Limits Flashcards

1
Q

(731)

EGT - APR

A
AR = 974
BR = 996
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2
Q

(731)

EGT - TO (5min)

A
AR = 952
BR = 978
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3
Q

(731)

EGT - Start

A
AR= 952
BR = 978
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4
Q

(731)

EFT - MCT

A
AR= 924
BR = 968
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5
Q

(731)

EGT - Max Climb

A
AR= 928
BR = 968
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6
Q

(731)

Ground start and starter assist airstart

A

Speed: 10% N2 to light off

Time (max): 10 secs

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7
Q

(731)

EGT - Max Cruise

A
AR = 908
BR = 932
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8
Q

(731)
Windmilling air start
…Eng speed?
…Max time?

A

Windmilling N2 to 60% N2

45secs

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9
Q

(731)
Ground start
…speeds?
…time?

A

Light off to idle

60 sec

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10
Q

(731)
Oil pressure limit-
TO or Max Continuous

A

Min: 38psi
Max: 46psi

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11
Q

(731)
Oil pressure-
Idle

A

Min: 25
Max: 46

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12
Q

(731)
Oil pressure-
Transient

A

Max- 55 psi for < 3 mins

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13
Q

(700)
EGT Limit-
Max to N1

A

101.2%

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14
Q

(700)
EGT Limit-
TO (5 mins)

A

740

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15
Q

(700)
EGT-
Abort start @

A

750

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16
Q

(700)

Start transient

A

855 (5 secs)

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17
Q

(700)
EGT Limit-
MCT (N1)

A

100%

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18
Q

(700)
EGT Limit-
MCT (temp)

A

724

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19
Q

(700)
EGT Limit-
Max N2

A

105%

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20
Q

(700)
EGT limit-
Max overspeed

A

103.5% (+-.5%)

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21
Q

(700)

Max Permissible rpm

A

105% N2

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22
Q

(700) -
Takeoff
Max Transient rpm

A

782 (10 sec)

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23
Q

(700)

Inflight minimum idle (less than 200kias)

A
0-12k = idle
12k-25k = 68
25k-42k = 75
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24
Q

GE

Igniter time limits

A

2 mins on 3 mins off, then

2 on 23 off OR 5 on 25 off

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25
Q

Flap speed

Minimum

A

Up - 180
15 - 160
25 - 140
40 - Vref +10k

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26
Q

Flap speed

Maximum

A

UP- NA
15 - 200
25 - 190
40 - 180

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27
Q

Max paxs

A

10

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28
Q

Max TO alt

A

10,000

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29
Q

Max runway slope

A

-+ 2%

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30
Q

Max tailwind on TO or landing

A

10kt

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31
Q

Max cruise alt

A

42,000

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32
Q

Max alt for extending most equipment

A

20,000

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33
Q

Flight maneuvering load limits

A

Flaps retracted: +2.5 to. -1g

Flaps extended: +2 to 0g

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34
Q

Max ramp weight

A

GE: 28,660 lbs
AR: 29,100
BR: 30,500

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35
Q

Max TO weight

A

GE: 28,660lbs
AR: 29,100
BR: 30,325

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36
Q

Max landing weight

A

GE: 27,320lbs
Garrett: 27,734

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37
Q

Max zero fuel weight

A

22,000

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38
Q

Vmo

A

S.L: 350 kts
To 20k: 380 kts
> 20k: 380 kts

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39
Q

Mmo

A

.865

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40
Q

Vmca

A

110 kcas

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41
Q

Vmcg

A

115 kcas

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42
Q

Va

A

200 kt

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43
Q

Vlo

A

190kt

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44
Q

Vle

A

220 kt

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45
Q

Vle (Emergency)

A

190 kt

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46
Q

What is Vlo (defined)

A

Max speed lowering or raising landing gear

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47
Q

What is Vle (defined)

A

Max speed for operation with gear extended

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48
Q

Vllo

A

220kt

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49
Q

Vlle

A

220kt

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50
Q

Vabo

A

No limits

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51
Q

Vwwo

A

180kt

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52
Q

Do the engine computers need to be operative for takeoff?

