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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Icing conditions |
1. OAT on ground or for t/o is 5C or blw and visible moisture or vis < 1sm 2. 5C or blw with surface snow, ice, standing water, or slush |
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Bleed air from single engine |
Sufficient for either: 1. Both ESC packs OR 2. 1 ESC pack & ice protection |
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Pitot and AoA sensors |
LH pitot probe & LH AoA sensor (ESS BUS) - probes 1 PB RH pitot probe & RH AoA sensor (NON ESS Bus 2) - probes 2 PB TAT sensor (ESS) & Stdby pitot probe (DC bus 2) - STBY PB
Static ports - ice free design (aerodynamically protected) |
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Windshield |
Wipers - separate 28V DC motors Heat 2 independent systems: - WSHLD 1 = Capt front & FOs side - WSHLD 2 = FOs front & Capts side System applies soft heat for first 5 mins to prevent thermal shock |
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Airfoil deice & sequence of de-icing cycle (5) |
Inflated (energized condition) - P3 air regulated to 21psi to boots Non-inflated condition - ejector flow control valve applies suction pressure to boots * bleed PBs must be ON to operate
Cycle: Outer section wing Outer section stab & upper vert stab Inner section stab & lwr vert stab Middle section wing Inner section wing
4 sec dwell time btwn sections EFCV energized for 6 secs (=46s) |
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Airfoil cycle selector |
Single - 1 deicing cycle only (46secs) Slow - deicing cycle (46secs) w/ dwell period of 134 secs btwn cycle = 3min Fast - decing cycle (46s) w/ dwell period of 14 secs btwn cycle = 1min |
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Engine air intake de-ice cycle |
3 inflatable boots ea inlet Engine intake boots: 6secs Deflate period: 54 secs |
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Horn heat ON on t/o |
LH = Left elevator and rudder horns RH = right elevator horn Blue numbers (Higher V1/Vr/V2) Otherwise could get stall horn - when selected ON, stick shaker/pusher thresholds adjusted |
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Prop heat electric pwr automatically removed |
If prop < 650 RPM = Np < 50% |
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Prop heat ab -10C |
De-icer mats heated for 7 secs seperated by 29 sec interval Blades 1/3/5 begin heating, 36 secs later other blades begin heat 72 secs total |
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Prop heat blw -10C |
Mats heated for 25 secs seperated by 17.5 sec interval Blades 1/3/5 begin heating, 42.5 secs later other blades begin heating 85 secs total *system auto shutdown ab 5C |
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Ice detection system |
Ice builds changing weight and resonance fqz ICE signal activated for 60 secs then heaters auto switched ON clear probe
EICAS msg stay on for 5 mins |
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Representative surface |
O/b LE of wing AND/OR Prop spinner |
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