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"Things" On The Wings?  
User currently offlineUA752 From United States of America, joined Jan 2001, 142 posts, RR: 2
Posted (13 years 1 month 1 week 3 days 2 hours ago) and read 2369 times:

Sorry about the vagueness(sp?) of my topic, but I had no idea how to word it...

What are the little yellow pieces of metal that stick up from the wings? They are the pieces with the holes in them...in this picture, there is one with 2 holes and one with a single hole...Ive noticed these on many jets, not just the 320...


Click for large version
Click here for full size photo!

Photo © Frank Schaefer




Thank you

MSN

21 replies: All unread, jump to last
 
User currently offlineMusang From United Kingdom, joined Apr 2001, 864 posts, RR: 7
Reply 1, posted (13 years 1 month 1 week 3 days 1 hour ago) and read 2261 times:

These are for attaching the liferafts after a ditching, until everyones "boarded", then the raft would be cut adrift when the aircraft eventually sank.

Regards - Musang


User currently offlineUA752 From United States of America, joined Jan 2001, 142 posts, RR: 2
Reply 2, posted (13 years 1 month 1 week 3 days ago) and read 2234 times:

hmm...interesting...i never would have guessed...thanks though

User currently offlineContrails From United States of America, joined Oct 2000, 1833 posts, RR: 0
Reply 3, posted (13 years 1 month 1 week 3 days ago) and read 2222 times:

Oh, that's what they are!

Of course, planes with engines under the wings won't ditch very well, but I feel better knowing that tie downs have been provided.



Flying Colors Forever!
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 4, posted (13 years 1 month 1 week 2 days 19 hours ago) and read 2190 times:

Arn't they Attach brackets for the Escape rope from the Emergency exits [Overwing] which are used as hand holds during emergency evacuation.
regds.
HAWK.



Think of the brighter side!
User currently offlineNKP S2 From United States of America, joined Dec 1999, 1714 posts, RR: 5
Reply 5, posted (13 years 1 month 1 week 2 days 18 hours ago) and read 2160 times:

"HAWK" is correct. They are used to attach the escape rope to guide evacuating passengers. There is a "dog chain" type clip on the end of said rope for that purpose. Of course, the question begs: Would their be enough presence of mind to attach the guide rope to the mounts during a full-blown panic situation? -- Nevertheless, that's their intended function.

User currently offlineBuff From Australia, joined Mar 2007, 0 posts, RR: 1
Reply 6, posted (13 years 1 month 1 week 2 days 15 hours ago) and read 2144 times:

Hey THANKS, people! I learned something. I've seen them many times but really, never had a clue what they were for other than some vague "maintenance function", which from what you say, they're not.

Kind of an important function from your descriptions. I'll be asking my purser about 'em next time I go to work!

Thanks UA752 for asking the question.

Best Regards,

Buff


User currently offlineL-188 From United States of America, joined Jul 1999, 29800 posts, RR: 58
Reply 7, posted (13 years 1 month 1 week 2 days 11 hours ago) and read 2108 times:

Well what to do you know...that makes sense.

before I would have guessed that they would have been for safety lines when mechs are working on the wings but that explaination works better.



OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
User currently offlineMusang From United Kingdom, joined Apr 2001, 864 posts, RR: 7
Reply 8, posted (13 years 1 month 1 week 2 days 9 hours ago) and read 2095 times:

NKP S2 and Hawk - I don't doubt your info, but I've never seen an example of a safety line attached for the purpose of guiding pax off the wing.

What types?

Thanks - Musang


User currently offlineGalaxy5 From United States of America, joined Mar 2000, 2034 posts, RR: 24
Reply 9, posted (13 years 1 month 1 week 1 day 22 hours ago) and read 2066 times:

they look like attachment points for maintenance lanyards and harnesses,


"damn, I didnt know prince could Ball like that" - Charlie Murphy
User currently offlineDarius From Netherlands, joined Jul 2001, 141 posts, RR: 0
Reply 10, posted (13 years 1 month 1 week 1 day 21 hours ago) and read 2052 times:

Thanks a lot for this topic! It is a question that has been on my mind for quite some time. I've heard about the emergency purpose of the yellow rings (for attaching the rafts, never heard about the brackets of the escape rope though), but the funny thing is, I've asked at least five different flight crews before I got a (very hesitating) answer. Isn't the flight crew supposed to know about the yellow rings? Or is it fully the responsibality of the cabin crew to use them in case of a ditching emergency?