A

Yes

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53
Q

Can you takeoff with APR inop

A

No

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54
Q

Can you use engine synch during takeoffs

A

No

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55
Q

Max operating altitude for the APU

A

GE - 15,000

Garrett - 20,000

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56
Q

Max APU start alt.

A

GE - 13,000

Garrett - 20,000

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57
Q

APU Generator load limit

A

300 amp

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58
Q

What do we use to shut down the APU

A

O/S Test button

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59
Q

Can we use APU override

A

No, Maint only

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60
Q

How long must the APU be cooled down between starts

A

5 mins

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61
Q

In the event of APU fire what do we wait for prior to discharge of the APU fire bottle

A

5%

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62
Q

Max EGT of the APU

A

680 C

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63
Q

What fuel pressure should the fuel truck be set at for single point refueling

A

Low Pressure, 50 PSI

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64
Q

What is the pressure relief valve set for at the pressurization system

A

8.5 psi

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65
Q

Can max window heat be used on ground

A

No, In flight only (IFL NEVER)

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66
Q

Max speed for open window

A

160kt

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67
Q

Max temp for wing anti-ice

A

+10 C

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68
Q

Can wing anti-ice be used on ground

A

No

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69
Q

Can engines anti-ice be used on ground

A

Yes

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70
Q

Max temp for engine anti-ice

A

+10C

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71
Q

What are some autopilot limitations

A
  1. No autopilot for TO or Land

2. One pilot seated w/seatbelts fastened with A/P on

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72
Q

Must EADI and EHSI be on and operational

A

Yes

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73
Q

How many symbol generators must be operating?

A

2 of 3

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74
Q

Can any yellow DU1 or DU2 or yellow/red SG flags be visible?

A

No

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75
Q

Must the battery powered stby horizon be operating

A

Yes

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76
Q

When can we use display down mode

A

Only after failure of upper display unit

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77
Q

What position must the AHRS stby battery be in for dispatch

A

ARM

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78
Q

Must AHRS 1 and AHRS 2 both be operating

A

Yes

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79
Q

How should the pilot set up AHRS

A

AHRS 1: pilot

AHRS 2: co-pilot

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80
Q

Can you TO with cross side AHRS

A

No

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81
Q

Where should the ADC switch be for TO and normal ops

A

NORM

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82
Q

Max battery temp

A

150F

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83
Q

What do you need to be RVSM equiped

A
  1. Autopilot
  2. Altitude Alert
  3. ATC Transponder
  4. 2 Primary ADCs
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84
Q

What are the max speeds for brake application

A

Garrett - 105

GE - 98

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85
Q

How tall is the tail

A

About 19’

86
Q

Electrical power is supplied by what systems

A

DC, AC, Emergency power

87
Q

What are the 4 DC power sources

A

Two batteries, two engine driven starter-generators, APU, GPU

88
Q

What provides emergency lighting

A

Battery packs charged by AC system

89
Q

AC power supplied by

A

Three DC driven rotary (PAC) or 3 static inverters (AMD)

90
Q

Batteries connected to DC system rated at

A

24-26 volts

91
Q

Why dont we use power carts to start engines

A

Power carts are 24 volts and will drain our batteries

92
Q

How are batteries normally used to start engines (GE & Garrett)

A

Parallel (Garrett)

Series (GE) in cold start

93
Q

How much voltage is supplied to starting bus in series start

A

48

94
Q

how much voltage is supplied to the main bus during series start

A

24 (Batt 1 relay opens so only #2 batt runs main bus and aux buses)

95
Q

How many volts are the generators rated at

A

28.5volts

96
Q

What is the DC power selector and what are the settings

A

Main power control / Cold start
Flight Normal
External Power

97
Q

What happens to the batteries in EXT power start

A

Both batteries are isolated and ext power supplies power to main, aux and starting bus

