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16 Cards in this Set
- Front
- Back
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How is it determined if the fault is a pack overheat?
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If the inop light remains illuminated after selecting stby
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What are the 4 reasons the compartment temp inop light illuminates?
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1. fault in trim air controller 2. Trim air switch OFF 3. compartment temp controller OFF 4. compartment supply duct o/h
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What is the temp range for Comp Temp controller?
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18-30
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Where are the LT and RT recirc fans located and how is a failure indicated?
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1. Left - exhaust duct of the fwd E/E cooling system and draws air from F/D and E/E, gets filtered and returns to mixing manifold Right - aft cabin area 2. Both ON and INOP lights on and EICAS message
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What is indicated by a Flight Deck INOP light ? (2)
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1. Fault in the same temp controller 2. Trim Air switch is OFF
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What happens if the Center hyd system has a supply leak?
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below stand pipe fluid is provide for operation of the centers electic pump
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When only 1 elect sourse avail, what happens to Center hyd pumps?
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number 2 pump is inhibited to reduce load
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What does white ISLN light on accessory panel indicate?
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number 1 Center Hyd pump is isolated to provide pressure to the Res brakes and steering system
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When is LT demand pump inhibited?
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to reduce loads on gnd when starting either engine when only one electrical gen is operating
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What are the 2 important speeds for the RAT?
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130 kts to provide adequate hyd pressure and inhibited below 80 knots on gnd to avoid deployment during engine shutdown
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Why is flap 20 used for landing with multi hyd pumps inop?
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improves flair authority and go around performance
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What is significance of 60 kts with no nose wheel steering?
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rudder less effective after 60 and braking becomes key steering
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How is Hydraulic fluid cooled ?
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fuel heat exchangers
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When will RAT auto deploy?
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dual engine failure with no AC power
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What are the alt limits for APU?
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1. electric- service ceiling - 43,100 2. pneu - 17000
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What is average fuel consumption of APU ?
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115 kg/h on gnd and 90 kg/h in flight
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