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14 Cards in this Set
- Front
- Back
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Can you Depressurize a depowered A/C?
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No- The outflow valves will be springloaded closed. It take power to depressurize an A/C.
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Where are the outflow valves and how many of them are there?
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There are two located in the rear of the aircraft.
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What does the CABIN ALT light annunciator tell you?
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Cabin alt is above 12,500 ft
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Can we land pressurized in the BE1900?
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NO
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How are the BLEED AIR VALVES controlled?
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By the switches on the co-pilots subpannel. The switch has three positions, Bleed air OPEN, Envir. OFF, Instr & Envir OFF.
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What does the ENVIR FAIL light indicate?
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Environmental system bleed duct air overtemp/ overpressure condition +500F/ +44psi
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What does BL AIR FAIL light tell you?
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Melted or ruptured EVA line.
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What does the AIR COND N1 LOW light
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Engine N1 speed too low for VSM operation.
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What action do you take if the AIR COND N1 LOW light illuminates?
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Put the RIGHT condition lever to high idle.
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In the DUMP mode, is the outflow valve held open by electricity or vacuume
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vacuume
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What is a ACM (Air Cycle Machine)?
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It takes bleed air and is the primary source for cabin cooling.
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What is a VCM (Vapor Cycle Machine)?
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The VCM augments the ACM
It is a car style FREON air conditioner located on the back of the right engine. The ACM must be in full cold mode for the VCM to operate. |
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When will the Environmental system allow the vent fan to run on low?
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When it is operated in MAN or AUTO position, the fan will automatically be on LOW. If the environmental system is set to OFF, the fan switch can be set to LOW and the fan will run.
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Where are the O2 Bottles located?
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Under the floor boards in the nose baggage compartment. The bottles are interconnected and hold 76 cubic feet. They are filled on the left side of the A/C.
There is only one bottle on the cargo A/C. |
