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inoperative and/or abnormal operation of aircraft
systems, depending upon whether the nutcracker
system fails in the ground or flight mode. See the
following table for nutcracker failure effects.
In flight with Nutcracker
System failed in ground
mode
On the ground with
Nutcracker System failed
in flight mode (Aircraft
with ASC 166A)
On the ground with
Nutcracker System
failed in flight mode
(Aircraft without ASC
166A)
Landing gear lever cannot
be positioned to up unless
the solenoid lock release
button is pressed
Red REV UNLOCK light
may illuminate when thrust
reversers are used. Thrust
reversers will stow at low
ground speed.
Thrust reversers
inoperative
OPERATING MANUAL
2A-32-00 PRODUCTION AIRCRAFT SYSTEMS
Page 20
January 31/02
Revision 6
In flight with Nutcracker
System failed in ground
mode
On the ground with
Nutcracker System failed
in flight mode (Aircraft
with ASC 166A)
On the ground with
Nutcracker System
failed in flight mode
(Aircraft without ASC
166A)
Auto-pressurization will
maintain 0.25 in differential,
and cabin altitude will climb
with aircraft. Manual
pressurization is available.
Red ACFT CONFIG
anunciation with speed
brake deployment
Red ACFT CONFIG
anunciation with speed
brake deployment
Thrust reversers will
operate in flight if power
levers are retarded to idle.
Ground spoilers will deploy
with wheel spin-up, but will
stow at low ground speed.
Ground spoilers will
deploy with wheel spinup,
but will stow at low
ground speed.
If Ground Spoiler switch is
armed, ground spoilers will
deploy in flight if power
levers are retarded to idle.
Anti-skid may not operate.
All braking may be
inoperative at low ground
speed unless anti-skid is
selected off.
Anti-skid may not
operate. All braking may
be inoperative at low
ground speed unless
anti-skid is selected off.
Stick shaker and stick
pusher are inoperative
Engine idle set to 67% HP
at low ground speed
Engine idle set to 67%
HP at low ground speed
APU bleed air inoperative APU bleed air
inoperative
Pressurization outflow valve
will not automatically open,
valve must be manually
opened.
Pressurization outflow
valve will not
automatically open,
valve must be manually
opened.
Stick shaker and stick
pusher remain armed.
Stick shaker and stick
pusher remain armed.
Landing gear lever handle
not protected by lock
release solenoid and gear
may be retracted.
Landing gear lever
handle not protected by
lock release solenoid
and gear may be
retracted.
Engines may not be
restarted after shutdown
Engines may not be
restarted after shutdown
3. Controls and Indications
A. Circuit Breakers (CBs)
Circuit Breaker Name CB Panel Location Power Source
LDG GEAR POS IND P E-5 (1) Emergency DC Bus
LDG WARN HORN P E-4 Essential DC Bus
L NUTCRACKER CPO A-13 Essential DC Bus
NUTCRACKER CPO B-13 Essential DC Bus
R NUTCRACKER CPO C-13 Essential DC Bus
NUTCRACKER BAT PWR CPO D-13 Battery Bus (2)
NOTE(S):
(1) S/N 1000-1279; B-5 on S/N 1280 and subsequent.
(2) Aircraft with ASC 242.
OPERATING MANUAL
PRODUCTION AIRCRAFT SYSTEMS 2A-32-00
Page 21
January 31/02
Revision 6
B. Warning (Red) Messages and Annunciations
CAS Message SWLP Indication Cause or Meaning
ACFT
CONFIGURATION ACFT CONFIG
Landing Gear not down and
locked with radar altitude ≤
1200 ft and power lever < 70%,
or Landing Gear not down and
locked with Flaps > 22° at any
altitude
NOTE:
See 2A-27-60, Flaps System for a description of the
Configuration Warning System
C. Other Warning Annunciations
Annunciation Cause or Meaning
Warning horn (SPZ-8000 equipped
aircraft) or Klaxon™ hi-lo, hi-lo (SPZ-
8400 equipped aircraft) sounds
Landing gear unsafe
D. Nutcracker Switch Test
The Nutcracker Switch Test button on the center pedestal is used to verify
that the main landing gear nutcracker switches are in the air (weight-offwheels)
mode during flight (the landing gear retracted). Pushing the button
should result in a green indication for the L (left) and R (right) strut
nutcracker switches on the main landing gear, indicating the air mode. See
the illustration in Figure 11. The switch should not be activated on the
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