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EMB-120 Limitations > Limitations > Flashcards

Limitations Flashcards

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1
Q

Minimum oil temperature for start

A

-40°C (red radial)

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2
Q

Maximum continuous Np

A

100%

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3
Q

What are the non-memory items on the QRC?

A
  • Engine Fire On Ground
  • Engine Fire In Flight
  • APU Fire
  • Class-C Baggage Fire Or Smoke
  • Inadvertent Propeller Feather
  • ————————-———————
  • Battery Overheat
  • Emergency Descent
  • Windshield Overheat
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4
Q

QRC Memory Item:

Prop Overspeed Np Above 103%

A

Identify the affected engine and proceed:
1. Power lever……………Flight Idle
2. Cond Lever…Feather, then check
3. Airspeed…………Below 180 KIAS
4. Flaps…………………….15 degrees
5. Airspeed…..125 KIAS MINIMUM
In case no feathering observed:
6. Electric Feather Switch…On, then check feather

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6
Q

Ground Idle with EEC on,
Condition Lever MIN-MAX

What is Np range?

A

MIN 50% - MAX 65%

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7
Q

What are the cues for windsheer?

A

15 KIAS Airspeed
500 FPM
5° Pitch Attitude
1 dot glideslope

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8
Q

Maximum DV window open speed

A

140 KIAS

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9
Q

Electric controller dump limit

A

13,000 feet

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10
Q

When is wheel braking available after landing?

A

(Which ever is first):

Wheel speed of 50 KTS
OR
3 seconds after weight-on-wheels

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11
Q

Maximum speed for setting Np to 100%

A

200 KIAS

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12
Q

Unusable fuel per wing

A

24 lbs

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13
Q

Minimum altitudes for autopilot\yaw damper use:

A

Takeoff…600 ft AGL

Nonprecision/Visual appr…400ft AGL

Precision appr…200 ft AGL

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14
Q

Maximum Continuous Tolerance for Np

A

100 to 101.0%

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15
Q

Maximum operating altitude-

EEC off, Engine Bleed Closed

A

FL 200

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17
Q

Green Hydraulic System Services (6)

A 
Outboard Brakes
Outboard Flaps
Landing gear
Nose wheel steering
Main cabin door
Rudder
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18
Q

Backup Battery Voltage/Amperage

A

24 Volts - 5 Amps

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19
Q

On the ground, Power Levers at GRD IDLE, EEC’s deferred:

Nh should be?

A

Nh greater than or equal to 50%

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20
Q

White ignition light on from _ to _?

A

0 to 50%

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21
Q

Vfe 25°

A

150 KIAS

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22
Q

Maximum continuous takeoff temperature T6

A

800°C

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24
Q

Normal battery voltage

A

24 Volts

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25
Q

Maximum Cruise Torque Np at 90%

A

80% Tq

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27
Q

QRH Memory Item:

Rapid Depressurization

A
  1. O2 masks…Don, select 100%

2. Crew Communication…Establish

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28
Q

Passenger O2 masks drop at what cabin pressure altitude?

