Office of Aviation Safety Thrust Reversers. 2 Inadvertent Reverser Stowage Captain decided to reject...
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Transcript of Office of Aviation Safety Thrust Reversers. 2 Inadvertent Reverser Stowage Captain decided to reject...
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Inadvertent Reverser StowageInadvertent Reverser Stowage
• Captain decided to reject the takeoff• Reversers deployed• Damage from tire debris resulted in
reverser stowage• Captain did not initially recognize
reverser stowage
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Thrust Reverser Cues Thrust Reverser Cues
• Minimal visual cues, no aural cues• Engines producing forward thrust
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Thrust Reverser Cues Thrust Reverser Cues• Three small annunciator lights located on each pilot’s
side of forward glareshield• TR DEPLOY light extinguished immediately
TR DEPLOY
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Thrust Reverser Cues Thrust Reverser Cues• Three small annunciator lights located on each pilot’s
side of forward glareshield• TR DEPLOY light extinguished immediately• TR UNLOCK light on during transit
TR ARM TR UNLOCK
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Thrust Reverser Cues Thrust Reverser Cues• Three small annunciator lights located on each pilot’s
side of forward glareshield• TR DEPLOY light extinguished immediately• TR UNLOCK light on during transit• TR ARM light flashed momentarily then extinguished
TR ARM TR UNLOCK
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Thrust Reverser Cues Thrust Reverser Cues
• Critical decision based on lack of lights
• 70 similar lights located in area• Reverse thrust lever position did not
match thrust condition• Lack of lever movement• No tactile cue of emergency
condition
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Thrust Reverser Cues Thrust Reverser Cues
• Reverse lever back but commanding forward thrust
• Counterintuitive action required during a rejected takeoff
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Training: Inadvertent StowageTraining: Inadvertent Stowage
• Pilots normally trained in landing scenario
• Inadvertent reverser stowage rarely demonstrated during takeoff scenario