Southwest Boeing 737: Vibration | FerrariChat

Southwest Boeing 737: Vibration

Discussion in 'Aviation Chat' started by CRG125, Dec 29, 2008.

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  1. CRG125

    CRG125 F1 Rookie

    Feb 7, 2005
    2,620
    Los Angeles, Ca
    Full Name:
    Vivek
    So I just got back from Salt Lake city yesterday. Was gone on my yearly family vacation to ski. Anyways, we as usual fly on southwest as it seems to be to cheapest fare out there. We get on the plane and I noticed it was an older 737 as it didn't have the winglets at the end of the wings. I know the newer ones do have it and mostly southwest airplanes are the new 737's. As we were taxing to the runway, the plane was making alot of cracking sounds and other wierd noises. We get to the run way and the pilot goes full throttle. As we come down the runway at full speed, all of a sudden the planes starts shaking and makes even louder cracking noises. Finally the plane starts to ascend and it had a hard time getting off the ground. I felt like we weren't going to make it. I look over to my father after the take off and he was scared ****less. We really thought along with my wife we weren't going to make it. I have no clue about flying so please don't flame me for my ignorance. That is why I am posting this so I can get a better understanding. I have been on alot of planes and this plane just had such hard time taking off that I really thought it wasn't going to make it. Any feedback would be helpful?
     
  2. BigTex

    BigTex Seven Time F1 World Champ
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    Dec 6, 2002
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    Bubba
    Fully loaded with passengers?

    That's a lot of luggage......
     
  3. SonomaRik

    SonomaRik F1 Veteran

    I'll take a stab: retracting the landing gear, one may have experienced a problem or perhaps a wind cross to the gears.
     
  4. 1ual777

    1ual777 F1 Rookie

    Mar 21, 2006
    2,948
    Orange County, CA
    Plastic wall panels might be loose; extending flaps might be the sound. Bad weather? Full flight with extra fuel? Could be all of the above.
     
  5. Bob Parks

    Bob Parks F1 Veteran
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    Nov 29, 2003
    8,017
    Shoreline,Washington
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    My first thoughts are; runway surface was rough, heavy load required a high V1 and Vr. What you heard was not the airframe creaking and " cracking" , it was probably the interior panels and the overhead...all light and loose sometimes. I experienced the same thing in an L1011 at Salt lake. Full of 310 people , baggage, fuel, and a hot day. A long rattling run, and a Vr of 165 after which the climb-out was a slow and careful process.
     
  6. robbreid

    robbreid Karting

    Feb 25, 2007
    167
    Click Here Southwest accidents.

    Southwest actually has the best safety record for any of the large US airlines that has ever existed.
    Southwest has never lost a passenger or crew member in an accident. Ever.

    Everything you describe is a normal take-off. I don't know how often you fly, but a B737 at full power, makes a little noise!!!
    Next time, relax, enjoy the flight.

    I just flew Toronto-Frankfurt-Sofia-London-Toronto

    Lufthansa A340-300
    Lufthansa B737-300
    Air Bulgaria Airbus A320
    Air Canada B767-300ER

    On the Lufthansa A340, the passenger beside me was praying out loud on take off, and had a death grip on the seat in front.
    I explained what was happening, the flaps, speed brakes, gear cycling, spoilers, reversers - by the time we landed, she took it a lot better than the take off!!!
     
  7. SAFE4NOW

    SAFE4NOW F1 Veteran
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    Aug 25, 2004
    5,808
    Dallas Texas
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    If you know you know
    I fly Southwest for this exact reason... their safety record alone. That and I know a few of the tech's and how they are on their personal cars... which leads me to how they maintain the planes.

    Question ( and I am going to go google now ) I did not see the incident in Dallas at Love field, where a plane over shot the end of the runway and fell across Mockingbird Lane, several years ago, listed as an incident on your link?

    Steve
     
  8. donv

    donv Two Time F1 World Champ
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    Jan 5, 2002
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    Portland, Oregon
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    Southwest has run quite a few airplanes off of runways, but other than that, they have a great record!

    I wouldn't worry too much about the vibration-- some of those old 737s do rattle a bit.

    On the other hand, the day after Christmas, I was riding on an Alaska 737 and thought it seemed awfully nice-- so I asked the flight attendant how old it was, and he pointed me to the airworthiness certificate above the forward door-- issued 9 days before!

     
  9. Kds

    Kds F1 World Champ

    #9 Kds, Jan 5, 2009
    Last edited: Jan 5, 2009
    Vivek......

    Don't worry about it.

    During takeoff everything is stressed to the max physically........noise, vibration, and harshness are overwhelmingly present at this time due to what was said earlier, and it seems to be more common IMHO with the older aircraft. Not due to higher cycles (take off and landings), but probably poorer sound insulation standards and worn interior trim combined with heavy load factors on a hot day.