A

14,000ft cabin pressure altitude

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29
Maximum Operating Altutudes RVSM Restriction
FL 280
30
Number of dripless sticks per wing
4
31
Minimum battery voltage for APU start
22 V
32
Maximum operating altitude: EEC On, Engine Bleed Open
FL 320
33
Maximum continuous torque for takeoff
100%
34
Maximum Crosswind, First Officer as Pilot Flying
20 KTS
36
T6 Maximum Temperature Warning light on at:
816°C
37
Maximum demonstrated Crosswind component
30 KTS
38
Maximum Cruise Torque Np at 85%
84% Tq
39
Circling Approach Airspeed
135 KIAS
41
Maximum wiper speed
160 KIAS
42
Minimum Operating Temperature
-54°C
43
Maximum Start Temperature (20 seconds)
816 - 850°C
44
Minimum Single Engine Autopilot Speed
120 KIAS
45
When does the APU shut down automatically in flight?
1. Generator Overvoltage Or 2. Overspeed
46
For advanced SWS activation: Pusher senses flaps? Shaker senses flaps?
Pusher flaps 0° Shaker flaps 45°
47
QRH Memory Item: Emergency Evacuation
1. Parking Brake…On 2. Pressurization System…Dump 3. Condition Levers…Fuel Cut-Off 4. Engine Fire Handles…Squeeze & Pull 5. Agent A & B (if necessary)…Discharge 6. APU Shutoff/Extg Switch…Close 7. APU Shutoff/Extg Switch (if necessary)…EXTG 8. EMER lights.…ON 9. Evacuation PA…Initiate 10. Power Select Switch, Backup Battery…OFF
48
Propeller Heat Cycle - COLD
ON… 20 seconds OFF… 60 seconds
49
Maximum cabin differential pressure
7.2 psi
50
Minimum Nh for Operation of Deice Equipment
80% Nh
53
Total Fuel per Tank
2,866 lbs
54
Flaps 45 Approach Airspeed
Vref + 10 KTS
55
Maximum Ramp Weight
26,609 lbs
56
Maximum Np for Ground Operations
65% Np
57
Vfe 45°
135 KIAS
58
When does backup battery power the Standby Attitude Indicator?
When Emergency Bus drops to less than19 Volts
59
What overrides GPU Power
Main Gen power
60
Minimum O2 for dispatch: Cabin Portable Bottle
1200 psi
61
Vfe 15° EMB Vfe 15° SKW
EMB 200 KIAS SKW 180 KIAS
62
When to use Ignition?
1. Icing Conditions 2. Moderate/Severe Turbulence 3. Contaminated Runways
63
Va
200 KIAS
64
Minimum Oil Temperature to Feather Propeller
10°C
65
When should oil level be checked after engine shutdown?
Ideally 15-25 minutes Limitation 10-30 minutes
66
HOLDING Minimum airspeed? Maximum bank angle? Minimum Np & Nh in icing?
170 KIAS 30° bank Ice- min Np = 85% Min Nh = 80%
67
Maximum Transient Torque | Up to ____ seconds
120% up to 20 seconds
68
Maximum Emergency Takeoff Power T6 Temperature | ? Minutes
816°C for 5 minutes
69
Maximum Operating Altitude: EEC On, Engine Bleed Closed
FL 250
70
Minimum Np for Takeoff
99.5%
71
Main Generators Maximum Amperage
400 Amps
72
Maximum Tailwind Component
10 KTS
73
Prop Heat Cycle NORM
ON……10 seconds | OFF……60 seconds
74
Minimum O2 for Dispatch: Main Bottle without passengers
800 PSI
76
Maximum Operating Temperature with EFIS
ISA + 35°C
77
Prop Tip Clearance
18 Inches
78
Normal Passenger O2
1850 PSI at 21°C
79
QRC Memory Items: Electric Trim Runaway
1. Electric Trim Wheel…Hold 2. AP/TRIM/PUSHER DISC switch…Press & Hold 3. Autopilot transfer switch…Press
80
Maximum Amps for Main Generators Above ___ ft or ISA+___°C
380 Amps Above 27,000ft or ISA+27°C
81
Maximum APU Amps Up to ISA+35°C Above ISA+35°C
Up to ISA+35°C: 16,000ft……290 A Above ISA+35°C: 15,000ft……280 A
82
Cold Weather starter limit
Oil temperature < 10°C 2 Start Attempts 30 sec On……3 min Off 30 sec On……3 min Off
83
What Accessories are on the RGB? | 6 items
- Prop Control Unit (PCU) - PCU Oil Pump - Aux Feather Pump - Overspeed Governor - Mechanical Hydraulic Pump - Aux Electrical Generators (On the power turbine)
84
What is the Maximum Nh limit when Power Levers are at Flight Idle?
Nh less than or equal to 75%
85
What accessories are driven by the TMM? | 5 items
- Air/Oil Separator - Oil Pump Pack - Starter/Generator - Mechanical Fuel Pump - HMU (Tq motor, Enrichment Solenoid Valve, etc) (On the high pressure turbine)
86
Maximum Continuous Oil Pressure for Takeoff
55 to 65 psid | Green Arc
87
When Power Levers are at Flight Idle & Nh < 75%: What is the oil pressure limitation?
40 to 55 psid | Lower red line and lower yellow arc caution range
88
Maximum Main Tire Speed
165 KTS
89
