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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)

Jet Jockey A4 25th Oct 2017 07:55


Originally Posted by krautland (Post 9935906)
I presume briefly switching off the runway lights after having denied them landing clearance multiple times would be unacceptable?

Actually that would also be a very good idea.

Perhaps flashing them ON and OFF several times to get their attention and then turning them OFF for a prolonged time would work.

tescoapp 25th Oct 2017 08:19

light board next to the PAPI's would be better...

It wouldn't be to long before flares set the airfield grass on fire during a dry period.

golfyankeesierra 25th Oct 2017 09:16


BTW, I can’t believe someone with Atc is so naive to assume a pilot would see a red light signal at an International airport. Must be a desk-jockey.
CYA. What else could they do?
A call on 121.5 is a better shot I guess. But it’s used here as an argument and I think it’s very weak.

EGPFlyer 25th Oct 2017 09:53


Originally Posted by tescoapp (Post 9935841)
For the SLF reading there is a huge difference between they way they do things in the USA and how most of the rest of the world works.

In Europe they won't give a landing clearance until much later on, in fact until the runway is clear. We do have a "land after" call in the UK but generally they don't use it with commercial aircraft.

Not true. As stated a few posts back, in CDG they give you landing clearance when you check in with tower, even if there are aircraft ahead of you. It makes sense at places that have landing only runways (AMS is the other where it would probably work well but they don’t do it yet)

tescoapp 25th Oct 2017 10:33

I stand corrected, thankfully I don't have to operate into CDG and their screwed up mixture of French and English.

But hey if a load of pilots don't know what the other aircraft are doing most of the time there is no issue with landing clearances being issued without the runway being safe.

aterpster 25th Oct 2017 13:00

Sounds like they had the wrong frequency dialed in for the tower but then switched to the correct ground control frequency after landing. Does anyone know whether the crew checked on with the tower?

MATELO 25th Oct 2017 13:29


Originally Posted by Jet Jockey A4 (Post 9935889)
Not to excuse the Air Canada pilots in this incident but the tower using the light to tell them not too land was perhaps a long shot in this instance.

A long shot yes, but in an inquiry, the tower would be safe in the knowledge they tried every available means at hand.

underfire 25th Oct 2017 14:21


Does anyone know whether the crew checked on with the tower?
There was a previous post that stated the crew called tower once on the ground.

Probably the same crew as the last incident. This time, they were so happy to have actually found an actual runway, they missed the 8 calls to GA from tower.


Perhaps flashing them ON and OFF several times to get their attention and then turning them OFF for a prolonged time would work.
This is AC we are talking about here, if you turned off the lights, they would just land on the taxiway....

Siblini 25th Oct 2017 14:35

How where they able to communicate to tower once they were on the ground so quickly? Did they realize they had a radio failure on roll-out and then decide to use the second radio?

The pilot monitoring could surely switch the radios even on short final in visual conditions.

I'm interested to see what comes from this.

Greek God 25th Oct 2017 14:36

So.... eight calls to GA and still they landed safely with the previous vacated. Little premature on the GA instruction maybe? What was wrong with continue expect late landing clearance. I can normally tell whether a runway I'm about to land on is clear or not in VFR
Heard one the other day where tower instructed a GA due to a plastic bag blowing across the runway - really?

underfire 25th Oct 2017 14:49


So.... eight calls to GA and still they landed safely with the previous vacated. Little premature on the GA instruction maybe?
Tower said GA. Tower did not give a reason.

The aircraft had no idea why they were being told to GA.

What if it was FOD from the previous landing?

EDIT: I just listened to the ATC recording again. I think I figured it out, not once in the 8 times tower said GA, was there a "please".....

after all ATC only issues 'requests'....:\

FAA investigates another Air Canada landing mix-up at SFO

The official Air Canada twitter account initially sent a tweet to this reporter after a story about the incident first appeared online, appearing confused about what had happened.

AC twitter reads PPRUNE!

