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The 737 Rudder Problem.....what Was It?  
User currently offlineCYKA From , joined Dec 1969, posts, RR:
Posted (12 years 10 months 2 weeks 3 days 5 hours ago) and read 2160 times:

I've heard many times about the 737 rudder problem, both here and on the news. I still dont know what sort of mulfunction the rudder mechanism caused. Also whats that long screw-like thing that they often showed on t.v.

4 replies: All unread, jump to last
 
User currently offlineIainhol From , joined Dec 1969, posts, RR:
Reply 1, posted (12 years 10 months 2 weeks 3 days 5 hours ago) and read 2120 times:

There where reports that the 737's rudder would suddenly deflect during flight. All the 737 drivers I have chatted have never had a problem with it and say the 737 are great aircraft!
Iain


User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 2, posted (12 years 10 months 2 weeks 3 days 5 hours ago) and read 2121 times:

I'll not re-hash the 737 rudder stuff here, but check-out the following links:

http://archives.seattletimes.nwsource.com/cgi-bin/texis/web/vortex/display?slug=rudd&date=19961027

http://archives.seattletimes.nwsource.com/cgi-bin/texis/web/vortex/display?slug=rudd&date=19961028

http://archives.seattletimes.nwsource.com/cgi-bin/texis/web/vortex/display?slug=boe&date=19961029

http://archives.seattletimes.nwsource.com/cgi-bin/texis/web/vortex/display?slug=rudd&date=19961030

http://archives.seattletimes.nwsource.com/cgi-bin/texis/web/vortex/display?slug=rudd&date=19961031


The fellow that wrote this 5-part series won a Pulitzer prize for it, and it's a good read. FYI, the NTSB just revised the probable cause in the United 585 accident mentioned in these articles, to show the rudder as the culprit...

Re: the other question you asked, that's called a jackscrew. As a basic mechanical device, they're used a couple of places on the aircraft, most commonly to move the horizontal stabilizer, and on some aircraft, to drive the trailing edge flaps up and down. The Seattle times also did a series of articles on Alaska 261, and I'm sure they have plenty of photos and drawings somewhere in the archive. See: http://seattletimes.nwsource.com/html/flight261/


User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 10 months 2 weeks 3 days 3 hours ago) and read 2087 times:

Ran across this in my archives.. Lots of photos, diagrams, and you can click on to parts 2-5 of the text...

http://www.pulitzer.org/year/1997/beat-reporting/works/737-1/


User currently offlineMac From United States of America, joined May 2001, 293 posts, RR: 0
Reply 4, posted (12 years 10 months 2 weeks 2 days 12 hours ago) and read 2063 times:



Excellent series report re. 737 rudder problems by the Seattle Times. Thanks for the reference.

Mac aka Doug Vernon
San Diego


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