BOMBARDIER LEARJET 40 Pilot's Manual page 54

Pilot's Manual
If either channel of either DAU should fail, if either A or B reversion is
selected, if an engine or system miscompare is detected, an appropriate
CAS will illuminate.
The following CAS illuminations are specific to the DAUs:
CAS
DAU 1A-1B FAIL
DAU 2A-2B FAIL
DAU A REV
DAU B REV
DAU ENG MISCMP
DAU SYS MISCMP
LBS/KGS CONFIG
LBS/KGS CONFIG
The DAU circuit breakers are located in the INSTRUMENT/INDICA-
TIONS group on each circuit breaker panel. On the left side is DAU 1
CH A and CH B, and on the right side is DAU 2 CH A and CH B.
DAU 1 CH A and DAU 2 CH A are powered by the EMER BATT bus.
DAU 1 CH B and DAU 2 CH B are powered by the L and R essential
buses respectively.
5-50
Color
Amber Channel A and/or B of the #1 Data Acquisi-
tion Unit (DAU) has failed.
Amber Channel A and/or B of the #2 Data Acquisi-
tion Unit (DAU) has failed.
White Reversion of both Data Acquisition Units
(DAUs) to Channel A is selected by the crew.
White Reversion of both Data Acquisition Units
(DAUs) to Channel B is selected by the crew.
Amber The associated (L or R) Data Acquisition Unit
(DAU) has detected a miscompare between
channel A and B involving an engine parame-
ter (N ,N ,ITT).
1 2
Amber The associated (L or R) Data Acquisition Unit
(DAU) has detected a miscompare between
channel A and B involving a system parame-
ter (dc voltage, Emergency Bus voltage, dc
amperage, Battery temperature, Main
Hydraulic pressure, Brake Accumulator pres-
sure, Oxygen temperature and pressure).
Amber The configuration of the integrated avionics
computer is not compatible with that of the
data acquisition unit (i.e., one is configured
for pounds while the other for kilograms) on
the ground.
White The configuration of the integrated avionics
computer is not compatible with that of the
data acquisition unit (i.e., one is configured
for pounds while the other for kilograms) in
flight.
Description
PM-132A