E145/E135, Chicago O’Hare USA, 2011

E145/E135, Chicago O’Hare USA, 2011

Summary

On 8 August 2011, an Embraer 145 was given take off clearance from runway 32L at O Hare in day VMC without the controller making the required check for potentially conflicting arrivals to runway 09R which pass over the runway. When the controller realised that the departing aircraft would conflict with an Embraer 135 approaching 09R, he told his aircraft to  stay low and the runway 09R controller to send his aircraft around. Radar data indicated that the 135 on go around had crossed runway 32L about 125 feet above and just over 100 metres in front of the departing 145.

Description

On 8 August 2011, an Embraer ERJ135 being operated by Chautauqua Airlines on a scheduled passenger flight from La Crosse, WI to Chicago and going around in day Visual Meteorological Conditions (VMC) off an approach to runway 09R was almost in collision with an Embraer ERJ145 being operated by Trans States Airlines on a scheduled passenger flight from Chicago to Moline IL which was taking off from runway 32L.

Investigation

The National Transportation Safety Board (USA) (NTSB) carried out an Investigation. It was established that day VMC had prevailed at the time of the event with overall traffic levels described as light, occasionally moderate. It was noted that the extended centreline of runway 09 intersects runway 32L. It was noted that one of the qualified controllers involved, the TWR North Controller, was acting as an OJTI with a trainee on a skill check operating the position.

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