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Turbulence incidents, reports, discussion master thread

Turbulence incidents, reports, discussion master thread

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Old Aug 27, 16, 9:23 am   -   Wikipost
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Turbulence incidents, reports, discussion master thread

DEFINITION: Aircraft turbulence (American Meteorological Society)

Irregular motion of an aircraft in flight, especially when characterized by rapid up-and-down motion, caused by a rapid variation of atmospheric wind velocities.

This can occur in cloudy areas (particularly towering cumulus and lenticular clouds) and in clear air. Turbulence is the leading cause of nonfatal passenger and flight attendant injuries. The U.S. Federal Aviation Administration (FAA) classifies aircraft turbulence as follows:

Light: Causes slight, erratic changes in altitude and/or attitude, and rhythmic bumpiness as occupants feel a slight strain against seat belts.

Moderate: Similar to light, but of greater intensity, with rapid bumps or jolts, and occupants feel a slight strain against seat belts.

Severe: Turbulence that causes large, abrupt changes in altitude and attitude, and large variations in airspeed, with the aircraft temporarily out of control. Occupants are forced violently against their seat belts and objects are tossed about, with food service and walking impossible.

Extreme: The aircraft is tossed about so violently that it is practically impossible to control, and structural damage may occur.


Incident:.AA 280 ICN - DFW on December 16 2014 local time, operated by a Boeing 777-223ER and carrying 240 passengers and 15 crew, was subjected to a prolonged period of moderate turbulence and two minute-long sessions of severe turbulence near Japan. The aircraft diverted to NRT, where four passengers and one crew member were taken to hospital for evaluation and treatment; no serious injuries were reported.

The other passengers were bussed to a local hotel, and another aircraft took them to their DFW destination today. The aircraft was taken out of service for inspection for possible damage.

(Summary by JDiver from news sources and member calexandre, who was on board.)

Originally Posted by AA spokesperson Andrea Huguely
“American Airlines Flight 280, a Boeing 777-200 from Seoul (ICN) to Dallas/Fort Worth (DFW) has diverted to Tokyo (NRT) because of turbulence during the flight. There are 240 passengers and a crew of 15.
FlyerTalk member calexandre was on board. B]Link[/B] to member calexandre's photos in cabin.

Link to in-cabin raw video footage on YouTube

Link to Dallas Morning News article

Link to CNBC article

Link to (UK Daily) Mail Online (gets it all wrong -"Boeing 747-200") but decent graphics, including map

Link to Tokyo TV 50 video and interviews with two passengers (Japanese language)

Link to weather.com video taken on flight and explanation of probable turbulence source

Link to to video off Boeing destructive 777 wing test (exceeded 153% of expected highest stresses expected)



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Old Dec 17, 14, 8:23 pm
  #61  
 
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Originally Posted by alo53 View Post
there are multiple copies of it on the youtubes now.

here is one: https://www.youtube.com/watch?v=g3rTVFB5r8E
Yikes - brings back bad memories of a Jan 1995 DL flight from LAX to DFW (yes - those good old days when Delta had a DFW hub also) - coming at the end of a long day after a transpac SQ flight - the 30 mins of extreme turbulence seemed like hours - although it wasnt as bad as this

glad everyone was ok
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Old Dec 17, 14, 9:17 pm
  #62  
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Originally Posted by Hollinger Clarke View Post
Yikes - brings back bad memories of a Jan 1995 DL flight from LAX to DFW (yes - those good old days when Delta had a DFW hub also) - coming at the end of a long day after a transpac SQ flight - the 30 mins of extreme turbulence seemed like hours - although it wasnt as bad as this

glad everyone was ok
Interesting. The worst turbulence I remember was also in approaching DFW from BTR, way back in the 80s, can't begin to remember what airline it was. I'm sure it was nothing compared to this truly scary event, but I sure remember how many Pax were screaming and crying and praying -- in English and Spanish! When we finally landed the plane erupted in applause and people were kissing the ground when they got off the plane.

Hopefully none of the injuries on this flight were severe. I've been through a lot of turbulence in both airliners and small planes, but thankfully nothing like this, and I'm in the camp of those who don't want to watch that video!

Sounds like AA did as good a job as possible dealing with everything.
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Old Dec 17, 14, 10:27 pm
  #63  
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Severe: Turbulence that causes large, abrupt changes in altitude and attitude, and large variations in airspeed, with the aircraft temporarily out of control. Occupants are forced violently against their seat belts and objects are tossed about, with food service and walking impossible.

Extreme: The aircraft is tossed about so violently that it is practically impossible to control, and structural damage may occur.
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Old Dec 18, 14, 2:26 am
  #64  
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Wirelessly posted (beckoa's BB: Mozilla/5.0 (BlackBerry; U; BlackBerry 9810; en-US) AppleWebKit/534.11+ (KHTML, like Gecko) Version/7.1.0.694 Mobile Safari/534.11+)

Wow. Saw this on the news tonight- I'd be utterly freaked out.

And thanks to the Fter onboard contributing ^ Always interesting to hear a first hand report- complete with photos.

