Specifications

SECTION V
ABNORMAL PROCEDURES
MODEL 560
CABIN PRESSURIZATION CONTROLLER FAILURE (AMBER LED ILLUMINATED)
NOTE
Detection of auxiliary control will be indicated by the SET ALT display showing the
F
L
icon and illumination of an amber LED in the upper left corner of the controller
face.
Indicates probable loss of air data sensor (copilot's) input; therefore, the controller auto-
schedule function will be inoperative.
1. Pressurization Controller Knob - SELECT CA or FL (cabin altitude or flight level).
2. Pressurization SET ALT Knob - SET DESIRED CA or FL.
3. Prior to Descent - SET ALT Knob - SET CA to destination airport elevation.
AIR CYCLE MACHINE OVERHEAT (ACM O'HEAT CAUTION LIGHT ON)
Indicates possible excess pressure in the bleed air supply to the ACM or overheating of the air cycle
machine. The ACM will automatically turn off and the emergency pressurization will automatically
come on.
ON GROUND
1. Correct prior to flight.
IN FLIGHT
1. Temperature Select Knob - ADJUST to warmer setting (may require manual mode).
2. PRESS SOURCE Select Knob - R, L or NORM.
IF ACM O'HEAT CAUTION LIGHT REMAINS ON
3. PRESS SOURCE Select Knob - EMER.
4. Control cabin temperature with left throttle.
NOTE
Emergency pressurization utilizes precooled bleed air (475°F) from the left engine.
ELECTRIC ELEVATOR RUNAWAY TRIM
1. AP TRIM DISC Button - PRESS and RELEASE.
2. Throttles - As required to control airspeed.
3. Manual Elevator Trim - AS REQUIRED.
4. PITCH TRIM Circuit Breaker (LH panel) - PULL.
NOTE
Do not attempt to use the autopilot if the electric trim is inoperative. The autopilot will
not be able to trim out servo torque, and disengaging the autopilot could result in a
significant pitch upset.
I 5-14 Configuration AA 56OMB-01