GPSS (GPS Steering), ALT (Altitude Hold), GS
(Glideslope), and VS (Vertical Speed). The system consists of two lighted push buttons mounted on the
upper LH instrument panel for uncoupling and recoupling the autopilot, and wiring harnesses for System
55X Autopilot and PFD communication.
Serials w/ Avidyne Avionics: The S-TEC System 55X is powered by 28 VDC through the 5-amp AUTOPI-
LOT circuit breaker on the Essential Avionics Bus.
Serials w/ Perspective Avionics: The S-TEC System 55X is powered by 28 VDC through the 5-amp KEY-
PADS / AP CTRL circuit breaker on the Essential Avionics Bus.
For additional information on the autopilot system integration, see the S-TEC System 55X Autopilot Pilot’s
Operating Handbook. (Refer to 05-10)
15 Jun 2010

Questions and Answers

  • J
    Jason CarrSep 9, 2025
    Why am I seeing halo images on Cirrus Aircrafts?
    • V
      Vanessa DeckerSep 9, 2025
      If you are seeing halo images on your Cirrus Aircrafts, turn the system on during preflight or run-up to stabilize the window and body heaters prior to flight and allow for thermal stabilization. This will allow the infrared detector to compensate for the signal from the window.
  • M
    Matthew DixonSep 13, 2025
    What to do if NAV1 or COM 1 is not receiving valid data in my Cirrus Aircraft?
    • D
      davissarahSep 13, 2025
      If NAV1 or COM 1 is not receiving valid data in your Cirrus Aircraft, it could be due to a software or configuration error. Check the PFD Alert Window for GIA1 configuration, software, or failed data path error messages and correct any errors. Alternatively, the GIA 63 integrated avionics unit might be offline. In this case, swap GIA1 and GIA2 and reconfigure for new positions to verify the location of the problem. If the problem follows GIA1, replace GIA1. Also, inspect the Ethernet interconnect from GIA1 to PFD and unit connector pins for faults. If the problem persists, consider replacing the PFD.
  • N
    Nancy WestSep 15, 2025
    What to do if NAV2 or COM 2 is not receiving valid data in my Cirrus Aircraft?
    • U
      ucunninghamSep 15, 2025
      If NAV2 or COM 2 is not receiving valid data in your Cirrus Aircraft, it could be due to a software or configuration error. Check the PFD Alert Window for GIA2 configuration, software, or failed data path error messages, and correct any identified errors. Another potential cause is that the GIA 63 integrated avionics unit is offline. Try swapping GIA1 and GIA2 and reconfigure for new positions to pinpoint the problem's location. If the issue follows GIA2, replace GIA2. Inspect the Ethernet interconnect from GIA2 to MFD and unit connector pins for any faults. If the problem continues, you may need to replace the MFD.
  • W
    wallacejenniferSep 18, 2025
    Why does my Cirrus Autopilot System cause unexpected flight characteristics?
    • K
      Kayla BuchananSep 18, 2025
      Unexpected flight characteristics with the Cirrus Autopilot System engaged can be due to moisture in the static traps and/or sump. To resolve this, check the traps and sump for moisture and blow out the lines. Another cause might be moisture in the static line. Inspect the lines for moisture and perform a System Test on the Static System Plumbing.

Cirrus System 55X Autopilot Specifications

General IconGeneral
BrandCirrus
ModelSystem 55X Autopilot
CategoryAircrafts
LanguageEnglish

Related product manuals