Re: [SystemSafety] Chicago controller halts Delta jet's near-miss on takeoff: '1328, stop, stop stop!'

From: Smith, Brian E. (ARC-TH) < >
Date: Thu, 18 Jun 2015 18:04:49 +0000


I think they call that ≥expectation bias."

On 6/18/15, 11:03 AM, "Andy Ashworth" <andy_at_xxxxxx

>Use of the phonetic alphabet and the associated numeral pronunciations
>(e.g.
>zero, fife, niner, etc) should have reduced the likelihood of ambiguity
>to a
>minimum. However, these in themselves don't address the problem of similar
>call-signs. Despite there being similarity in the area of the numerals, I
>note that the two airlines were different, and it would be extremely
>difficult to confuse "South Western" and "United". I wonder if this is a
>case where a pilot heard what he wanted to hear for one reason or another,
>and missed the initial part of the call-sign, i.e. the airline name.
>
>Andy
>
>-----Original Message-----
>From: systemsafety-bounces_at_xxxxxx >[mailto:systemsafety-bounces_at_xxxxxx >Peter Wilkinson
>Sent: June 18, 2015 2:00 PM
>To: Smith, Brian E. (ARC-TH); Simon Whiteley;
>systemsafety_at_xxxxxx >Subject: Re: [SystemSafety] Chicago controller halts Delta jet's near-miss
>on takeoff: '1328, stop, stop stop!'
>
>I wonder if it is rarely a Black Swan event. If these are defined (at
>least
>in part) as unforeseen events - I don't think it qualifies as a Black
>Swan.
>As Peter has pointed out - a known problem regards Pete w
>
>-----Original Message-----
>From: systemsafety-bounces_at_xxxxxx >[mailto:systemsafety-bounces_at_xxxxxx >Smith, Brian E. (ARC-TH)
>Sent: Friday, 19 June 2015 3:44 AM
>To: Simon Whiteley; systemsafety_at_xxxxxx >Subject: Re: [SystemSafety] Chicago controller halts Delta jet's near-miss
>on takeoff: '1328, stop, stop stop!'
>
>As observed by Peter, this may have been caused by confusion between the
>Call Signs of the aircraft. One of those rare, Black Swan events.
>
>From:
>http://www.chicagotribune.com/news/local/breaking/ct-midway-airport-close-
>c
>all-20150617-story.html#
>
>Before the incident, a Midway ground controller had notified both pilots
>about the similar and potentially confusing flight numbers of the
> [comment: good job!]
>two planes waiting to depart, and he advised the pilots to listen
>carefully
>to radio calls, according to tapes of the incident, which are on
>http://www.LiveATC.net
>
>On the transmission, the tower controller is heard clearing Southwest
>Flight
>3828 for takeoff. But when the Southwest pilot radios back confirmation,
>his
>voice is obscured, or "stepped on," by a dual transmission, apparently
>from
>Delta Flight 1328. During a dual transmission, each pilot hears only some
>of
>what is being communicated.
>
>A second dual transmission then occurs, and seconds later, as the
>Southwest
>plane is accelerating down runway 31 Center, the Delta plane is also on a
>takeoff roll on intersecting runway 4 Right, sources said.
>
>A controller abruptly yells, "Stop, stop, stop, stop!" A pilot says,
>"Aborting," and another pilot announces, "SWA stopping."
>
>
>
>
>
>
>On 6/18/15, 10:27 AM, "Simon Whiteley" <simon_at_xxxxxx >wrote:
>
>>http://www.nola.com/business/index.ssf/2015/06/chicago_controller_preve
>>nts
>>_de.html
>>
>>FYI
>>
>>- Two passenger jets began to take off at the same time on intersecting
>>runways at Chicago's Midway International Airport, prompting a
>>controller to shout over the radio for one of the pilots to halt to
>>avoid a collision.
>>
>>
>>
>>Wow! Just wow!
>>-SPPW
>>
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systemsafety_at_xxxxxx Received on Thu Jun 18 2015 - 20:04:58 CEST

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