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What Was The Ramper Doing?  
User currently offlineFlyingNanook From United States of America, joined Jan 2004, 830 posts, RR: 12
Posted (9 years 3 months 3 weeks 1 hour ago) and read 3585 times:

Yesterday, I flew out of SFO on my way home to FAI on AS. It was raining while we were boarding the plane (MD-80). I was watching the action on the ramp, when one ramper pulled a ladder up to the wing. He climbed up the ladder and probed the wing with a long wooden stick with a rubber tip. I thought he might be checking for ice, but it was well above freezing.

Anyways, what was he doing?


Semper ubi sub ubi.
13 replies: All unread, jump to last
 
User currently offlineJfkviaphx From United States of America, joined Feb 2004, 194 posts, RR: 0
Reply 1, posted (9 years 3 months 3 weeks ago) and read 3517 times:

He was sumping the fuel tank. It was a mechanic.

User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 2, posted (9 years 3 months 3 weeks ago) and read 3490 times:

He was sumping the fuel tank. It was a mechanic

Sumping the tanks from on top the wing...?? That I have never seen...??



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineJetMechMD80 From United States of America, joined Jul 2004, 380 posts, RR: 7
Reply 3, posted (9 years 3 months 3 weeks ago) and read 3451 times:

Sounds like he was checking for ice. I doesn't have to be anywhere near freezing on the ground to have ice on the wings, especially on an aircraft that just flew in. And the MD-80 is notorious for a phenomena called "super cooling" of the wings. You didn't say if he was on top of the wing, or under it. If he was on top, he had to be checking for ice. The sumps, and the fuel sticks are on the bottom.



"I get along great with nobody"~ Billy Idol
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 4, posted (9 years 3 months 3 weeks ago) and read 3433 times:

After the SAS MD80 crash off-airport in Sweden a few years back, MCD installed these little plastic "tufts" on the top of the wing. From what I recall reading, it you can move the tuft with a stick/pole, you're good to go, if not, it's because there's ice on the wing and you need to take care of it before departure...

Anyone current on the MD80 family, feel free to chime in; the above is just what I recall reading...


User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 5, posted (9 years 3 months 3 weeks ago) and read 3427 times:

JetMechMD80-

That is what I was thinking. Jet fuel is a fantastic 'heat sink'. I've been up on a wing of a plane that just came in say early spring, late fall and you'll frost your butt...!! That wing stays cold.



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineJetMechMD80 From United States of America, joined Jul 2004, 380 posts, RR: 7
Reply 6, posted (9 years 3 months 3 weeks ago) and read 3399 times:

OPNLguy,

You are correct, the tufts are pieces of red nylon cord. two on each wing. We don't pay two much attention to them, IF the aircraft is equipped with wing heater blankets, and they are working.



"I get along great with nobody"~ Billy Idol
User currently offlineCitjet From United States of America, joined Nov 2004, 97 posts, RR: 0
Reply 7, posted (9 years 3 months 3 weeks ago) and read 3375 times:

Ive had to do the inspection that is being described. The process of doing the inspection for ice on the wing is just that. You use a long stick with a rubber tip. The reason for moving the stick around on top of the wing is to see if the ruff section of the upper wing (its like a non-slip surface) is actually smooth or ruff. If it is ruff, the flight is good to go. If the patch is smooth, then that means ice exists. The most important reason for doing this is to prevent any ice from coming loose during take-off and fouling one or both of the engines during climb out. Ice can form on any surface of an aircrafts wing when the tanks contain super cooled fuel. That ice will still form when it is 70 degrees outside. Trust me. Ive made snow balls from the frost that forms on the bottom of the wing before.

Ive worked for the airlines for seven years and now Buisness Aviation for six. Any questions, Id be happy to entertain. I certainly dont know everything though.


User currently offlineJfkviaphx From United States of America, joined Feb 2004, 194 posts, RR: 0
Reply 8, posted (9 years 3 months 2 weeks 6 days 12 hours ago) and read 3019 times:

I'm sorry. I read it quick and replied fast between flights. After I posted I reread the question and realized there was no funnel on the stick. Sorry.

User currently offlineAa717driver From United States of America, joined Feb 2002, 1566 posts, RR: 13
Reply 9, posted (9 years 3 months 2 weeks 6 days 10 hours ago) and read 2909 times:

Citjet--"I certainly don't know everything though" Well... you must not be a pilot!  Big grin Big grin

Just kidding!TC



FL450, M.85
User currently offlineCitjet From United States of America, joined Nov 2004, 97 posts, RR: 0
Reply 10, posted (9 years 3 months 2 weeks 6 days 3 hours ago) and read 2611 times:

I am in the process of attaining my ratings. Donations are welcome!!! Hehe

Now that I'm in Corporate Aviation I have had the privillage of flying several different types of aircraft. This is a GREAT job!


User currently offlineL-188 From United States of America, joined Jul 1999, 29705 posts, RR: 59
Reply 11, posted (9 years 3 months 2 weeks 6 days 3 hours ago) and read 2596 times:

I thought he might be checking for ice, but it was well above freezing.

You guessed the right answer.

Even though it was above freezing it doesn't mean the fuel in the wing is, particularly if the aircraft has been on a prior flight. These cold fuel can chill the surfaces of the wing, drawing moisture out of the air causing condensation and then frost to form. This frost formation has been blamed for at least one MD-80 loss, when it broke off and FOD'ed the engines.

When I was working for AS in 94, they had a policy that if an MD-80 sat on the ground fewer then a certain period of time (I forget how many hours) it had to be de-iced....regardless of the time of the year.



OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
User currently offlineFlyingNanook From United States of America, joined Jan 2004, 830 posts, RR: 12
Reply 12, posted (9 years 3 months 2 weeks 6 days 3 hours ago) and read 2531 times:

Thanks all, I was just curious because I have never seen this done before, even though I live in Alaska. The plane was on the ground for about 30 minutes, but there was no de-icing, so that policy probably no longer exists.


Semper ubi sub ubi.
User currently offlineWbmech From , joined Dec 1969, posts, RR:
Reply 13, posted (9 years 3 months 2 weeks 6 days 2 hours ago) and read 2462 times:

De-icing was not needed. That is why the check is performed. You are supposed to feel a difference between the rough no-slip paint and smooth paint on the wing to determine if there is ice buildup in the wing. If it is all smooth or all rough, that means that there is ice buildup and the wings need de-icing. There is an AD out to perform these checks before each flight. It is linked in one of many posts in A-net.

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