And to think I'm booked on AA280 in April!
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Old Dec 18, 14, 7:11 am
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I haven't seen much in the way of reports on the condition of the structure of the plane. Presumably it'll undergo some thorough checks in Japan, but has anyone heard of whether the airframe took damage beyond its contents?
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Old Dec 18, 14, 7:44 am
  #66  
 
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Update on the comp question: there are 50k extra bonus miles in my account this AM, labeled "customer service bonus." Looks like AA is being proactive; I certainly haven't complained to them.

ETA: Also got full EQMs for both the aborted trip and the rescheduled.
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Old Dec 18, 14, 7:51 am
  #67  
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Originally Posted by consultant22 View Post
Yeah definitely never been in anything that bad, nor would I want to be!

I've found that the Northern Pacific consistently has bad turbulence. When I flew back from Hong Kong - DFW earlier this fall - for some reason we took a southerly route on the outskirts of a typhoon and the turbulence was bad. We had water flying and some stuff moving around, but nothing like the pictures seen here. Also had some passengers making noises and looking nervously out the window (but it was night). The biggest concern I had with that route was just how far away from land we were at the time (well south of Japan). If we got caught in something similar to what this video had - not sure where we could have landed.

I wonder if there are issues with AA's NorPac routings?

Feel for the passengers and hopefully they at least got some good comp out of it.
This. Over the last 5 years and some 40+ flights from Mainland China I think I can count on 1 hand how many times we did t have a delay in meal service due to turbulence. I'm not at all surprised by this incident because there are a ton of times it gets REALLY bad on these East Bound flights over the Pacific and none of them get reported because they don't cause diversions, but all have been strong to sever.

Glad she got on the ground safe. If they truly feared structural damage I don't see them flying her so quickly, not even ferrying.

Cheers,
AA77$
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Old Dec 18, 14, 8:55 am
  #68  
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Originally Posted by calexandre View Post
Update on the comp question: there are 50k extra bonus miles in my account this AM, labeled "customer service bonus." Looks like AA is being proactive; I certainly haven't complained to them.

ETA: Also got full EQMs for both the aborted trip and the rescheduled.
^ That is very nice; AA was highly proactive on this entire incident. Would it be too much to hope the new American will be more like this? After all, Parker is fully in the left seat.

Thanks for keeping us abreast the entire time!
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Old Dec 18, 14, 9:04 am
  #69  
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Originally Posted by phlwookie View Post
I haven't seen much in the way of reports on the condition of the structure of the plane. Presumably it'll undergo some thorough checks in Japan, but has anyone heard of whether the airframe took damage beyond its contents?
It will take some time, whether they do a preliminary inspection in Japan and send it elsewhere, or perform the testing locally. X-ray, Magnaflux, MPI, ultrasound, whatever they use they will have to be thorough.

I wonder if an incident like this could trigger an early C check at HAECO? How many hours the airframe had toward C check already?
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Old Dec 18, 14, 9:11 am
  #70  
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Originally Posted by calexandre View Post
Update on the comp question: there are 50k extra bonus miles in my account this AM, labeled "customer service bonus." Looks like AA is being proactive; I certainly haven't complained to them.

ETA: Also got full EQMs for both the aborted trip and the rescheduled.
Sounds like AA really stepped up to the plate on this one. Sorry you had to go through this.
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Old Dec 18, 14, 9:14 am
  #71  
 
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The worst turbulence I've experienced was on an AA flight DFW-NRT, about 2 hours from landing in NRT. Though not as severe as this incident, it was bad enough to force the crew to remain seated and they cancelled the meal service.
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Old Dec 18, 14, 9:36 am
  #72  
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Wow, glad to hear that calexandre and everyone else aboard is ok. I read about AA280 the day it happened, just crappy Internet kept me from posting earlier. I was on the LAX-PVG flight a few days ago, and the pilot made it a point on the PA to tell us that we were delayed 15 min from departing and would arrive 45-60 min later because a) we were taking on extra fuel because b) we would fly at 28K feet (and thus slower than normal with more fuel burn) to avoid turbulent air from a winter storm. We just got some light bumps, and after seeing this story, I'm definitely not complaining about missing the Shanghai Circus!
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Old Dec 18, 14, 10:14 am
  #73  
 
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Would love to hear the cockpit squawk!
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Old Dec 18, 14, 10:32 am
  #74  
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Originally Posted by Wollstonecraft View Post
That video is terrifying. The person taking it clearly thought he might die. Flying to LHR on Friday, putting my trust in the professionals of AA as always.
For one, I'm sincerely appreciative AA was first out of the chute (Arizona analogy for Mr. Parker ) with ThreatTrack radar and is installing apace. Beats the heck out of any cappuccino machine or on board snack bar, IMO.

Given the many comments sprinkled about regarding Parker's alleged parsimony, AA is certainly doing the right thing here.

(I wonder if ThreatTrack would have helped in this instance?)
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Old Dec 19, 14, 7:30 am
  #75  
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N751AN flew back to LAX on 19DEC as a ferry flight AA9613, arriving early in the morning (before 0530).
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