How a collection of minor factors caused 747 overrun in Halifax

A Boeing 747-400F overran the runway while landing at Halifax/Stanfield International in November 2018 because of late braking from the crew, a recent report by the Canadian Transportation Safety Board has found. 

Boeing 747 overrun
All photos Transportation Safety Board of Canada

A combination of minor factors – including unclear NOTAM presentation, a higher approach speed than necessary, a tailwind and the drag devices stowing after touchdown – when combined with the belated braking action caused the Sky Lease Cargo-owned jumbo to leave the runway while travelling at 77kts. 

N908AR (c/n 28026) came to a stop 270m (885ft) past the end after striking the approach lights and localiser antenna array. The number two engine detached from its pylon during the impact sequence and came to rest under the left horizontal stabiliser, causing a fire in the tail section following the impact. 

Boeing 747 overrun

All three crew members received minor injuries and were taken to the hospital. The passenger was not hurt. 

The flight 

The aircraft was conducting flight 4854 from Chicago/O’Hare to Halifax/Stanfield which formed part of a larger multi-leg route connecting the US city with the final destination of Changsha/Huanghua in China. 

mapoverrun
Source: GreatCircleMapper

The first sector was …

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