GCU 477 FMS KEYBOARD
Last updated
Last updated
This section contains supplemental information to operate, in a safe and efficient manner, the aircraft when equipped with GCU 477 FMS Keyboard.
Regardless of the flight plan source, obstacle clearance and adherence to airspace constraints remains a pilot’s responsibility.
In case of malfunction observed within GCU 477 FMS Keyboard, flight crew must switch OFF immediately this system pulling out the relevant circuit breaker.
The GCU 477 Line Replaceable Unit (LRU) provides alphanumeric, softkey and flight planning functions keys used to interface with the Garmin G1000 Integrated Flight Deck. In addition, the GCU 477 provides COM/NAV tuning capabilities.
The system is electrically connected to the LH BUS and it is protected from over current by means of a breaker (5A) located in the breaker panel.
There are 4 input modes that perform different functions depending on which mode is activated.
FMS - MFD/PFD general input
Typing on keypad will input the key to active input box on MFD/PFD.
COM - COM standby frequency input
Typing on num keypad will activate standby frequency edit mode and input the key.
Pressing COM key will toggle tuning box to COM 1/2.
Pressing swap key will swap COM active and standby frequency.
NAV - NAV standby frequency input
Typing on num keypad in will activate standby frequency edit mode and input the key.
Pressing NAV key will toggle tuning box to NAV 1/2.
Pressing swap key will swap NAV active and standby frequency.
XPDR - Transponder code input on PFD
Typing on num keypad will input the key to Transponder code edit box.