airtraffic

Author Topic: Qatar A350 Aborted Takeoff  (Read 14963 times)

Offline semperflyer797

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« Last Edit: December 16, 2015, 04:08:05 AM by semperflyer797 »



Offline GeoffSM1

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Re: Qatar A350 Aborted Takeoff
« Reply #1 on: December 18, 2015, 01:36:54 PM »
The attached mp3 includes all transmissions between the aircraft and JFK Ground, Tower (2 frequencies) and Departure. The entire proceedings lasted for over 2 hours. I'm afraid that unless I'm missing something, the aircrew didn't provide a detailed explanation as to why the take-off was aborted.  Clearly it was a warning of a situation which they were able to deal with during a very lengthy delay on a taxiway.

I think its worth repeating the link to the video here:
« Last Edit: December 19, 2015, 01:17:52 PM by GeoffSM1 »

Offline InterpreDemon

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Re: Qatar A350 Aborted Takeoff
« Reply #2 on: December 18, 2015, 03:07:34 PM »
Geoff - When you made the MP3, what was the exact time of the abort?

Maybe I can dig up some company/ramp communications.

Offline RonR

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Re: Qatar A350 Aborted Takeoff
« Reply #3 on: December 19, 2015, 12:42:03 PM »
Hey ID,

Looks like the aborted takeoff occurred at around 01:43Z on 12/11.  It happened at the 13:00 minute mark on the JFK 121115-0130Z Tower feed...

Offline InterpreDemon

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Re: Qatar A350 Aborted Takeoff
« Reply #4 on: December 19, 2015, 01:09:23 PM »
Thanks, Ron, when I get a chance I'll hack in and review the NSA tapes.

Have a nice X-Mass & NY

Offline GeoffSM1

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Re: Qatar A350 Aborted Takeoff
« Reply #5 on: December 19, 2015, 01:16:17 PM »
Thanks for supplying the requested info Ron.
I hope you can find something ID.

Seasons greetings to both of you (and everyone else on here for that matter).

Geoff
« Last Edit: December 19, 2015, 01:19:33 PM by GeoffSM1 »

Offline RonR

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Re: Qatar A350 Aborted Takeoff
« Reply #6 on: December 19, 2015, 01:37:21 PM »
No problem ID and Geoff...can't wait to hear what the NSA has to say about this  :-)

Merry Christmas to both of you too.

Ron

Offline Robert Larson

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Re: Qatar A350 Aborted Takeoff
« Reply #7 on: December 30, 2015, 01:42:11 PM »

Offline GeoffSM1

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Re: Qatar A350 Aborted Takeoff
« Reply #8 on: December 30, 2015, 06:20:23 PM »
Thanks Robert.

Offline flyflyfly

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Re: Qatar A350 Aborted Takeoff
« Reply #9 on: December 30, 2015, 07:26:43 PM »
The AOPA article (and the supposed executive comment) that the aircraft "applied full brakes all by itself" is rubbish. The A350 has no such system which automatically aborts a takeoff and applies brakes during a takeoff attempt...

The actual events and the cause were mentioned in the ppprune forums: the trigger was a database error in the Jeppesen Airport Map Database, which was loaded. Runway 22R at JFK has a displaced threshold, the database for the A350 did not properly consider this, hence indicated TORA for 22R (available runway length for takeoff) was too small. Once the aircaft accelerated beyond taxiing speed, the ECAM alerts "NAV ON TAXIWAY" and "T.O RWY TOO SHORT" were triggered. The pilots therefore elected to manually abort takeoff, since they were still far below V1.