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LANDING ELEVATION
13,700 feet
CABIN ALT (caution)
CABIN ALT (warning)
45,000 feet
CABIN ALTITUDE
AIRPLANE ALTITUDE
GF0210_090
CAB ALT LEVEL HI CAB ALT LEVEL HI
3 minutes
Time
FL410
CABIN ALTITUDE
5,670 Feet
CAUTION
WARNING
8,200 Feet
9,000 Feet
25,000 feet
Example:
More than 3 minutes
Effectivity:
• Airplanes 9002 thru 9158 not incorporating Service Bulletin:
• SB 700−21−034, Modification − Pressurization Control − Cabin Altitude Reduction During
Flight for Improved Passenger Comfort.
If the levelling off lasts for more than 3 minutes, the cabin altitude will descent for a 7,230 feet
target cabin altitude until aircraft descent is resumed. As cabin altitude reaches 7,330 feet, the
CAB ALT LEVEL HI message will be removed and the CABIN ALT caution and CABIN ALT
warning messages will reset to the normal thresholds of 8,200 feet and 9,000 feet respectively.
LANDING ELEVATION
13,700 feet
CABIN ALT (caution)
CABIN ALT (warning)
45,000 feet
CABIN ALTITUDE
AIRPLANE ALTITUDE
GF0210_089
25,000 feet
CAB ALT LEVEL HI CAB ALT LEVEL HI
3 minutes
Time
FL410
CABIN ALTITUDE
7,230 Feet
CAUTION
WARNING
8,200 Feet
9,000 Feet
Example:
More than 3 minutes
AIR CONDITIONING AND PRESSURIZATION
Flight Crew Operating Manual REV 51, Aug 14, 2006
CSP 700−6
Volume 2
02−10−52
MODES OF OPERATION (CONT'D)
Take-Off at Field Elevation greater than 7,230 Feet
NOTE
This sequence is not active during manual pressurization operation.
When the airplane is in the climb, the CABIN ALT warning and CABIN ALT caution decrease
proportionally to the airplane altitude. As soon as cabin altitude reaches 7,330 feet or airplane
reaches 41,000 feet or above, the CABIN ALT caution is reset to 8,200 feet and the CABIN ALT
warning is reset to 9,000 feet.
If the Landing Elevation is switched to less than 7,230 feet before cabin altitude reaches 7,330
feet, CABIN ALT caution / CABIN ALT warning message may be displayed as the CPC is
reverted to the normal message threshold of 8,200 feet and 9,000 feet respectively.
Take-Off Elevation 13,700 feet
CAUTION
WARNING
Example:
GF0210_059a
41,000 feet
CABIN ALTITUDE
5,670 Feet
TAKE-OFF ELEVATION 13,700 ft
CAUTION 8,200 feet
WARNING 9,000 feet
14,500 feet
13,400 feet
CABIN ALTITUDE
AIRPLANE ALTITUDE
14,370 feet
Effectivity:
• Airplanes 9002 thru 9158 not incorporating Service Bulletin:
• SB 700−21−034, Modification − Pressurization Control − Cabin Altitude Reduction During
Flight for Improved Passenger Comfort.
Take-Off Elevation 13,700 feet
CAUTION
WARNING
Example:
GF0210_059b
41,000 feet
CABIN ALTITUDE
7,230 Feet
TAKE-OFF ELEVATION 13,700 ft
CAUTION 8,200 feet
WARNING 9,000 feet
14,500 feet
13,400 feet
CABIN ALTITUDE
AIRPLANE ALTITUDE
14,370 feet
AIR CONDITIONING AND PRESSURIZATION
REV 51, Aug 14, 2006 Flight Crew Operating Manual
CSP 700−6
Volume 2
02−10−53
MODES OF OPERATION (CONT'D)
Aborted Take-Off Above 7,230 feet
NOTE
This sequence is not active during manual pressurization operation.
The take-off is identical to normal take-off above 7,230 feet. When the airplane starts to descend,
an aborted take-off sequence is initiated. The landing is similar to landing above 7,230 feet.
CAUTION
WARNING
CABIN ALTITUDE
13,400 feet
LANDING ELEVATION
13,700 feet
13,400 feet
Take-Off Elevation 13,700 feet
Example:
GF0210_060a
14,500 feet
14,370 feet 14,370 feet
14,500 feet
Rate Limit Selection
Cabin rate of change control is automatically controlled during ground and flight sequences. The
airplane is normally flown with the rate limit selector set to NORM position. The automatic rate of
change control is based upon +500 fpm and −300 fpm. The airplane cabin altitude rate will vary
within these normal limits, to follow the pressurization schedule. The cabin rate is displayed on the
STAT page. If the cabin is in a climb, the arrow will indicate ↑. If the cabin is in descent, the arrow
will indicate ↓.
GF0210_061
1300
0.04
300
1000
CAB ALT
P
CAB RATE
LDG ELEV
NORM: 500 fpm up, 300 fpm down.
RATE
HIGH
NORM
RATE
It is possible to manually override the automatic rate of change control limits, through the rate limit
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