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Upskill / Aircraft Maintenance / Fire protection systems: detection and extinguishing

Fire protection systems: detection and extinguishing

ATA 26 on transport aeroplanes: fire zones, engine and APU detection, halon bottles and squibs, cargo and cabin protection, halon replacement, maintenance and MEL

By Aerospace Garage Desk · Practitioner · 45 minutes · 24 narrated pages

What you will be able to do

  • ✓ Explain the fire triangle, designated fire zones and the CS-25 and 14 CFR Part 25 paragraphs for fire detection and extinguishing.
  • ✓ Describe continuous-loop, pneumatic and smoke detectors, dual-loop logic and how a system tells a fire from a fault.
  • ✓ Explain Halon 1301 bottles, squibs, discharge indicators and two-shot systems, and check a bottle pressure against a temperature chart.
  • ✓ Distinguish cargo compartment classes and describe detection and suppression, using the official findings on UPS Flight 1307.
  • ✓ Apply the ICAO and European halon replacement dates to cabin, lavatory, engine and cargo installations.
  • ✓ Carry out safe squib work, troubleshoot false warnings and make dispatch decisions using MEL relief and cargo suppression time.

Course content

Session 1 · Fire protection fundamentals

1.1

  1. Fire on board: why aircraft are different · free preview
  2. Designated fire zones and the certification rules
  3. The system on an illustrative twin-jet
  4. Worked example: counting the hand extinguishers
Session 2 · Engine and APU fire detection

1.2

  1. Detectors: spot, continuous loop and pneumatic
  2. Dual loops: telling a fire from a fault
  3. Testing, indication and the APU on the ground
  4. Worked example: isolating a loop fault
Session 3 · Extinguishing engines and the APU

1.3

  1. Halon bottles, squibs and two shots
  2. Indicators: how a bottle tells you it has gone
  3. The fire handle: what one pull does
  4. Worked example: bottle pressure against the temperature chart
Session 4 · Cargo compartment fire protection

1.4

  1. Cargo compartment classes
  2. Smoke detection in the holds
  3. Suppression: knock-down, then hold it down
  4. From the investigation file: UPS Flight 1307
Session 5 · Cabin fire protection and halon replacement

1.5

  1. Lavatory smoke detectors and waste-bin extinguishers
  2. Portable extinguishers
  3. Leaving halon behind
  4. Worked example: which halon date applies?
Session 6 · Maintenance, troubleshooting and dispatch

1.6

  1. Scheduled checks on chapter 26
  2. Squibs: the safety sequence
  3. False warnings, human traps and MEL relief
  4. Worked example: suppression time against diversion time

Who this course is for

Upskill courses are for professional development and are not approved by any aviation authority. Learner Terms

Course content © Aerospace Garage Limited. All rights reserved.