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5 Cards in this Set
- Front
- Back
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Cabin alt descending rapidly after take off |
One or both outflow valves stuck closed. Bleeds to ENVIR OFF. Cycle CAB PRESS to TEST possibly stuck solenoid. |
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Cabin not pressurizing
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-Check CAB PRESS is not in dump position.
-Possible left main gear squat switch failure. -One or more outflow valves fully open |
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Cabin over pressurization
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Outflow valves stuck closed. Turn switches to ENVIR OFF
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No Vacuum pressure
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18 psi pressure regulator failure.
-Deice boots inoperative |
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L&R Bleed AIR FAIL
L&R BK DI OVRT Vac & Pneumatic zero |
Failure of BOTH pneumatic systems
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