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Old 18th Jan 2013, 20:34
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safetypee
 
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Reducing the threat

Like most aspects in flight safety no single intervention will assure it, thus a range of solutions is required.

There is a good overview in European Action Plan for the Prevention of Runway Excursions; however, this places significant responsibility on the operator and lacks detail to aid a consistent approach. Operational aspects are described in App E and the manufactures’ and regulators’ in F - H.

… automation dependency might be a factor in overruns …
Use of autobrake removes opportunity for pilots to gain a feel for the brake effectiveness for the amount of brake applied (pedal force / angle); this is further complicated with use of thrust reverse which might provide the majority of the demanded deceleration. Lacking of this type of experience may result in deducing a brake failure when reverse is cancelled, or not appreciating how close to a safety boundary an operation is.

There is potential for pilots to rely on automated distance calculations, thus overlooking the very necessary judgement on the variable accuracy of significant factors such as braking action and wind information.
Similarly, new alerting devices for long landings or reducing distance available after touchdown may provide a false sense of security. Generally these are retrospective; the warning may be too late to take meaningful action.
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