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CSP 700−5000−6
Volume 2
02−10−49
MODES OF OPERATION (CONT'D)
Flight Sequences without FMS (Secondary Mode) (Cont’d)
• Between the above values the cabin rate of change is proportional to airplane vertical
speed.
Landing Sequence at Field Elevation greater than 5,670 Feet
NOTE
This sequence is not active during manual pressurization operation.
This sequence does not require additional crew action, if the actual landing field elevation was
selected prior to take-off. The scheduled cabin pressure is normally limited to 5,670 feet during
cruise and then automatically reset to the landing field elevation as airplane is descending for
landing.
41,000 feet
CABIN ALTITUDE
5,670 Feet
LANDING ELEVATION 11,000 feet
Landing Elevation 11,000 feet
Example:
CAUTION
WARNING
9,000 feet
8,200 feet
12,470 feet
11,670 feet
10,700 feet
GF0210_056b
CAB ALT LEVEL HI
CABIN ALTITUDE
AIRPLANE ALTITUDE
7,330 feet
The CABIN ALT caution (cabin altitude exceeds limits) is normally set for 8,200 feet and the
CABIN ALT warning is set for 9,000 feet. When the airplane altitude decreases below 41,000 feet,
with landing elevation selected to 7,230 feet or higher, the CABIN ALT caution and CABIN ALT
warning start to increase proportionally to the airplane altitude. The CABIN ALT caution is active
up to 1,000 feet above landing field elevation and the CABIN ALT warning up to 1,800 feet above
the landing field elevation. Both CABIN ALT caution and CABIN ALT warning are limited to
14,500 feet. A CAB ALT LEVEL HI advisory message is displayed on EICAS, informing the crew
that the warning and caution limits have been reset.
AIR CONDITIONING AND PRESSURIZATION
Flight Crew Operating Manual Rev 12, Aug 14, 2006
CSP 700−5000−6
Volume 2
02−10−50
MODES OF OPERATION (CONT'D)
Effectivity:
• Airplanes 9127 thru 9158 not incorporating Service Bulletin:
• SB 700−1A11−21−004, Modification − Pressurization Control − Cabin Altitude Reduction
During Flight for Improved Passenger Comfort.
Landing Sequence at Field Elevation greater than 7,230 Feet
NOTE
This sequence is not active during manual pressurization
operation.
This sequence does not require additional crew action, if the actual landing field elevation was
selected prior to take-off. The scheduled cabin pressure is normally limited to 7,230 feet during
flight and then automatically reset to the landing field elevation.
41,000 feet
CABIN ALTITUDE
7,230 Feet
LANDING ELEVATION 11,000 feet
Landing Elevation 11,000 feet
Example:
CAUTION
WARNING
9,000 feet
8,200 feet
12,470 feet
11,670 feet
10,700 feet
GF0210_056a
CAB ALT LEVEL HI
CABIN ALTITUDE
AIRPLANE ALTITUDE
7,330 feet
The CABIN ALT caution (cabin altitude exceeds limits) is normally set for 8,200 feet and the
CABIN ALT warning is set for 9,000 feet. When the airplane altitude decreases below 41,000
feet, the CABIN ALT caution and CABIN ALT warning start to increase proportionally to the
airplane altitude. The CABIN ALT caution is active up to 1,000 feet above landing field elevation
and the CABIN ALT warning up to 1,800 feet above the landing field elevation. Both CABIN
ALT caution and CABIN ALT warning are limited to 14,500 feet. A CAB ALT LEVEL HI
advisory message is displayed on EICAS, informing the crew that the warning and caution limits
have been reset.
Landing Sequence at Field Elevation greater than 5,670 Feet − Levelling Off During Descent
NOTE
This sequence is not active during manual pressurization operation.
AIR CONDITIONING AND PRESSURIZATION
Rev 12, Aug 14, 2006 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
02−10−51
MODES OF OPERATION (CONT'D)
Landing Sequence at Field Elevation greater than 5,670 Feet − Levelling Off During Descent
(Cont’d)
If a levelling off occurs above 41,000 feet during descent, the cabin remains at 5,670 feet. If
levelling off occurs at or below 25,000 feet during descent, the cabin remains at current altitude. If
levelling off between 41,000 and 25,000 feet, the cabin altitude will remain at the current altitude
for 3 minutes.
Example:
Less than 3 minutes
Less than 3 minutes
GF0210_057a
41,000 feet
CABIN ALTITUDE
5,670 Feet
LANDING ELEVATION 11,000 feet
CAUTION
WARNING
9,000 feet
8,200 feet
12,470 feet
11,670 feet
10,700 feet
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