BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 180

APU FAULT
OVER- OVER EGT
SPEED CURRENT HIGH
OIL
PRESS LOW TEMP HIGH
GEN ADAPTER OIL
PRESS LOW TEMP HIGH
IND RESET APU STOP
Remote Fault Panel
APU malfunction indication is provided on a re-
mote fault panel (figure 6-6) externally located
in a covered access on the aft left side of the rear
fuselage. The panel contains APU fault-indi-
cating flags for OVERSPEED, OVERCUR-
RENT, EGT HIGH, OIL PRESSure LOW, OIL
TEMPerature HIGH, and GENerator adapter
fault indication for OIL PRESSure LOW and
OIL TEMPerature HIGH. The normal flag in-
dication is black; the malfunction indication is
black and white triangles.
An automatic APU shutdown will cause the ap-
propriate flag to trip.
CL-600-2B16 PILOT TRAINING MANUAL
Figure 6-6. APU Remote Indicating Panel
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
In addition to the malfunction flags, the remote
indicating panel has two push button switches,
one labeled "INDicator RESET" and the other
labeled "APU STOP." Pushing the INDicator
RESET button with power on the battery bus
will reset any tripped flags, even if the fault
has not been corrected.
The APU STOP pushbutton, when pushed, in-
troduces a false overspeed signal to the ECU,
and the APU automatically shuts down.
NOTE
When a remote APU shutdown is
used, the APU START–STOP and
PWR–FUEL switchlights must be
pushed out to reset the ECU.
Lt é e
Lt d .
CL 601-3A/R 6-7