98
Q

What is the aux bus for

A

Load shedding non-essential equipment for battery conservation

99
Q

What is the reset button for between the battery on off switches

A

To reset the battery reverse current relay

100
Q

What is the reverse current relay

A

If more than 400amps flow through it (from the generator to the main bus toward either battery (backwards)) it opens and disconnects both batteries

101
Q

What light will you see if reverse current relay opens

A

Battery

102
Q

How can you check battery voltage

A

Turn on batteries individually and watch voltmeter on the top left of the panel

103
Q

Why would you get a battery warning light

A
  1. Either or both batteries disconnected from DC bus due to open bat relay or reverse current relay
  2. DC power selector is in cold start position
  3. External power position is selected and EXT power is plugged in.
104
Q

How many attempts should be made to reset the reverse current relay

A

No more than 2

105
Q

What is the normal range of the inverter

A

105 to 125 volts

106
Q

Why would get a GEN light

A

Generator disconnected from main DC bus

107
Q

Why would you get an AC FAIL light

A

Inverter loss to AC bus

108
Q

What temp is the thermal switch on the battery set

A

150F

109
Q

What voltage must the batteris be at to attempt a start? IFL RULE

A

20 Volts

110
Q

What odd items are on the essential bus

A

Tail beacon & Right landing lt. motor

111
Q

Approximately what duration is expected from emergency power source

A

30-40 mins @ 50 amps

112
Q

Max temp for series start operation

A

-10 C (Always cold start GE CF700)

113
Q

Should we start garretts in series

A

no

114
Q

Minimum DEEC voltage for dispatch

A

24

115
Q

Can all buses be powered by 1 battery

A

Yes

116
Q

What is the differential protection relay

A

Opens and disconnects the generator if it senses a short/fault between generator and bus

117
Q

What does differential protection relay look for (numerical value)

A

150 amp difference between generators and bus

118
Q

What powers the DEEC if main batteries lose power

A

Two 4 AH batteries + 1 standby 4 AH battery

119
Q

How long will the standby battery power the DEEC

A

Auto: 1 hour
Manual: 1hr 25mins
Off: 4hr 20mins

120
Q

What do the emergency DEEC batteries power in manual and off position?

A

Engine gauges

121
Q

What turns the amber computer light on

A
  1. Computer supply voltage below 12.5 volts
  2. Switch in MAN or OFF
  3. Failure of a system monitored by computer
  4. Computer stby battery voltage below 22 volts with plane on ground
122
Q

What is the start generator rated at

A

28.5 volts 300 amp

123
Q

Is emergency lighting AC or DC

A

AC powered by battery pack

124
Q

Jetpack batteries supply power to

A

standby gyro ans standby gyro instrument lights
#1 Comm (some cases)
AHRS in EFIS aircraft

125
Q

What else has a backup battery

A

Davton clock

126
Q

What 5 switches directly or indirectly effects battery control

A
  1. DC power selector
  2. AUX bus switch
  3. # 1 Batt switch
  4. # 2 Batt switch
  5. Battery reset switch
127
Q

What switches can control the generators

A
  1. DC power selector

2. Each generator on/off switch

128
Q

What position must the DC power selector be in to have generators connected to the distribution system

A

Flight Norm

129
Q

What is the acronym for generator problems

A

Short - Gen switch drops to off position
Overvoltage - Gen switch drops
Undervoltage - gen switch stays up (on)
Reverse current - switch stays on

130
Q

Will the generator function as an engine starter in the off position

A

no

131
Q

To check voltage on either generator or battery what must be done

A

Turn off other generator or battery to isolate the one you want and read voltage on the dc voltmeter on overhead panel

132
Q

When will you get DC GEN light

A

When either gen is disconnected from main bus

133
Q

Does the DC GEN light mean the generator is off

A

No, could be just isolated (IE. Undervoltage, reverse current)

134
Q

When using series start, first engine is started with? Second?

