MD-11 Flight Crew Operations Manual
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Air -
Controls and Displays
Air.30.10
4. Smoke and Heat Detectors - amber/white
Detected smoke is shown by a small amber triangle in the appropriate
compartment. Detected heat is shown by a small amber circle. During a
smoke detector test, CARGO SMOKE TEST is shown in white below the
outflow valve readout. Failed smoke and heat detectors are shown as amber
rectangles with an F inside.
5. ALT Readout - white/red/amber
Cabin altitude (feet) is shown in the right center of the screen. Digits are
normally white, but turn red and are boxed when cabin altitude exceeds
10,000 feet. If no valid cabin altitude is available, the digital readout is
replaced by an amber X.
6. DP Readout - white/red/amber
Cabin differential pressure (psi) is shown below ALT readout. Digits are
normally white, but turn red and are boxed in red when differential pressure
exceeds 9.1 psi. If no valid differential pressure data is available, the digital
readout is replaced by an amber X.
7. RATE Readout - white/amber
Cabin altitude rate (feet per minute) is shown below DP readout. Downward
rates are indicated by a downward pointing arrowhead. Upward rates have an
upward pointing arrowhead. Digits are normally white, but turn amber and
are boxed in amber when the rate exceeds plus 1500 feet per minute or minus
750 feet per minute for 15 seconds, or plus 3000 feet per minute or minus
1500 feet per minute for 5 seconds.
8. LAND Readout - magenta/white/amber
Landing altitude is shown below RATE readout. Landing altitude is supplied
by the FMS and is shown in magenta, or is shown in white and boxed if set
manually through the cabin pressure controller. If no valid landing altitude is
available through the FMS, the readout is replaced with amber dashes.
9. OUTFLO Readout - white/amber
Outflow valve position is shown below the LAND readout. This display is
normally white, but the letters CLSD turn amber when the valve is fully
closed.
10. APU Air Readout - white/green
Readout appears only when APU air is available. Readout is white when APU
bleed air load valve is closed and green when APU bleed air load valve is
open.
October 02, 2006
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