UA752 From United States of America, joined Jan 2001, 142 posts, RR: 2 Posted (12 years 4 months 1 day 16 hours ago) and read 2042 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...
NKP S2 From United States of America, joined Dec 1999, 1714 posts, RR: 5 Reply 5, posted (12 years 4 months 1 day 8 hours ago) and read 1833 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.
Darius From Netherlands, joined Jul 2001, 141 posts, RR: 0 Reply 10, posted (12 years 4 months 11 hours ago) and read 1725 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?
Metwrench From United States of America, joined Aug 2001, 750 posts, RR: 2 Reply 11, posted (12 years 4 months 7 hours ago) and read 1711 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.
DALMD88 From United States of America, joined Jul 2000, 2449 posts, RR: 15 Reply 14, posted (12 years 3 months 4 weeks 1 day 23 hours ago) and read 1679 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.
Chris28_17 From United States of America, joined Jul 2000, 1439 posts, RR: 10 Reply 18, posted (12 years 3 months 3 weeks 1 day 17 hours ago) and read 1590 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
NKP S2 From United States of America, joined Dec 1999, 1714 posts, RR: 5 Reply 19, posted (12 years 3 months 3 weeks 11 hours ago) and read 1555 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.
EssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2 Reply 20, posted (12 years 3 months 3 weeks 7 hours ago) and read 1551 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.