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Questions and Answers
What is protected by the fire extinguishing system?
What area is not protected by the fire and smoke protection system?
What type of detection is provided for the engines and APU?
What is located in the cockpit and cabin areas?
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What is protected by smoke detection?
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The flight crew should initiate an emergency descent if they confirm that cabin altitude and rate of climb are excessive and not controllable.
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The flight crew should perform the actions of the EMER DESCENT in three steps.
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The use of AP and A/THR is mandatory to initiate the emergency descent.
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The flight crew should extend the speed brakes at low flight levels to avoid the activation of the angle of attack protection.
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The MORA displayed on ND is the lowest MORA value within a radius of 40 NM around the aircraft.
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If the cabin altitude goes below 14 000 ft, the flight crew must press the MASK MAN ON pb.
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The TCAS mode selector must remain on the TA position.
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The rate of descent is approximately 5 000 ft/min when in IDLE thrust, high speed, and with speed brake extended.
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Study Notes
Fire and Smoke Protection System
- The system detects fire and overheat in engines and APU
- It detects smoke in cargo compartments, lavatories, and avionics bay
- The system extinguishes fires in cargo compartments, engines, APU, and lavatories
Additional Safety Measures
- Portable fire extinguishers are provided in the cockpit
- Portable fire extinguishers are also provided in cabin areas
Emergency Descent Procedure
- Initiate emergency descent if cabin altitude and rate of climb are excessive and not controllable, or for any other urgent reason.
- Perform emergency descent in two steps:
- First step: Apply memory items
- Second step: Perform read-&-do procedure (ECAM or QRH)
Monitoring and Adjusting
- During first step, PM monitors FMA to ensure correct descent establishment.
- During second step, PF adjusts settings.
- Use of AP and A/THR is highly recommended for emergency descent.
High-Altitude Descent
- Extend speed brakes at high flight levels to avoid angle of attack protection activation.
- Monitor VLS to avoid AP disconnection and speed brake retraction.
Descent Rate and Time
- Rate of descent is approximately 7 000 ft/min with speed brake extended and IDLE thrust.
- Descent from FL 390 to FL 100 takes approximately 4 min and 40 NM.
MORA Display
- MORA displayed on ND is the highest MORA value within a 40 NM radius around the aircraft.
Suspecting Structural Damage
- Suspect structural damage if loud bang or high cabin vertical speed is experienced.
- In case of suspected structural damage:
- Set SPEED/MACH pb to SPEED to prevent speed increase or reduce speed.
- Carefully use speed brakes to avoid additional stress on aircraft structure.
Cabin Altitude Management
- Press MASK MAN ON pb if cabin altitude exceeds 14 000 ft.
- Press MASK MAN ON pb before cabin altitude reaches 14 000 ft if it's obvious it will exceed that altitude.
TCAS Mode Selector
- TCAS mode selector must remain on TA/RA position.
- Avoidance of collision has priority, even if it requires temporary interruption of descent maneuver.
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Description
This quiz covers the fire and smoke protection system in aircraft, including detection and extinguishing systems for engines, cargo compartments, and other areas.
