CIRRUS A
IRPLANE
M
AINTENANCE
M
ANUAL
C
HAPTER
22-10: GFC 700 A
UTOMATED
F
LIGHT
C
ONTROL
S
YSTEM
MODELS SR22
AND
SR22T
T
ROUBLESHOOTING
11
Trouble - GSA 81 / GSM 86 Roll
Servo
Probable Cause
Remedy
“ROLL” (white text on red
background) annunciation is
displayed on PFD.
Roll axis failure has occurred.
Check AUX – SYSTEM STATUS page
on MFD to verify roll servo is online
(green check).
Verify roll servo is receiving power.
Check roll servo wiring and
connector.
Perform Operational Test - GFC 700
Autopilot.
Replace roll servo.
“AIL
” (black text on yellow
background) annunciation is
displayed on PFD.
The aileron is mis-trimming to right.
Check for possible fuel imbalance.
Perform Operational Test - GFC 700
Autopilot.
Check aileron roll control rigging.
Replace roll servo.
“
AIL” (black text on yellow
background) annunciation is
displayed on PFD.
The aileron is mis-trimming to left.
Check for possible fuel imbalance.
Perform Operational Test - GFC 700
Autopilot.
Check aileron control rigging.
Replace roll servo.
23 Dec 2016