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-   -   Air Canada plane from Halifax slides off runway in foggy Toronto (https://www.pprune.org/rumours-news/591441-air-canada-plane-halifax-slides-off-runway-foggy-toronto.html)

cossack 26th Feb 2017 18:22


Originally Posted by C10mmy (Post 9688335)
Surely their choice of runway is questionable given the wx conditions. No precision approach avavilable to 15R, no centre line lights, must have been right on minimum wx to make an approach.

15R has a Cat 1 ILS. Did anyone miss the approach due to the weather? If not, the runway/approach choice is suitable. Thunderstorm activity may have precluded using other approaches.

[sarcasm]Sure you can have a long runway but you'll have to fly through a thunderstorm to get there.[/sarcasm]

Yes there was a hint of sarcasm in my previous post. Its hard enough trying to keep the runways clear during a snow event when we're still expected to push an hourly arrival rate in the 30s. Scraping compacted snow off a smooth runway/taxiway is almost impossible while you are still trying to operate the airport. Braking reports are usually less than favourable on a freshly cleaned runway. Even if you pre-treat, snow will get compacted into the grooves leaving ice patches all over and making the surface unusable. Whose fault will that be?

cossack 27th Feb 2017 01:43


Originally Posted by gasbag1 (Post 9688951)
15R is rarely used however the 2 flat main gear tires will certainly take you for a ride. By what means were the 2 main tires deflated will tell us a great deal of the why.

Does it matter how often it is used? If the weather or condition of other runways require that its used, its used. Its not used often because of the limited capacity a configuration using 15R (and probably 15L) offer. The 15s tend to be used in poor weather with contaminated runways forcing us there with only a 15kt crosswind.

Kewbick 27th Feb 2017 02:38

That is exactly what I was thinking.. Surely a radar vectored 15R ILS with current (now) wind, WX (CIG and VIS) and RWY SFC conditions with a braking factor thrown in, no fries, were transmitted prior to landing.

Oh well..perhaps a grooved runway surface is coming to an extremely expensive airport near to you soon..by October 2017?..

alph2z 1st Mar 2017 18:03

Quite a few unusual turns and speed increases to final. May have been cleared to 24 (RL) prior to runway change to 15R.

https://flightaware.com/live/flight/...045Z/CYHZ/CYYZ

EDIT: I wonder why there's no data below 1000'. Also

https://www.flightradar24.com/data/f...ac623/#c90599e

DaveReidUK 1st Mar 2017 19:03


Originally Posted by alph2z (Post 9692412)
I wonder why there's no data below 1000'.

There is.

You need to adjust the reported height readouts to take account of the prevailing QNH and Pearson's elevation in order to derive heights AAL.

cossack 1st Mar 2017 19:15

The right and left turns after the hold look like sequencing turns to me. The RNAV STAR normally brings aircraft to the downwind abeam the field where the turn to the NW was made. I don't think this flight was ever going to land on 24R, but I wasn't there. Upper winds are generally from the SW.

What this image does show is the location of the weather which looks bad enough to preclude arrivals/departures from/to the west hence the use of the 15s. The only CATIII runways are 05 and 06L so the weather to the west was stopping aircraft from using them. But the weather was still good enough for aircraft to complete a CATI approach to both of the 15s.

OD100 3rd Mar 2017 03:09

Why no thrust reversers??


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