OPC

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limitations for ground resets
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1. airplane on the ground and parking brake is set. 2. each procedure only once per flight leg.
how can we reset CBs during ground rests?
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one by one, or all of them and reset all of them next
priority order of ROOT EICAS messages
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WARNING, Electrical (AC than DC), MAU
shapes of TCAS identification
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RA - red square, TA - yellow circle, Proximate traffic - blue solid diamond (within 6,5nm and 1200ft above or below) or beyond - blue hollow diamond
when FADEC commands an automatic - what next?
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when ITT is 10°C lower than engine hot start limit - 2 additional engine starts are allowed
E2 - depulse
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when FADEC detets hot satrt: fuel off for 2s and back on for 12s. (on the ground 2 cycles, in flight 10cycles)
IDG - abbreviation:
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Integrated Drive Generator
When IDG 1(2) OIL message may display?
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oil pressure drops below 140+/-25 psi OR temperature reaches 168+/-5°C
for how long holding IDG knob to the DISC position?
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for 1 second
when automatic IDG disconnection may occur?
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when temperature reaches 185,6°C
AC electrical power system comprises of:
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2x IDGs, APU generator, RAT, 1x inverter
RAT is used as an emergency generator, supplying power to the:
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ESS BUSES
MAU abbreviation
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Modular Avionics Unit
Where is MAU 1,2,3 located?
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MAU 1 and 2 in forward electronics bay. MAU 3 in the center electronics bay
When is BATT 1(2) OVERTEMP triggered on EICAS?
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when temperature reaches 70°C for at least 2s
minimum battery 2 operating temperature for APU
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-20°C
batteries are rated at ...A
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27A
When is the horn sounds alerting ground personel?
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on the ground, after more than 5min airplane powered by the batteries
DGR document (red book) - number:
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ICAO 9481
EGPWS database consists of...
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all hard surfaces runways greater than 3500ft in length
EGPWS colours
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red +2000ft. orange +1000ft. yellow -250(gear down)/+500ft.
warning terrain and caution terrain
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warning - 30s from impact. caution - 60s from impact
upset recovery conditions:
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pitch up 25°, pitch down 10°, bank more than 45°
after what time will advisory messages on EICAS automatically acknowledged?
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after 5 seconds
aural warnings sound in sequence:
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EGPWS, TCAS, fire, overspeed, landing gear

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