User currently offlineMetwrench From United States of America, joined Aug 2001, 750 posts, RR: 2
Reply 11, posted (13 years 1 month 1 week 1 day 17 hours ago) and read 2038 times:

I am more than familiar with this as I was part of a team that made the 1st US registered SAAB 340 certified to fly Extended Over Water. The yellow "Life Line " hooks were the last obstical for certification. PS, SAAB was no help, we did it locally through our FSDO.

Since this feature isn't discussed during the cabin briefing, we can only only hope the remaining Flight Attendants can train everyone after a water landing how to use the life lines. I'm supposing that nobody, ie FAA is expecting anybody to survive a water landing anyway.


User currently offlineUA752 From United States of America, joined Jan 2001, 142 posts, RR: 2
Reply 12, posted (13 years 1 month 1 week 1 day 12 hours ago) and read 2019 times:

Thank you all for the responses....that question has been on my mind for a long time...

MSN


User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 13, posted (13 years 1 month 1 week 1 day 11 hours ago) and read 2015 times:

The B737-200s use them for evacuating passengers from the overwing exits during emergency evacuation.
regds
HAWK.



Think of the brighter side!
User currently offlineDALMD88 From United States of America, joined Jul 2000, 2555 posts, RR: 14
Reply 14, posted (13 years 1 month 1 week 1 day 9 hours ago) and read 2006 times:

The 727 also uses these hooks for evac hand holds. The ropes are stored in the sill of the overwing exit.

As for mechanics tying off to them, I've never seen it done. DL just bought a portable restraint system for that use. I haven't used it yet but it looks like a big suction cup with an Eye bolt. I saw a demo it's real strong. Rumor has it some guys in SLC used a crane to pull it off the floor. The attachment arm bent before they could break it free.


User currently offlineVictor Hotel From Australia, joined Aug 2000, 305 posts, RR: 1
Reply 15, posted (13 years 1 month 5 days 10 hours ago) and read 1958 times:

I was going to ask this question, after flying on a 743 yesterday, and trying to work out what it was. It was about mid wing just behind the leading edge.
VH


User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4200 posts, RR: 37
Reply 16, posted (13 years 1 month 5 days 10 hours ago) and read 1956 times:

Thats where some airlines attatch the no smoking seats.


Chicks dig winglets.
User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4200 posts, RR: 37
Reply 17, posted (13 years 1 month 5 days 10 hours ago) and read 1956 times:

rather.. smoking seats. Kinda sucks when i screw up my own joke. Please laugh in pity now.


Chicks dig winglets.
User currently offlineChris28_17 From United States of America, joined Jul 2000, 1439 posts, RR: 10
Reply 18, posted (13 years 1 month 1 day 3 hours ago) and read 1917 times:

just to shake things up a bit, i was under the impression the purpose of these were for attaching the wing during manufacturing (that rhymed!) the "crane" or hoist or whatever has cables that are hooked to these points to hold it in the air to be attached to the fueselage... also to be used if they need to replace it or something....

i could be way off, judging from the previous replies i probably am, but thats my $0.02


CHRIS


User currently offlineNKP S2 From United States of America, joined Dec 1999, 1714 posts, RR: 5
Reply 19, posted (13 years 4 weeks 1 day 21 hours ago) and read 1882 times:

It just noticed the original poster's question was primarily regarding the A320...not the 737, which I though he meant. -- The reason those things are there on A320's is ( IMO ) somewhat comical. A320's have overwing slides in the upper part of the wing/body fairing. What is supposed to happen is: ( per the film they show us in maintenance training ) If the slide fails to inflate and is limp, the outboard upper corner is attached to that wing bracket...and two people are supposed to support the bottom of the slide and stretch it tight like a trampoline, allowing people to slide down. When the slide is inflated is is rigid enough not to need support. -- In a real evacuation emergency situation, it would be most interesting to see if things would work out that orderly if the slide fails to inflate.

User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 20, posted (13 years 4 weeks 1 day 17 hours ago) and read 1878 times:

Typically if something is used for fall protection the tie off spot is above the person...They wouldn't offer much protection for someone falling off a wing...

As was mentioned, they're pad eyes for emergency escape lanyards. Two other clues: most a/c have non skid paint near the wing area, that makes a turn over the flaps, as well as stenciled directions. The biggee clue is that, when the over wing door is removed, the lanyard w/ a snap lock on the end falls out.


They're not nearly substantial enough to position a wing with.

Cheers



User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 21, posted (13 years 4 weeks 1 day 17 hours ago) and read 1869 times:

over wing plug; not door...Jeez

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