DV 20 E AFM
Emergency
Procedures
Doc. No. 4.01.25-E Rev. 2 22-Mar-2022
EASA
approved
Page 3 - 33
(c) Airspeed Fail
AIRSPEED FAIL
The display system is not receiving airspeed input
from the air data computer; accompanied by a red X
through the airspeed display.
Revert to the standby airspeed indicator.
(d) Altitude Fail
ALTITUDE FAIL
The display system is not receiving altitude input from
the air data computer; accompanied by a red X
through the altimeter display.
Revert to the standby altimeter.
(e) Vert Speed Fail
VERT SPEED FAIL
The display system is not receiving vertical speed
input from the air data computer; accompanied by a
red X through the vertical speed display.
Determine vertical speed based on the change of altitude information.
(f) HDG
HDG
The display system is not receiving valid heading
input from the AHRS; accompanied by a red X
through the digital heading display.
Revert to the emergency compass.
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