E8 L3 Environmentals Gauge Flashcards by Mark Yurgil

Q

Stage of compression tap off for wing anti-ice

A

9th stage

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Q

Normal regulated system pressure by bleed valve

A

45-60 psi

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Q

Bleed air valve driven toward closed (temperature)

A

450°F

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Q

Bleed air valve closed

A

490°F

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Q

Pre-cooler bypassed

A

<360°F

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Q

Precooler valve fully opened

A

> 425°F

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Q

Pre-cooler discharge temp OVERHEAT illuminates

A

505°F (+/-10)

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Q

FIREWALL CLOSED light illuminates

A

70-80 psig

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Q

FIREWALL CLOSED light extinguishes

A

73 (+/-1) psig

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Q

OVERPRESSURE light illuminates

A

83 (+/-2) psig

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Q

OVERPRESSURE light extinguishes

A

76 (+/-2) psig

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Q

ACM temperature output

A

35 (+3/-2) °F

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Q

35 degree control valve fully open

A

33°F

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Q

35 degree valve closed

A

38°F

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Q

Primary heat exchanger bypass valve

A

Maintain 60°F compressor inlet temp

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Q

Temp LEAK light illuminates in engine strut downstream on firewall SOV

A

310°F

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Q

Temp LEAK light illuminates anywhere along wing

A

255°F

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Q

AIR COND UNIT OFF light illuminates

A

245°F turbine inlets

Q

AIR COND UNIT OVHT light illuminates

A

335°F compressor outlets

Q

CREW/MAIN CABIN OVHT light illuminates

A

190°F

Q

MAIN CABIN ALERT light illuminates

A

220°F

Q

Normal operating range in inches of water

A

4-20 inches

Q

Minimum inches of water to open trim air valve

A

4 inches

Q

TURBO-FAN EXIT valves closed above

A

5000 ft AGL

VCM output temperature to PME

43°F

VCM PACK ON light time to illuminate

Up to 10 seconds

Time after (trip) reset before VCM back to ON

53 second

Number of VCM resets inflight

3

Equipment cooling VALVE OPEN light indicates

valve open more than 30 degrees

VALVE OPEN light extinguishes during climbout

2.8 psid

VALVE OPEN light illuminates during descent

1.8 psid

Draw Through OVBD VLV OPEN light

Overboard discharge valve open more than 3°

OVBD VLV OPEN light extinguishes after T/O

within 30 sec

COTS allowable temperature range

55 to 90°F

Pressurization in TAKEOFF position

Cabin altitude descends 250 ft below airport

Max differential pressure (both outflow valves)

8.6 psid

Pressure relief setting

9.42 psid positive / .36 psid negative

Emergency depressurization switch

1 psig of ambient within 60 seconds

Cabin altitude warning horn (LOSS OF PRESS)

10,000 (+/- 1000)

Cabin altitude override limits cabin altitude to

14,000 ft

Inner window cracked depressurize to

5.0 psid

Both windows cracked depressurize to

2.0 psid (inner and outer)

Stage of compressiong tap off for conditioned air

15th stage