    Southwest has a few old 737-500's around still and they have a maximum weight of some 135,000 pounds....so think of that amount of weight fighting the forces of gravity trying to keep it on the ground, rolling along a rough runway surface, which is magnified by the increasing takeoff speed and the subsequent stresses on the aircraft trying to lift off.......

    I have flown in old Fokker 100's.......McDonnell Douglas DC9's......Boeing 707's and 757's....etc....that would have scared the daylights out of you, compared to the feeling on today's Boeing 777 and current Airbus aircraft. You should try flying from the webbed jump seat in the back of a C-130 Hercules.....LOL !!! You ain't felt/heard nothing yet.
     
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  10. GG

    GG Formula 3

    Feb 21, 2008
    2,227
    Reminds me of my flight last week on a Singapore A340. During takeoff, the exit door panels were shaking so hard and the plane was shifting left and right so violently that I seriously thought we weren't going to make it. I used to love flying but I had a landing a few years back where the plane jerked to the right so abruptly that I was convinced that we were going to crash off the runway. I legitimately have a fear of flying now and even the tiniest turbulence has my normally agnostic self praying to God. And it seems like with each and every flight, my fear gets worse and worse.
     
  11. MarkPDX

    MarkPDX F1 World Champ
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    Apr 21, 2003
    15,111
    Gulf Coast
    I don't know numbers for a 737 but in my estimation a fully loaded Southwest jet will quite easily out climb an empty Herk, there is really no comparison. It's quite a thrill to take off out of Baghdad on a hot day with a full load of Army guys and wondering if somebody is gonna pop off a missile.
     
  12. Bob Parks

    Bob Parks F1 Veteran
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    Nov 29, 2003
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    The BOEING 737 is one of , if not the most, reliable and efficient smaller jet transports ever. With the CFM-56 engine it is an absolute winner. To give you an idea of how good it is, there is a group trying to design a replacement for a new generation airplane. So far they have been unable to achieve an improvement that exceeds 20 percent. Even with new materials and technology they haven't been able to justify the expense of a new design to beat the current airplane's efficiency. This airplane has a reliabililty rate of nearly 99.9.
     
  13. CRUSING

    CRUSING Karting

    Oct 31, 2002
    235
    Jupiter, FL
    Even better now that they seem to have worked out the gremlins in the yaw damper!
     
  14. audi_328

    audi_328 F1 Rookie
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    Resurrecting an old thread, as just yesterday I was looking up flight info for a trip I’m taking on Southwest in June. Plane is a 737-800.

    Then tonight I see this: https://www.foxbusiness.com/fox-news-travel/southwest-airlines-flight-makes-emergency-landing-denver-engine-part-falls-boeing-737-plane.amp

    Can’t say I have a lot of confidence in Boeing after all that’s been in the news, but I know SW has a great safety record, and have flown them often. Especially after seeing this piece today regarding an incident on the exact same type of plane I’m supposed to fly on, am I paranoid for thinking I should cancel and rebook on an airline flying an Airbus? Or is this more a one-off and I ought to trust that SW typically has a better handle on plane condition/maintenance than this?

    I don’t particularly like flying, am not a nervous flyer, and realize the most dangerous part of the trip (statistically) is the drive to the airport. But I do like that there’s no chance of plummeting 30,000 feet to one’s death on the drive to the airport.
     
  15. Jaguar36

    Jaguar36 Formula 3
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    Nov 8, 2010
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    Cherry Hill, NJ
    There hasn't been a significant uptick in incidents on Boeing planes. Nor is the rate of incidents on Boeing planes significantly higher than on Airbus. Southwest carriers over 120 million passengers a year and has just a single fatality in the last 25 years! It is ridiculously safe to fly on a Southwest 737.

    The only thing that has changed is that every incident on a Boeing plane is now a major news story. It's just another instance of the media making folks paranoid for clicks.
     
  16. audi_328

    audi_328 F1 Rookie
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    Makes sense, and thanks for the perspective.
     
  17. GatorFL

    GatorFL Moderator
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    Nov 18, 2005
    16,895
    Wellington, FL
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    Duane
    Your statement is incorrect. Southwest had a fatality 6 years ago when there was an engine failure, pieces of the engine hit the fuselage which experienced an explosive decompression. One passenger was partially sucked out and died of her injuries.

    https://en.wikipedia.org/wiki/Southwest_Airlines_Flight_1380
     
  18. Jaguar36

    Jaguar36 Formula 3
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    Nov 8, 2010
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    Yes, thats the single fatality I mentioned.
     
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