Pneumatic System Flashcards

0
Q

When do 10th SOVs close automatically

A

Over pressure or over temp

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1
Q

How are 10th stage SOVs operated

A

Pneumatically operated and electrically controlled

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2
Q

Check Valves

A

Prevent reverse flow from engine to engine

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3
Q

Failure position of 14th stage SOVs

A

Open

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4
Q

How are the 14th stage SOVS operated

A

Pneumatically operated and electrically controlled

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5
Q

14th stage Isol valve fail position

A

Closed

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6
Q

Bleed air leak detection

A

Wings
Fuselage
Pylons

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7
Q

DUCT MON knob

A

TEST - simulates overheat and logic test of the 10th & 14th stage (checks for continuity of the loops)
LOOP A or B - tests for short circuits in the 10th stage dual loops

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8
Q

What does the 10th stage DUCT FAIL PBA Light indicate

A

Bleed air leak in associated duct

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9
Q

10th stage bleed air used for what

A

Air conditioning
Engine start
Pressurization
Avionics cooling

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10
Q

What does DUCT FAIL lights on 14th stage PBA indicate

A

Bleed air leak in associated duct

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