WHEEL AND LANDING GEAR EMERGENCIES

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WHEEL AND LANDING GEAR EMERGENCIES

• Robert Thompson
• Randy Krause

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HOT BRAKES
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Boeing Dash 80 Brake Test1954
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Dash 80 Video
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OBJECTIVES

• Causes of Hot Brakes
• Hazards
• Approaching the aircraft
• Dealing with the emergency
• Extinguishing agents

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Causes of Hot Brakes

• Aircraft weight
• Landing speeds
• Extraordinary braking
• Refused take- off (RTO)

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Hazards

• Tire failure
• Fusible plugs
• Disintegration of wheel assembly
• Danger zone ( Approx. 300 feet )

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Approaching the Aircraft

• Establish communication with pilot
• Approach from front or aft
• Type of aircraft
• Observe tire condition
• Is there smoke or fire ?

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EICAS - Flight Display(Engine Indication Crew
Alert System)
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What are we going to do ?

• Is there fire?
• Do we need to evacuate the aircraft?
• Can the aircraft taxi?
• What are my exposures?

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Extinguishing Agents

• Dry chemical
• Dry powder
• Foam
• Water
• Dual agent

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A New Way of Thinking
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Cera-Metalic/Composite Brakes

• All new Aircraft have them
• Most older Aircraft have changed to them
• Will withstand higher temps than steel by
  absorbing and dissipating heat better

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Boeing Flight Test

• Minor temperatures - air or water cool
• Extreme temperatures - cool with water
• If Fusible Plug fails - temperatures are extreme

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Airborne Command Post RTO Edwards AFB 1973
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Command Post Video
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Water

• When using water
• Approx. 1500 gal. per wheel set
• Use hand line / snozzle / turret
• Cool entire wheel and brake
• Be aggressive!

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Fire

• If fire is present
• Small tire fire - use water
• Large fire - treat as any aircraft fire
• attack with large amounts of water if fuel
  cells are compromised use foam!

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Steel Brakes

• If tires have deflated
• Brakes are already warped!
• Water will not matter at this point

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LANDING GEAR EMERGENCIES AND TIRE FAILURE
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NOSE GEAR

• Tire Failure
• Gear Damage
• Gear not down and locked in place
• Possible Belly Landing
• WATCH OUT!

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MAIN GEAR

• Give plenty of room!
• Set up on good gear side

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9/23/03 JFK
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PINNING OF GEAR

• Military Fighters
• Have the right pins for Aircraft involved
• Know where they go
• Check with the Flight Crew

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747-400 ER Brake TestEdwards AFB 2002
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747-400 ER Video
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Questions?