CREW OXY light on the MAP means?
O2 Cylinder Pressure below 375 psi = 35 minutes for Capt, FO, & Observer
90
Main Tire Hydroplane Speed
103 KTS
91
P3 Bleed Air is used for? | 6 items
- Pressurization/environmental - Vacuum for Pressurization - Pneumatic Deice - Hydraulic Reservoir Pressurization - Engine Labyrinth Seals - 109% Overspeed Protection
92
Nose Tire Hydroplane Speed
80 KTS
93
APU Fuel Consumption
Generator = 70 pph Bleed = 120 pph Gen & Bleed = 130 pph
94
VDP Calculation
DME- HAT/300 = distance from threshold TIME- 300 ft/NM 10% of HAT , seconds FAF to MAP (Last glance VDP 400 ft/NM) HAT/400
95
When is cold weather preflight required? | 6 items
1. OAT less than or equal to 5°C 2. Wing fuel temp less than or = 0°C 3. OAT less than or = 10°C & snow, water, or frost is present on the ground 4. Frost 5. Thru flight w/residual ice on aircraft 6. Fuel Tank Area Cold Soak -frost on wings OR OAT near 0°C & dew pt. spread is less than or = 3°
96
What is a total EEC failure?
1. Torque Motor Closes 2. HMU Solenoid Valve is DEPOWERED OPEN -Red EEC light, audio "Engine Control", White MANUAL light on
97
HMU Solenoid Valve fails to close descending thru 14,000ft
•Fails in CLOSED position (still energized) - HMU Solenoid failed to de-power OPEN or - Valve mechanically stuck 1. Altitude < or = FL 250 2. Torque > or = 20% (valve may be stuck in high altitude lean position) Red EEC light + "Engine Control"
98
White MANUAL light
= Torque Motor Closed | Total EEC failure
99
Minimum O2 for dispatch: Main bottle PSI with passengers
1,400 PSI
100
Maximum APU Operating Temperatures | above ___ altitude
Can operate APU up to 16,000ft when OAT is less than or = to ISA + 38°C. Can operate APU above 16,000ft when OAT is less than or = to ISA + 35°C
101
Maximum Amps for Auxiliary Generator | Above ___ Altitude?
140 Amps above FL 180
102
What is the minimum oil pressure when the Power Levers are at Ground Idle?
40 psid | Lower Red line
103
What is the maximum continuous oil temperature for takeoff? | 118A
45°C to 115°C
104
What calculated torque is take off not allowed?
Tq < 65%
105
What is the maximum transient oil temperature? (for ___ minutes) (118A)
115°C to 125°C For 20 minutes
106
How to feather the propeller?
-Manual Feather w/Condition Levers •PCU Pump & Manual Feather Valve -Autofeather -Engine Fire Handle -Electric Feather Switch •Aux Feather Pump & Feather Solenoid Valve
107
Take off and landing contaminated runway restrictions
DRY SNOW• > 6500ft runway = 4 in Less than or = 6500ft runway = 2 in WET SNOW• > 6500ft runway = 2 in Less than or = 6500ft runway = 1in SLUSH/STANDING H2O• > 6500ft runway = 1in less than or = 6500ft = 1/2 in
108
Engine Start- Ignition Light does not go out at 50%
1. Start Switch…Abort 2. Elec EMERG Switch…EMERG Bus Ties 1 & 2…OFF -verify Ignition Light out ``` 3. Power Select Switch…OFF R+L Main Gens…OFF R+L Aux Gens…OFF APU Gen…OFF Condition Levers…Fuel Cut-Off ```
109
Maximum Cruise Torque when Np at 100%
72% Tq
110
What are conducive icing conditions?
OAT is 10°C or below & visible moisture on the ground
111
Maximum transient Np
110% for 20 seconds
112
Np Overspeed Oil Pressure Limitation
103%
113
Vb | turbulent air penetration speed
175 KIAS
114
Engine Start Abort
- Condition Lever…Fuel Cut-off - Peak T6…Note - Ignition Switch…OFF, verify ignition light out - Start Switch…ABORT, check decrease Nh & T6 - Ignition Switch…AUTO
115
FAR Maximum Holding Speeds
Sea Level to 6,000ft = 200 KIAS 6,001 to 14,000ft = 230 KIAS 14,001 + = 265 KIAS
116
Vmo at what altitude?
272 KIAS at 13,000 ft
117
Gusty wind conditions approach speed
Add 50% of gust factor to Vref | If >130 KTS, fly faster airspeed not to exceed Vfe
118
Maximum emergency torque for takeoff
110% for 5 minutes
119
Emergency Fuel (at Max landing weight)
500 lbs
121
When does the autofeather activate?
When one torque drops below 22%
122
Maximum Operating Altitudes: EEC Off, Engine Bleed Open
FL 250
123
Max cargo weight | 700 Kg mod
1543 lbs
124
Items the fire handle activates
1. Fuel shut off valve 2. Hydraulic shut off valve 3. Bleed air valve 4. Engine Deice valve 5. Electric feather system
126
When is pusher inhibited?
Five seconds after takeoff & Greater than 173 KIAS
