Codimension 1 distributions on three dimensional hypersurfaces

We show that codimension 1 distributions with at most isolated singularities on threefold hypersurfaces Xd ⊂ P4 of degree d provide interesting examples stable rank 2 reflexive sheaves. When ≤ 5, these sheaves can be regarded as smooth points within an irreducible component the moduli space Our second goal goes in reverse direction: we start from a well-known family locally free and local complete intersection type Xd.