OLL 48
L · 3 of 9 top stickers yellow
F R U R' U' R U R' U' F'10 moves · Probability 1/54 · Mirror: OLL 47 · Inverse: OLL 51

Setup: apply these moves to a solved cube to reach this case
F U R U' R' U R U' R' F'L · 3 of 9 top stickers yellow
F R U R' U' R U R' U' F'10 moves · Probability 1/54 · Mirror: OLL 47 · Inverse: OLL 51

F U R U' R' U R U' R' F'