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MD-88 Question  
User currently offlineJoseKMLB From United States of America, joined May 2008, 493 posts, RR: 0
Posted (7 years 6 months 5 days 1 hour ago) and read 4391 times:

Last night we had an MD-88 taxi into the gate with oil on top of the flaps. I never see oil on top of the flaps or the wing, but I have seen it on the bottom and off the engines. I told the capt. while he did his walk around but I never got to ask him where it would come from because we were offloading the plane. I did see him call MTC then check both mains and walk around to the other wing and look at that and then go back to the other side and he talked for a little bit more and that was it.

Does anyone know where that oil would come from? It was more in-bored close to the main gear area but on top of the flaps.

6 replies: All unread, jump to last
User currently offlineFr8Mech From United States of America, joined Sep 2005, 6694 posts, RR: 16
Reply 1, posted (7 years 6 months 4 days 20 hours ago) and read 4356 times:

It was probably grease. After sitting in the airstream, it takes on a look of oil staining. The grease comes from an over-zealous person with a grease gun during routine maintenance. If you don't wipe-off the excess it gets everywhere. Hell, even if you do wipe it off, it shows up in the dardest places.

When seconds count...the police are minutes away.
User currently offlineDALMD88 From United States of America, joined Jul 2000, 2877 posts, RR: 14
Reply 2, posted (7 years 6 months 4 days 14 hours ago) and read 4301 times:

Sounds like hydraulic fluid to me. I would bet the fitting on the top of the gear extend actuator.

User currently offlineJoseKMLB From United States of America, joined May 2008, 493 posts, RR: 0
Reply 3, posted (7 years 6 months 3 days 1 hour ago) and read 4156 times:

Yeah it could of been grease as well thanks for the repleys.

User currently offlineFBU 4EVER! From Norway, joined Jan 2001, 998 posts, RR: 7
Reply 4, posted (7 years 5 months 5 days 15 hours ago) and read 3597 times:

Could also be a leaking actuator for the inboard ground spoiler panel. The flap sections retract and stowe underneath the spoiler panels hence oil on top of the flap surface.

"Luck and superstition wins all the time"!
User currently offlineAA737-823 From United States of America, joined Mar 2000, 6281 posts, RR: 10
Reply 5, posted (7 years 5 months 5 days 4 hours ago) and read 3538 times:

My vote would be a leaky spoiler actuator. It can actually be quite common (cough cough, 757 cough) to see skydrol seeping toward the trailing edge on the upper surface of the wings.

User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 6, posted (7 years 5 months 5 days ago) and read 3510 times:

Sounds like a dynamic leaking spoiler actuator.

Think of the brighter side!
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