Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

BOEING 727 FIRE PROTECTION SYSTEM

No description
by

Jim Davis

on 10 September 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of BOEING 727 FIRE PROTECTION SYSTEM

BOEING 727 FIRE PROTECTION SYSTEM
BOEING 727 FIRE PROTECTION SYSTEM
727 Detection Systems
Engine Fire Detection
Wheel Well Fire Detection
Overheat Detection
APU Fire Detection
Main Cabin Compartment Smoke Detection
727 Extinguishing Systems
Engine
APU
Lavatory
Cargo
Overview of 727 Detection Systems
Wheel Well Fire Detection
Continuous loop fire detectors are provided in the right and left main wheel wells and the nose
wheel well. The detection elements are connected together to act as a single unit causing an
alarm to be given for any overheat conditions in the wheel wells.
Overheat Detection
Overheat protection is provided in the air conditioning and anti-ice duct areas to give warning of
duct failures. Heat from a broken duct could damage airplane structure.
APU Fire Detection
The APU fire detection system provides fire detection within the APU shroud. The system
responds to a general overheat condition or a localized fire condition by activating warning
lights and an alarm bell and horn. The system includes a test switch to permit testing of the
system either in flight or on the ground.
Main Cabin Compartment Smoke Detection
The system consists of two smoke detector units and necessary smoke detector tubing to
provide eight sensing points and exhaust tubing connected to the blower inlet duct of the
equipment cooling system. The intake points are located behind the air return grills in
the sidewall lining.
Engine Fire Detection
The engine fire detection system consists of: engine fire detection control unit, firewall sensors,
engine sensors, bell cutout switch, fire test switch, detector inoperative test switch, three amber
detector inoperative lights, red fire warning lights, and alarm bell.
Brief Overview of the 727 Extinguishing Systems
Freon gas and Halon are used as the extinguishing agent with nitrogen gas used to pressurize the bottles.
Engine Fire Extinguishing Systems
APU Fire Extinguishing System
The APU fire extinguishing system is a gaseous smothering system designed to flood the APU
shroud area with an inert gas in case of fire. This system is electrically controlled by switches
located on the APU control module in the control cabin and the APU ground control panel in the
left wing fillet area.
Lavatory Extinguishing System
The lavatory fire extinguishing system is a fixed system providing fire-extinguishing capability to
the lavatory cabinet assembly. Extinguishing is accomplished by flooding the cabinet area with
an inert gas.

The fire extinguishing system consists of a single heat activated extinguisher bottle and, when
installed, a temperature indicator.
Cargo Extinguishing System
The cargo compartment fire extinguishing system is used to control or extinguish fires that
occur in the forward or aft cargo compartments. The system uses halon as the extinguishing
agent,
Fire protection is separated into two categories; detection, and fire extinguishing.
The fire extinguishing system is a gaseous smothering system designed to flood the strut area
(the center engine has no strut area) and engine cowling space with an inert gas in case of fire.
This system is electrically controlled by switches located on the pilot's fire switch panel.
Full transcript