Sailvi767 25th Oct 2017 15:25


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

Which the aircraft commander is expected to comply with unless he has a greater emergency.

tescoapp 25th Oct 2017 15:43

Nope if you say expedite and I am already at my max SOP speed I ain't going any faster.

underfire 25th Oct 2017 16:34


Nope if you say expedite and I am already at my max SOP speed I ain't going any faster.
I saw a 744 get put back in the pattern for refusing to speed up.

JW411 25th Oct 2017 17:00

Which reminds me of the Sin Bin at ORD.

aterpster 25th Oct 2017 17:23

(b) is particularly pertinent to this case:


§ 91.123 Compliance with ATC clearances and instructions.

(a) When an ATC clearance has been obtained, no pilot in command may deviate from that clearance unless an amended clearance is obtained, an emergency exists, or the deviation is in response to a traffic alert and collision avoidance system resolution advisory. However, except in Class A airspace, a pilot may cancel an IFR flight plan if the operation is being conducted in VFR weather conditions. When a pilot is uncertain of an ATC clearance, that pilot shall immediately request clarification from ATC.

(b) Except in an emergency, no person may operate an aircraft contrary to an ATC instruction in an area in which air traffic control is exercised.

(c) Each pilot in command who, in an emergency, or in response to a traffic alert and collision avoidance system resolution advisory, deviates from an ATC clearance or instruction shall notify ATC of that deviation as soon as possible.

(d) Each pilot in command who (though not deviating from a rule of this subpart) is given priority by ATC in an emergency, shall submit a detailed report of that emergency within 48 hours to the manager of that ATC facility, if requested by ATC.

(e) Unless otherwise authorized by ATC, no person operating an aircraft may operate that aircraft according to any clearance or instruction that has been issued to the pilot of another aircraft for radar air traffic control purposes.

testpanel 25th Oct 2017 17:46


When an ATC clearance has been obtained, no pilot in command may deviate from that clearance unless an amended clearance is obtained, an emergency exists, or the deviation is in response to a traffic alert and collision avoidance system resolution advisory.
Yeah Yeah Yeah....

Looks good on paper, sure some expensive people in some office thought it all through:ugh:

But,
they are no pilots, with real experience.

Try following the above quote somewhere over Africa...

Or even over europe or the usa, if i see a cb in front of me, and all the lcc`s and others asking for different levels, I don´t declare emergency, if the freq. is too busy...........

i will just turn! and tell/explain atc later what i am doing.

Too much abuse of RT nowadays....

TP

gasbag1 25th Oct 2017 17:49

Obviously these 2 pilots were on the proper frequency to receive their landing clearance initially, then either a transceiver failed, the #1 transceiver was changed to a incorrect freq. or the #1 transceiver volume was turned off.

If a transceiver was changed to a improper frequency most pilots would realize they might be on the wrong frequency with either departure/approach type of instructions or radio silence on a busy Tower Frequency. Then again these guys had another working transceiver that was most likely on a company frequency.

Another example of poor awareness of another AC crew.

lomapaseo 25th Oct 2017 18:03

I'm bothered by hints in the discussion that there are so many escape paths without obvious correctable faults that could lead to such a landing accident.

If I imagine that the next similar combination will lead to an accident with loss of life, I ask myself what corrective actions would we seek?

would it be

"flashing red strobe lights or flares on the runway approach surface?

commanded ATC activation of lights or horn in the cockpit?

mandatory pilot fault with consequences ?

others?

tescoapp 25th Oct 2017 19:11


When an ATC clearance has been obtained, no pilot in command may deviate from that clearance
the key is obtained and acknowledged.

If a clearance is given and then a reply of "unable " is given. Then its not been obtained.

ATC have zero clue if I have Anti skid in the mel or any of the other items which can make high speed taxing interesting.

To be honest on a roll out at 90 knts getting told to expedite my priority is the aviating not the communicating. I won't hit the brakes I won't reduce the power any further but I won't be increasing it until I am at 30 knts.

You can stick me in the sin bin if you like, fact is if I go off road and the accident investigation lot pull the FDR and declare I was taxing faster than the SOP's even if what happen is not my fault I will be hung drawn and quartered. Then I have a incident on my record and basically become unemployable if I wish to move company's.

Why should put my career at risk for a ATCO's screw up?


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