Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 958 / 1956

PAGE 12
Feb 28/07
5D16
34-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
CHART 6 (Sheet 2 of 3)
TROUBLESHOOTING EHSI (i.e. - ND)
Trouble Cause Remedy
Barometric setting does not Stuck and/or buttons Check and buttons
change in EADI Display Down
mode when the
and/or Failed ND Replace ND
buttons are pressed
Selected CRS does not change Stuck CRS knob Check CRS knob
when CRS knob rotated
Failed ND Replace ND
Selected HDG does not change Stuck HDG knob Check HDG knob
when HDG knob rotated
Failed ND Replace ND
Selected CRS does not align Stuck CRS knob Check CRS knob
with present heading when
CRS knob pushed
Failed ND Replace ND
Selected HDG does not align Stuck HDG knob Check HDG knob
with present heading when
HDG knob pushed
Failed ND Replace ND
Failure flags present on display Equipment supplying relevant Check status of equipment
data to ND failed supplying data to ND
Failed ND Check data on relevant
ND test page
Power on self test status on Failed ND Replace ND
Configuration Data page is
indicated as FAIL
Configuration discrete parity Parity input (Configuration Check configuration
status on Configuration Data Discrete 7) not wired correctly discrete setting
page is indicated as FAIL
Check wiring
Failed ND Replace ND
Installation location on Configuration discretes 0 and 1 Check configuration
Configuration Data page incorrect not wired correctly discrete setting
Check wiring
Failed ND Replace ND
PFD Interface Data Page shows RS422 Receive and/or Check wiring
valid data is not being Transmit lines are not connected
received/transmitted or wired correctly
Failed ND Replace ND
Failed PFD Replace PFD
ADAHRS Interface Data pages ARINC IN A and B Bus 1 lines Check wiring
show valid data is not being are not connected or are wired
received incorrectly
Failed ADAHRS Replace ADAHRS
Failed ND Replace ND