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JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

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411–420 of 515 posts

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#411
post #313

Earlier quoted context omitted.

Is "line up and wait" really the new approved terminology? Way back when I was a PP student, it was "taxi into position runway XX and hold. Acknowledge hold." Line up and wait sounds like something you tell preschoolers to do :-)

Line up and wait (meaning, on the runway, prior to actual takeoff clearance) is very common during busy periods. This is in America.

"Line up and wait" unambiguously means to do so on the runway.

https://www.faa.gov/airports/runway_safety/resources/luaw

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#412
post #382

Earlier quoted context omitted.

Taking simple steps to be more aware of your surroundings when something dangerous is happening seems self-evident to me. Please let me know what flights are you taking and when so that I can make sure I'm not on the same plane.

Most people don’t read the safety card or pay attention to the safety briefing either.

My rule of thumb is "know where the exits are", and "know where the life jackets are" if flying over water. Those are the bits that differ the most plane to plane -- seatbelts are consistent, clear paths during takeoff and landing are consistent, oxygen masks are consistent, but I want to know where the exits are and how to float.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#413

Earlier quoted context omitted.

The video shows passengers sitting calmly in a burning aircraft quickly filling with smoke, I presume awaiting further instruction, which may or may not have come from the crew. The scene almost defies belief.

For a 20 second clip. It is unclear if the plane is stopped at that start of the clip, and the attendants have to assess which exits aren’t on fire, arm and deploy the safe ones, and then issue orders. Until then, staying calm and out of their way is probably good. They got nearly 400 people out with only 14 minor injuries.

A person in the back who appears to be a crew is standing with her seatbelt unbuckled, so the aircraft is probably stopped. The behavior of the passengers also indicates that it was after landing.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#414
post #226
post #213

Earlier quoted context omitted.

All of these ATC feeds are from SDR stations close by that monitor the same frequencies. Your local airport sounds better because someone has a better SDR rig to receive it. Generally the audio is crystal clear in the cockpit and on the ground — it’s just that the SDR stations don’t have as good antennae as the real systems do.

I’ve always wondered about that. When I hear recordings online they’re often so bad I wonder how there aren’t more issues. That explains it.

Yep, it's a line-of-sight transmission, so in a way the aircraft has the advantage of being a really, really tall antenna.

The volunteers running the feeds around YYZ are at the airport, IIRC. I'm in Halifax now, and the (single) YHZ feeder has had a really hard time finding a new place to set up after he lost his previous location.

There's a "feed setups" thread (or a whole forum) in the LiveATC forums, it's interesting to see how big or small the feeders' setups are!

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#415
post #169

Could the accident be linked to the clarity of radio instructions? I saw a discussion suggesting the DH aircraft might have been unsure about the correct runway to use, C1 or C5. My aim isn't to critique the English proficiency of non-native speakers, especially those from non-Proto-Indo-European linguistic backgrounds. As a non-native English speaker myself, I understand the challenges. However, I found it trully ha…

I learned to fly at St Hubert Airport (CYHU) outside of Montreal, where ATC spoke English to English-speaking pilots and French to French-speaking pilots. I lived in Montreal so I knew enough French to get by, but I could never make out more than a few words at the pace and quality of ATC transmissions plus C152 engine noise -- even in a controlled airspace, not overhearing other planes' instructions is a strange feeling.

But those French-speaking pilots probably heard their own instructions clearer than if they'd been in English.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#416
post #388

Earlier quoted context omitted.

Six minutes is a decent response time for ARFF in a large, active airport with no advance warning. They can't just drive straight to the incident site; instead they have to wait for ground clearance to enter any taxiways or runways because there are still other aircraft moving around.

The rule in the USA (set by FAA) is maximum 3 minutes, preferably 2, or they deny your certification and you don't get to be an airport. So I would not characterize 6 minutes as decent. In fact, it's pretty damn terrible. Source: 14 CFR 139.319: Within 3 minutes from the time of the alarm, at least one required aircraft rescue and firefighting vehicle must reach the midpoint of the farthest runway serving air carrier…

Note that that section applies to FAR 139.319 (h)(1)(ii) which is “When requested by the Administrator, demonstrate compliance with the response requirements specified in this section.”

I read that to mean “in a planned test, must have a 3 minute alarm to application time”. That means it’s the intended performance target but a 3m30s response to an actual crash will maximally get a request from the Administrator to demonstrate a 3:00 time, rather than a revocation or lowering of ARFF Index of the airport.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#417

Earlier quoted context omitted.

For a 20 second clip. It is unclear if the plane is stopped at that start of the clip, and the attendants have to assess which exits aren’t on fire, arm and deploy the safe ones, and then issue orders. Until then, staying calm and out of their way is probably good. They got nearly 400 people out with only 14 minor injuries.

A person in the back who appears to be a crew is standing with her seatbelt unbuckled, so the aircraft is probably stopped. The behavior of the passengers also indicates that it was after landing.

[flagged]

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#418

Earlier quoted context omitted.

Have you driven in SF?

Mate, have you driven in Mumbai? Hell, even in Rome? SF is nothing .

So clearly self driving cars are completely useless because they cannot handle Mumbai traffic.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#419
post #313

Earlier quoted context omitted.

Line up and wait (meaning, on the runway, prior to actual takeoff clearance) is very common during busy periods. This is in America.

I've never seen planes line up and wait on the runway since there is only supposed to be one on there at any time.

The “line up” in this case refers to an instruction given to a single airplane to position itself on the runway in preparation for departure (as in “line up with the departure runway heading”).

It is not “hey, multiple airplanes get yourself into a queue on the runway”.

Re: JAL A359 at Tokyo collided with Coast Guard DH8C on runway and burst into flames

#420
post #281
post #169

Could the accident be linked to the clarity of radio instructions? I saw a discussion suggesting the DH aircraft might have been unsure about the correct runway to use, C1 or C5. My aim isn't to critique the English proficiency of non-native speakers, especially those from non-Proto-Indo-European linguistic backgrounds. As a non-native English speaker myself, I understand the challenges. However, I found it trully ha…

There is a ton of static too, why is that still tolerated?

That static is an artifact of the recording device being on the ground, likely without great line of sight to the transmitting antenna which is also near the ground.

Planes to ATC and planes to other planes don’t really have line of sight issues.

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