190-02291-06 Rev. 2
AFMS
– GFC 500 Autopilot in Textron 182 Series
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SECTION 4
– NORMAL PROCEDURES
GFC 500 POWER UP
During the preflight test the G5 will display PFT in the autopilot status box. The autopilot disconnect tone sounds
at the completion of the preflight test. When the GFC 500 passes preflight test, PFT will be removed from the
autopilot status box.
FLIGHT DIRECTOR / AUTOPILOT NORMAL OPERATING PROCEDURES
Autopilot/Flight Director mode annunciations are displayed at the top of the G5 Electronic Flight Instrument.
Green text indicates active autopilot/flight director modes. Armed modes are indicated in white text. Normal
mode transitions will flash inverse video for 10 seconds before becoming steady. Abnormal mode transitions will
flash for 10 seconds in amber text before the default mode is annunciated as the active mode in green text.
Default autopilot/flight director modes are Roll (ROL) and Pitch (PIT) modes.
The autopilot status box displays the autopilot engagement status as well as armed and active flight director
modes.
Autopilot Engagement with Flight Director Off
— Upon engagement, the autopilot will be set to hold the
current attitude of the airplane if the flight director was not previously on.
In this case, ‘ROL’ and ‘PIT’ will be
annunciated.
Autopilot Engagement with Flight Director On
— If the flight director is on, the autopilot will smoothly pitch and
roll the airplane to capture the FD command bars. The prior flight director modes remain unchanged.
Autopilot Disengagement
— The most common way to disconnect the autopilot is to press and release the AP
DISC / TRIM INT button located on the control yoke. An autopilot disconnect tone will sound and an amber AP
will be annunciated on the G5 autopilot status box. Other ways to disconnect the autopilot include:
– Pressing the AP Key on the GMC 507 Mode Controller
– Operating the Electric Pitch Trim Switch (located on the control wheel)
– Pulling the AUTOPILOT circuit breaker
In the event of unexpected autopilot behavior, press and holding the AP DISC / TRIM INT button will disconnect
the autopilot and remove all power to the servos.
MANUAL AUTOPILOT DISCONNECT
If necessary, the autopilot may be manually disconnected using any one of the following methods:
1. AP DISC / TRIM INT Button .......................................................................... PRESS and RELEASE
(Pilot’s control wheel)
2. AP Key ................................................................................................................................... PRESS
3. Pitch Trim Switch ............................................................................................................. ACTIVATE
4. AUTOPILOT Circuit Breaker ..................................................................................................... PULL
Summary of Contents for GFC 500
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