A

Batteries in series

135
Q

Can generators come online with switch in cold start(series)

A

No, must be in flight normal

136
Q

Can we do cold starts

A

Only with MX approval on garretts, GE = Yes

137
Q

What must GPU be rated at for use to start

A

28.5 volts +-1000 Amps min, 1200Amps max

138
Q

Start safety system - What controls need to be positioned where for the starter to engage?

A

Gen - On
Batt. Switches - Both on
Igniters switch - Ground Start (or motor start stop to motor)
Power lever - Idle/cutoff

139
Q

What are the start limits?

A

1st attempt - 40 sec on / 1 min off
then motor - 15 sec on / 2 min off

2nd attempt - 30 sec on / 1 min off
then motor - 15 sec on / 2 min off

3rd attempt - 30 sec on / 30 min off

140
Q

What are start limits above 30C

A

Double time between successive starts

141
Q

What voltage will the generator put out regular and after start

A

28.5 normal / 27 for three minutes after battery start to charge batteries more gently

142
Q

Will the generators have reduced voltage after APU start

A

No, 28.5

143
Q

Max gen output

A

300 amp

144
Q

Max recommended continuous outpot

A

200 amp

145
Q

What is the generator altitude range and how is it cooled?

A

42,000ft cooled by bypass air

146
Q

Can one generator supply power for all systems in normal ops

A

Yes (Normally operating at <150 amps/gen in 2 engine operation)

147
Q

What is the APU generator rated at?

A

300amp

148
Q

What are the current limiters rated at in GE and Garrett engines

A

150 amp GE / 300 amp garretts

149
Q

How do you test current limiters?

A

After start flip batt #1 off and on and you should see a change in the charging needle. If not, the current limiter was fried. To test #2 do the same with the #2 batt

150
Q

GPU turns off if voltage exceeds?

A

29.5 volts

151
Q

What switch must be used to use GPU

A

EXT power on DC power selector

152
Q

What happens to the other generators when GPU is plugged in?

A

They are isolated.

153
Q

What are inverters

A

Turn DC into AC

154
Q

What voltage do the inverters supply

A

115 volt AC/ 26 Volt AC / 5 volt for instrument lighting

155
Q

How is the 5 volt AC produced

A

Through stepdown transformers

156
Q

New AMD system inverter

A

Garrett TFE731

157
Q

New AMD system inverters rated at? What kind of inverters?

A

750 volts amp, 115 volts 400hz

Static

158
Q

What systems sypply power to inverters

A
#1 pilots side - Non shed DC
#2 copilots side - load shed DC
Standby - non shed DC
159
Q

When can standby inverter power #1 AC bus? #2?

A

Can power #1 anytime

Can power #2 only in non load shed condition (AUX bus on)

160
Q

Which inverter can work when AUX bus is off

A

1

161
Q

1 AC bus controls

A

Essential AC

162
Q

PAC system is on which planes

A

CF700 powered

163
Q

Inverters rated at?

A

1 and #2: 2500 A

Standby: 750 A
All 115 volts 400Hz

164
Q

What kind of inverters does the PAC system use

A

Dynamic

165
Q

Inverter selector switch has what 2 settings

A

1 and #2

166
Q

These 2 inverters are on which bus (load shed or non-load shed)

A

Non-load shed

167
Q

What happens if aux bus is turned off? (Inverters)

A

Lose 1 and 2 inverters

168
Q

What happens if you power system up on #1 inverter and the inverter fails

A

Switch drops to #2 inverter

169
Q

What positions does the standby inverter have

A

Normal
Off
On

170
Q

What is normal for (standby inverter switch)

A

If switch is in normal and you lose both #1 and #2 inverters the standby inverter turns on automatically

171
Q

What is on for? (Standby inverter switch)

A

To override the other inverters and run the standby inverter

172
Q

Normal switch selection should be? (Standby inverter switch)

A

Inverter selector - #1 (UP)
Inverter control - On (UP)
Standby switch - Normal

173
Q

Why normally select #1 inverter?

