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14 Cards in this Set
- Front
- Back
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ASI block in static no change in alt |
No change in reading. |
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ASI static blocked |
Will react in OPP sense as alt |
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ASI pitot blocked |
Will react in same sense as alt |
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Errors in Alt |
Instrument, position or pressure, manoeuvre, time lag, barometric,temp |
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Alt static blocked |
Will read where the blockage occured, under read in a climb, over read in decent. |
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Alt, static leak outside pressure hull or unpressurised ac, and inside pressure hull. |
May continue to read correctly or read slightly higher outside pressure hull. Will read cabin alt in pressure hull. |
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VSI Errors |
Instrument, pressure or position, manuovre, time lag |
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VSI static block |
VSI ceases to function, will read 0 |
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VSI static line leak within pressure hull |
Will show constant and will show rod of cabin alt decrease or roc if cabin alt Inc. |
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Vsi Static line leak outside |
Continue to function. |
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Mach meter static blocked |
Will react in OPP sense as alt |
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Mach pitot blocked |
Will read in same sense as alt. |
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Mach static leak in pressure hull |
Will read cabin static pressure and will under read in climb. |
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Mach pitot leak |
Under read. |