127
Hot battery bus items (7)
1. Main Cabin Door 2. Courtesy Lights 3. Auto Transfer 4. DC Indicator 5. Fire Extinguising 6. Fuel Shutoff Valve 7. Hydraulic Shutoff Valve
128
Maximum fuel imbalance
600 lbs
129
Maximum APU EGT at Idle
RPM > 90% = 732°C
130
Maximum continuous Nh limit | 118A
102%
131
What speed does Pusher arm?
Below 153 KIAS
132
Cabin altitude MAP light
10,000 ft cabin pressure altitude
133
Battery temperature warning
70°C
134
Maximum takeoff and landing pressure altitude
EEC On - Max 8,000 ft PA EEC Off - Max 10,000 ft PA
135
Maximum zero fuel weight
24,030 lbs
136
Nose wheel steering Tiller ° Nose wheel steering Rudder Pedal °
50° 7°
137
Auxiliary Generator on at ___ Np?
70%
138
How much fuel do you add to Unusable Fuel when main ejector pump is inoperative?
Add 79.6 lbs to 24 lbs unusable
139
What overrides APU power?
GPU power
140
Min/Max AIRSPEEDS for APU Air Start
Min = 135 KIAS Max = 200 KIAS
141
What percentage do generators parallel each other?
Within 10% of each other
142
Starter attempt limits
1. 30 sec on…3 min Off 2. 30 sec on…3 min Off 3. 30 sec on…30 min Off
143
Maximum Takeoff Weight
26,433 lbs
144
How long should Propeller be Feathered before shutdown?
20 seconds
145
What altitude does cabin pressurize to on takeoff?
-300 ft below field elevation
146
Ground Idle EEC On: | Condition Lever Nh Min-Max?
Min- 62% | Max 72%
147
Minimum ILS Coupled Autopilot Altitude
200 ft AGL
148
Engine Inlet Intake Deice Boot Cycle
6 sec ON, 174 sec OFF | 3 min
149
When does Autofeather arm?
1. Autofeather switch ON 2. Both power levers beyond 62° 3. Both engines Torque > 62% within 8 seconds
150
Straight-in Flaps 25° approach airspeed
130 KIAS
151
Electric Feather Pump Duty Cycle
20 seconds on, 6 consecutive cycles
152
Landing Gear Warning inhibited how long after takeoff?
60 seconds
153
Emergency Lights Battery
17 MINUTES to discharge 22 HOURS to recharge
154
Maximum Operating Temperature: FIS
ISA + 38°C
155
APU Starter Limits
``` 4 attempts: 30 sec ON……3 min OFF 30 sec ON……3 min OFF 30 sec ON……3 min OFF 30 sec ON……30 min OFF ```
156
Cabin Rate Knob: Climb detent? Descent detent?
``` Climb = 650 fpm Descent = 450 fpm ```
157
What speed is Anti-skid deactivated?
6 KTS
158
Deice boot time cycle
6 sec On, 54 sec Off
159
Minimum Fuel (at Max landing weight)
750 lbs
160
Minimum Np for icing conditions
85% Np
162
Minimum Oil Temperature to UNFEATHER the propeller
0° C
163
Number of emergency exits
6 total 2 DV Windows, Main Cabin Door, 2 overwing in row 6, one in row 9
164
Maximum Start Temperature | 5 sec max
850°C to 950°C
165
Normal cabin Differential Pressure
7.0 psi
166
When does APU start contact engage?
0 to 50%
167
Maximum Amps for AUX Generator
150 Amps
168
Inward Pressure Relief at:
-0.3 psi
169
Maximum Landing Weight
25,794 lbs
170
Maximum Cruise Torque Np at 80%
84% Tq
171
Skywest T6 climb limit
720°C
172
Avionics remaining in DC Electrical EMERG mode
ADF 1 Transponder 1 VHF 1
173
Blue Hydraulic System powers: | 5
1. Inboard Brakes 2. Inboard Flaps 3. Nacelle Flaps 4. Emergency/Parking Brake 5. Rudder
174
Roll Upset Recovery
* Roll Control Sluggish * Tendency to over control * High control forces Recovery: 1. reduce AOA using pitch 2. Apply power as necessary 3. Do not change configuration 4. Altitude loss is expected
175
Maximum Nose Tire Speed
183 KTS
176
V lo/le
200 KIAS
177
Minimum\maximum altitudes for APU air start
-1000ft to 20,000 ft
179
Maximum Np reverse
80.5%
180
QRH memory items: Cabin fire or smoke
1. O2 masks…Don, select 100% 2. Recirc & Gasper Fans…Off 3. Smoke Goggles…Don 4. Crew Communication…Establish
181
Np Overspeed Fuel Flow Limitation
109%
182
Rudder Green System Disabled at what Airspeed?
Greater than 120 KIAS
184
APU Maximum EGT during start
Rpm < 50% = 974°C
192
What is an EEC fail fix?
- Occurs below 14,000ft - Loss if a peripheral sensor 1. Torque motor freezes 2. Red EEC light illuminates 3. Audio "Engine Control"
194
What are the functions of the backup battery?
1. Stabilize current. | 2. Power the standby attitude indicator when EMER BUS drops below 19V

EMB-120 Limitations (2 decks)

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