Delta Dumps Fuel on LAX Children

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01-14-2020, 02:48 PM

AirBear

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Delta Dumps Fuel on LAX Children

School kids suffered skin irritation. I had thought 5000AGL was used as a min fuel dump altitude unless you're in danger of augering in.

https://youtu.be/2XT5oLkNoxU

01-14-2020, 03:05 PM

AirBear

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I overlooked this thread in the Delta forum, there's more info on the link. Destination was Shanghai. The video shows them dumping fuel pretty low.

https://www.foxla.com/news/60-people...ols-in-la-area

01-14-2020, 03:28 PM

CaptainYoda

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Delta, Delta, Delta.

The Delta logo on the bottom of the 777 During the flyby is a nice touch

01-14-2020, 03:49 PM

AirBear

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VASAviation has the video up now:

https://youtu.be/mIA90evz8gs

01-14-2020, 08:41 PM

dera

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Quote:

Originally Posted by AirBear

VASAviation has the video up now:

https://youtu.be/mIA90evz8gs

Do these guys think "high speed climb approved" means they can exceed 250 below 10'000? They are at 8000' and they say they are slowing down to 280.

01-14-2020, 10:26 PM

Adlerdriver

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Quote:

Originally Posted by dera

Do these guys think "high speed climb approved" means they can exceed 250 below 10'000? They are at 8000' and they say they are slowing down to 280.

Just stop. First of all in the US, approval for a heavy a/c departure using clean speeds exceeding 250 below 10K is approved without request (FAR 91.117). Second, they declared an emergency and told ATC the speed they needed to maintain. Not sure what the deal was with the fuel jettison, but they were fine regarding airspeed.

01-14-2020, 10:26 PM

Singlecoil

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Quote:

Originally Posted by dera

Do these guys think "high speed climb approved" means they can exceed 250 below 10'000? They are at 8000' and they say they are slowing down to 280.

That’s exactly what it means. You don’t even need to ask permission if your clean maneuver speed is over 250 to maintain that speed.

01-14-2020, 11:54 PM

dera

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Quote:

Originally Posted by Adlerdriver

What's the clean speed for MTOW 777, 275 or so? That's the max they can legally do.

They were "slowing down" to 280. I stand corrected if it's over 280.

01-15-2020, 03:15 AM

Adlerdriver

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Quote:

Originally Posted by dera

What's the clean speed for MTOW 777, 275 or so? That's the max they can legally do.

They were "slowing down" to 280. I stand corrected if it's over 280.

So, seems like you're a "minutia guy". What appears to be some secret fuel jettison going on and you're getting spun up over a few knots post declaration of emergency? IDK what their clean speed is. Maybe it's 280, maybe it's less. In the 777F at MTOW it was about 270, but that's a -200 body with a -300 wing. FMC calculated clean speed was usually right at the foot and wasn't particularly comfortable if you had to turn much, so I usually bumped it up 5 knots or so. Maybe it's the same for their a/c. Or maybe the engine situation was resolved using the Captain's emergency authority and a higher speed. Whatever the situation, we don't know what speed they were flying before they declared and once they did, they communicated to ATC what they were doing (at least about their speed

01-15-2020, 06:25 AM

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captjns

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True statement regarding 91.117(d), which provides relief for speed restrictions in Class B (below the lateral limits of Class B airspace), C, D, E (below 10,000’) airspaces, Flying a fully loaded heavy, out of courtesy, I advised ATC the minimum speed to be maintained. It helps for their planning purposes when in trail behind a smaller Boeings or Airbuses in busy TMAs.