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Systems Ch. 6 Fire Protection
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What lights illuminate with a TAIL PIPE HOT condition
Master Warning
TAIL P HOT on CWP
What does a TAIL PIPE HOT light indicate
Respective Tail Pipe over temperature has been reached
What indications are given when a fire is detected in the engine nacelle
Master Warning
ENG FIRE CWP light
Fire Bell
Fire handle light illuminates
What is required to discharge an Engine Fire Bottle
Fire Handle must be pulled and FIRE EXTG switch to ON
How many Halon fire bottles are there per engine nacelle
1 Bottle
How is fire protection supplied after the first bottle has been discharged
The 2nd bottle is routed through a manifold to the engine with the pulled fire handle
How does the fire loop detect an engine fire condition
Through a drop in resistance due to gradual heat build up
What happens if a rapid change in resestance is noted (a short) in the fire loop
A FIRE DET FAIL light on the CWP and a master caution light will illuminate
What is being checked with the FIRE SHORT switch on the test panel
Checking the Fire Detect Loop
What does an AVIONICS SMOKE light indicate
Smoke is detected in the Avionics Rack
What does a CARGO SMOKE light indicate
Smoke has been detected in the Cargo area
How long will the Avionic, Lav or Cargo Smoke lights stay on?
As long as the smoke condition last
How many smoke detectors are in the cargo compartment
2
What does the white CARGO EXT light indicate
Fire bottle has discharged (may take up to 15 minutes)
What is the minimum time between discharging Cargo bottle #1 and #2
2 minutes (to prevent an overpressure condition of the compartment)
What is the recommended time between discharging the #1 and #2 fire bottles
Protection is guaranteed for 60 minutes if 2 is discharged at 25 minutes
How much time does a 2 bottle system provide protection for
60 minutes
How much time does a 1 bottle system provide protection for
35 minutes
What type of suppressant is in the Cargo fire bottles
Halon
What does a LAV SMOKE light indicate
Smoke detected in the Lav Area
How is an Avionics Fire Extinguished
Portable Halon bottle is discharged through a port on bulkhead behind the captain
How is the Lav trash bin fire extinguisher activated
Automatically by a heat sensitive plug
What actions take place when the fire handle is pulled
S ilences the fire bell
A rms the squibs
C loses the Fuel Shut off Vavle
R esets the Fire warning systems
O pens the Gen Relay
C loses the Bleed Balves for the affected engine
What crew actions are required if an Avionics Smoke light illuminates
O2 masks on
Smoke goggles on
Establish Communication
What other type of fire extinguisher is used for Lav Smoke and Fires
Pressurized water bottle extinguisher
If the ENG FIRE still exists after 1st bottle has been discharged, how long do you wait before you discharge the second bottle
30 seconds
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Author
vicoliveira
ID
162419
Card Set
Systems Ch. 6 Fire Protection
Description
Fire Protection System
Updated
2012-07-13T22:51:59Z
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