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-   -   Air Canada non go-around at SFO (https://www.pprune.org/rumours-news/601042-air-canada-non-go-around-sfo.html)

llondel 24th Oct 2017 05:21

Air Canada non go-around at SFO
 
This one just came up on the local news feed.


Federal Aviation Administration officials are investigating an incident at San Francisco International Airport involving an Air Canada plane.
The incident occurred Sunday night when Air Canada flight 781, an Airbus A320, wan preparing to land at SFO.
FAA spokesman Ian Gregor said air traffic control cleared the flight to land on Runway 28R. The Air Canada crew acknowledged the instruction when they were about 6 miles away from the airport, Gregor said.
"The tower controller subsequently instructed the Air Canada crew multiple times to execute a go-around because he was not certain that a preceding arrival would be completely clear of the runway before the Air Canada jet reached the runway threshold," Gregor said, adding the crew onboard the plan did not acknowledge any of the controller's instructions.

A supervisor then resorted to using a red light gun to alert the Air Canada flight to go around. Gregor said flashing a light gun is standard protocol when an air crew is not responding to radio instructions.
Air Canada flight 781 landed on Runway 284 at 9:26 p.m. The Air Canada crew after landing told the tower they had a radio problem, according to Gregor.
"A radar replay showed the preceding arrival was in fact clear of the runway when Air Canada landed," Gregor said.


atakacs 24th Oct 2017 05:57

Wow... That's a nasty one. Obviously CVR were not preserved?

fox niner 24th Oct 2017 05:58

Air canada, SFO, 28R, go-around...
I thought here we go again, somebody who doesn’t regularly read pprune posts an old new thread about something that has happened months ago.
But no! This is Air Canada again, on the same runway, same airport, same same same doing something they shouldn’t have.
What are the chances of that happening?

Chesty Morgan 24th Oct 2017 06:02

Hold on, who's in command of the aircraft? ATC or the commander? ATC only issue requests...

India Four Two 24th Oct 2017 06:46

ATC recording here:

http://archive-server.liveatc.net/ks...2017-0400Z.mp3

AC781 is cleared to land at 21.41. The first go-around is at 23.46.

This kind of incident is bound to happen occasionally if aircraft are being cleared to land before the aircraft ahead has cleared the runway.

DaveReidUK 24th Oct 2017 07:46

The enthusiast-sourced ADS-B feed from SFO is pretty patchy and (as with last time around) the ACA A320 was a very early aircraft without GPS.

Notwithstanding that, it looks like the landing sequence was:

Southwest 3117 (28R)
Hawaiian 12 (28L)
Air Canada 781 (28R)

Again, subject to confirmation, it appears that the SWA 737-700 used the entire length of 28R before turning off at the far end. At the Bridge, it appeared to be about 1:20 ahead of the ACA (subject to the above caveats re the A320's ADS-B).

787PIC 24th Oct 2017 07:53

Not good!
Going NORDO after landing clearance is issued is very sloppy piloting. Even if the radio quits, you have two other radios. In a busy environment like SFO, if I don't hear anything for more than 30 seconds, I do a radio check!
I am sure they did not ignore the instructions deliberately, but c'mon fellas, were you trying to outdo your buddy and land on top of another aircraft? :)

BRE 24th Oct 2017 07:54


Originally Posted by DaveReidUK (Post 9934775)
The enthusiast-sourced ADS-B feed from SFO is pretty patchy and (as with last time around) the ACA A320 was a very early aircraft without GPS.

Is not having GPS significant to the event?

And don't majors usually buy the enhancement package if they want to hold on to their older jets at all?

DaveReidUK 24th Oct 2017 08:11


Originally Posted by BRE (Post 9934784)
Is not having GPS significant to the event?

Not at all.

It just makes working out what happened without access to the FDR and radar tapes more difficult for PPRuNers. :O

jmvdb22 24th Oct 2017 08:25


Originally Posted by Chesty Morgan (Post 9934696)
Hold on, who's in command of the aircraft? ATC or the commander? ATC only issue requests...

Having read just a few of your comments on here I am seriously doubting if you are here to contribute to any discussion or just here to troll the :mad: out of everyone

Reverserbucket 24th Oct 2017 08:28

I believe that some of what you see on FR24 is EHS Mode S in any event; a number or our fleet aren't ADS-B equipped but you still see them on FR24.

Capn Bloggs 24th Oct 2017 09:01


Even if the radio quits, you have two other radios.
One on 121.5 and the other on ACARS DATA? :{

GMC1500 24th Oct 2017 09:06

showing once again that they are the finest in the land.

ManaAdaSystem 24th Oct 2017 09:06

If they did have a radio failure, I can understand the decision to land in visual conditions. A go around in busy airspace without communication is no fun.
If they faked it, it was a very unprofessional and stupid decision, but why on earth would they do that?

Landflap 24th Oct 2017 09:23

CHESTY trolling as usual. I recall, final approach into LHR, we were catching up the one ahead. Did all I could but still gaining, I prepared for a Go Around. ATC got in first and said "a/c call sign, Go Around, Go Around, I say again, Go Around". Didn't sound like a 'request' to me Chesty !

Neptune262 24th Oct 2017 09:34


Originally Posted by India Four Two (Post 9934724)
ATC recording here:

http://archive-server.liveatc.net/ks...2017-0400Z.mp3

AC781 is cleared to land at 21.41. The first go-around is at 23.46.

This kind of incident is bound to happen occasionally if aircraft are being cleared to land before the aircraft ahead has cleared the runway.

Exactly :ok: about the way that the USA ATCOs issue / treat a landing clearance!

HEATHROW DIRECTOR 24th Oct 2017 09:47

Landflap. I agree. I have always had respect for Chesty but disagree that ATC issues "requests"!! We all know that the pilot has the ultimate responsibility but ATC but ATC instructions are mandatory and if the pilot thinks otherwise then he'll be called to explain his actions later. Long ago I was up front on a 747 landing on 09L at Heathrow. We left the runway and ATC told us to take the "second left........" The captain said to the FO "take the first, it's easier". I suggested doing what ATC said as the crew didn't know if ATC might know something the crew didn't - like maybe a broken light fitting which could have burst tyres. They took the second intersection....

pax britanica 24th Oct 2017 09:54

Only a humble SLF observation and I appreciate there is such a thing as a conditional clearance but giving someone clearance to land when the runway is occupied is typical of todays habits of using words with no meanings or ignoring the meaning of the words you actually use..

Surely 'You are cleared to land' means just that surely-ie there is nothing in front of you in the air or on the ground, no one is going to taxi or drive a vehicle across the runway -the way ahead is CLEAR. If any of those things are not true then you cannot be CLEAR to land for the simple reason that you are not , there are obstacles in the way so the whole issue becomes pretty pointless and an opening to have an accident at some point

ManaAdaSystem 24th Oct 2017 10:06

Some airports take it a step forward, they give land behind clearances.
In this case: Radio failure or no radio failure? That’s the question.

Logging on to ACARS when on 6 miles final? I don’t think so.

Basil 24th Oct 2017 10:08

pax, I agree.
In the RAF we were sometimes "Clear land - one on." but that was with the intention that two aircraft would simultaneously occupy the runway. In civil aviation that is not usually the case.


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