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CABIN ALTITUDE
AIRPLANE ALTITUDE
7,330 feet
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.
If a levelling off occurs above 41,000 feet during descent, the cabin remains at 7,230 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_092
41,000 feet
CABIN ALTITUDE
7,230 Feet
LANDING ELEVATION 11,000 feet
CAUTION
WARNING
9,000 feet
8,200 feet
12,470 feet
11,670 feet
10,700 feet
CABIN ALTITUDE
AIRPLANE ALTITUDE
7,330 feet
AIR CONDITIONING AND PRESSURIZATION
Flight Crew Operating Manual Rev 12, Aug 14, 2006
CSP 700−5000−6
Volume 2
02−10−52
MODES OF OPERATION (CONT'D)
Landing Sequence at Field Elevation greater than 5,670 Feet − Levelling Off During Descent
(Cont’d)
If the levelling off lasts for more than 3 minutes, the cabin altitude will descend for a 5,670 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_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 9127 thru 9158 not incorporating Service Bulletin:
• SB 700−1A11−21−004, 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 descend 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
Rev 12, Aug 14, 2006 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
02−10−53
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 9127 thru 9158 not incorporating Service Bulletin:
• SB 700−1A11−21−004, 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
　
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