OLL 31
P · 5 of 9 top stickers yellow
R' U' F U R U' R' F' R9 moves · Probability 1/54 · Mirror: OLL 32 · Inverse: OLL 40

Setup: apply these moves to a solved cube to reach this case
R' F R U R' U' F' U RP · 5 of 9 top stickers yellow
R' U' F U R U' R' F' R9 moves · Probability 1/54 · Mirror: OLL 32 · Inverse: OLL 40

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