NWA 757 Go-Around at SEATAC - high winds. VIDEO

[FlyAirtran]

WOW! Guys, nice job on this one. Looks like its time to go to the alternate and clean out our shorts. Watch how abrupt those wings are rocking back and forth. What did the winds get up to yesterday in Seattle?

http://youtube.com/watch?v=119RxxTXYlI

Nice Work gentleman keeping it under control!

 

[1st Rate]

Nice jobs guys!

 

[bubbers44]

KSEA winds were gusting to 60 knots at 1AM local. The noon report was 13 gusting to 20 knots. This was a daylight landing so winds should have died down during this video. Lots of rudder and spoiler deflection on both approaches. Good thing it was a Boeing tail.

 

[MED]

Yup, I landed @ exactly 12:00pm, wind died down but the rain starts pouring like a mother.

 

[Whine Lover]

Nice save Gentleman.

However, if you look carefully, they have absolute lateral control before and after the oscillation begins.

Wasn't there something a few years back about 757's developing a "wing rocking" type event, the cause of which was never found?

757 guys?


YKW

 

[afres bum]

I wonder if this has anything to do with it?

http://www.airweb.faa.gov/Regulator...e8b1fb5e8c94437086257228005a8b41!OpenDocument

 

[Whine Lover]

Answered my own question: http://www.flightglobal.com/Article...0/FAA+seeks+to+end+757+roll+oscillations.html


Of course, they always try to blame the Pilots...NOT the aircraft design.


Hmmm...."Mr. Airbus, meet Mr. Boeing. Mr. Boeing, Mr. Airbus."


YKW

 

[Whine Lover]

"Vortex generators can also reduce oscillations, the FAA says. “We have also received flight-test data indicating that one potential cause of these unintended roll oscillations occurs when airflow over the outboard trailing-edge flap separates due to the movement of the spoilers resulting from large control wheel inputs. Abrupt control wheel inputs to counteract the resulting roll can lead to roll oscillations of increasing magnitude.”

Watch the spoilers in the video.

The roll begins, and stops, EXACTLY when they are deployed/stowed.

YKW

 

[dhampton]

P.i.o.

 

[Whine Lover]

"P.I.O."

But only as a result of a design flaw which allows the blanketing of the flaps due to spoiler movement.

These guys did a nice job by electing to go-around.

"There but for the Grace of God..."


YKW