oil screen find

[slowflyin]

I found this in the oil screen (non-filtered AC) during a routine oil change on a O200.  Readily sticks to a magnet.  Any thoughts from the brain trust?

 

Edited August 1, 2024 by slowflyin
pictures misaligned

[GeeBee]

Looks like the screen did its job. I would not worry.

 

[N201MKTurbo]

Kind of looks like some sheared threads. There are not many places where there are bolts screwed into steel. The O200 has its accessories gear driven on the back. I would suspect it came from one of those. all just gusses BTW.

[Brandt]

Just spitballing, but I think the big one is a paperclip.

[1980Mooney]

25 minutes ago, slowflyin said:

I found this in the oil screen (non-filtered AC) during a routine oil change on a O200.  Readily sticks to a magnet.  Any thoughts from the brain trust?

 

Agreed. It looks like a broken/sheared thread or a piece of metal flashing to me.  Given the curvature and size it looks fairly large diameter.  Oil filler plug maybe?

[1980Mooney]

40 minutes ago, slowflyin said:

I found this in the oil screen (non-filtered AC) during a routine oil change on a O200.  Readily sticks to a magnet.  Any thoughts from the brain trust?

 

How many hours/calendar age on the engine?  I assume that you have only the screen and no filter on this engine.  Have you already dumped the oil? - if not drag a magnet along the bottom of the pail/pan.  See if you pick up more bits.

[EricJ]

It's not a big worry unless you start getting significant amounts or increasing amounts of metal in future oil changes.

When I was a teenage lineboy for a flying club we had a C150 that had a bad prop strike.   Back then there wasn't much guidance on what to do after a prop strike other than keep an eye out for metal in the screen if the new prop was tracking straight.    Since I was doing the oil changes, when I checked the oil screen on the next oil change it was full of black sludge, which I thought was kind of strange.   I went to scoop it out and it was all metal shards covered in used oil.   It had been running fine up to that point.

One sliver is something to take note of, but it's not that unusual.   

[slowflyin]

Thanks to all!  Not to concerned, more a curiosity.  

[PeterRus]

OMG! They killed Clippy!

[Mark89114]

I like the thread theory, maybe off the oil filter?

[201Steve]

Probably worth the $50 or whatever to send it to AvLabs and have them give you an AMS number. I probably would. However, matching AMS numbers with respective parts is a little more challenging. Particularly if it’s a common one. If it’s something unique though, you’d have a culprit or two to consider. 

[Will.iam]

11 hours ago, Brandt said:

Just spitballing, but I think the big one is a paperclip.

And it usually comes off of a stack of papers. Be on the lookout for those as they will be coming soon too.