Drop and Replace LED Landing Light

[jaylw314]

5 minutes ago, Steve W said:

According to the parts manual the change was at 24-3154(first new-style) which looks to put the change in 1990.

 

 

If that's the case, then I've probably never seen a J model younger than that

[steingar]

I wouldn't worry about certificated vs. non so much.  I had a tractor bulb in my Cherokee for years, and many annuals.  Never heard  word about it.

[ArtVandelay]

According to the parts manual the change was at 24-3154(first new-style) which looks to put the change in 1990.
 
 

Some older Js like my 78 have them, upgraded by mod works.