A

So it will drop to #2 if it fails (automatically switches)

174
Q

What must you do to get inverter selector to stay on #1 inverter?

A

Hold lever up until inverter is turned on

175
Q

What powers emergency lighting?

A

two nicad batteries 4-5 volts

176
Q

What switch controls emergency lights

A

EXIT LIGHTS switch on overhaul panel

177
Q

What positions does the emergency light switch have?

A

OFF, ON, ARM

178
Q

What is off position for?

Emergency light switch

A

Lights are not grounded and cannot illuminate

179
Q

When do we use the off position?

Emergency light switch

A

When shutting down aircraft

180
Q

When might you turn the switch ON?

Emergency light switch

A

Engine start at night

181
Q

Why might you turn the (Emergency light switch) ON during engine start?

A

Main lights will fade out during start but exit lights turn dome light on

182
Q

What does ARM do? (Emergency light switch)

A

Turns lights on if power is taken from main bus

183
Q

Emergency lighting battery is charged by

A

load shed AC bus

184
Q

Instrument lighting is powered by?

A

AC

185
Q

Intergral lights (inst Rim Lights) are powered by?

A

DC rectified from 115 AC through stepdown inverters

186
Q

Cabin lights and CB panel lights are powered by?

A

DC

187
Q

What is the speed and alt. limit for retractable landing lights

A

220kts and not above 20,000

188
Q

Landing light switch positions are

A

ON - Extends and illuminates when extended
OUT - extends lights (doesnt turn on) (if lights are on you can turn them off without retracting by flipping back to out)
OFF - retracts and extinguishes lights

189
Q

How many fuel tanks are there?

A

4 (2 wing and 2 feeder)

190
Q

How much fuel do they hold

A

Wings: 8230
Feeder: 430

191
Q

How is fuel delivered to engines

A

Wings: electric fuel pumps
Feeder: boost pumps

192
Q

What is the fuel feeder tank system called?

A

Transfer

193
Q

What powers the transfer system

A

electric pumps and bleed air

194
Q

What pressure are the tanks pressurized to

A

Wings: 3.62 psi

Feeders 1.45 psi

195
Q

What pressure do the electric fuel pumps operate at?

A

Garrets: 5.5psi
GE: 8.7psi

196
Q

When will the #1 transfer light come on?

A

Transfer pressure below 4 psi

197
Q

Why might the pressure in transfer pump be low

A

Loss of pump
Leak in transfer line
low wing fuel

198
Q

Fuel transfer psi is normally

A

about 20psi

199
Q

How is fuel transferred between tanks

A

Interconnect system

200
Q

How is the fuel transfer system powered

A

Jet pumps powered by excess fuel turned back into tanks from the fuel pumps

201
Q

How else can fuel be moved?

A

A cross feed system routes fuel from one feeder tank across to the opposite engine

202
Q

Does this system (cross feed) move fuel to the opposite feeder tank?

A

No, directly to the engine.

203
Q

How is fuel measured

A

Capacitance probes in wing tanks and floats in feeder tanks

204
Q

What feeds APU fuel

A

Right feeder tank

205
Q

How many floats in feeder tanks?

A

One in most, two in some (higher is backup shutoff or ground fuel)

206
Q

Where does power come from for transfer pumps

A

28.5 DC from shed bus

207
Q

When are transfer pumps on?

A

All normal operations

208
Q

Transfer pumps fuel flow is?

A

3,500lbs/hr

209
Q

Where are the manual transfer shutoff valves

A

Emergency compartment and mid cabin aisle floor

210
Q

How do you move fuel from one wing to the other

A

Open interconnect valves and hut of transfer pump on side with more fuel. Fuel is sucked into low tank by interconnect jet pump.

211
Q

What rate will the interconnect jump deliver at?

A

2400 lbs/ hr

212
Q

What method of fuel balancing would be most efficient at high power settings? Low power settings?

A

High: Cross feed
Low: Interconnect