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Sub-section - 4.05
ABNORMAL PROCEDURES
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
AVIONICS SYSTEMS
(continued)
Radio Equipment Failure
If power failure to individual radio system components is observed or suspected, power may be
regained by operation of the PE, PS 1 and/or PS 2 Avionics Master Bypass switches, located on
the DA-A circuit breaker panel, behind the copilot.
Each Bypass switch controls the following:
Fan Failure
Illumination indicates failure of the relevant fan providing cooling air to the pilot’s and/or copilot’s
PFD, MFD and controllers.
During Taxi
Cockpit Blower circuit breakers ..................................Check (DA-D - P4, or P5)
Failure must be corrected prior to flight.
During Flight
Cockpit Blower circuit breakers ..................................Check (DA-D - P4, or P5)
PE Bypass Switch
PS1 Bypass Switch
PS2 Bypass Switch
ADF 1
Audio 1
CTL-23
DME 1
VHF 1
VOR 1
Transponder 1
EGPWS
HF 1
PA System
Radar
Radio Altimeter
SELCAL
TCAS
Audio 2
DME 2
GPS 2
Transponder 2
VHF 2
VOR 2
FAIL
FAN
R
L
For Training Purposes Only