I believe the monks of Flavigny broke from Archbishop Lefebvre a few years earlier than the Consecrations. This is what gave the local Ordinary the ability to mandate the Novus Ordo for their Conventual Mass. They are a wonderful community, devoted to Our Lady's messages at Fatima and offering the Spiritual Exercises of St. Ignatius to the laity, very unusual for Benedictines.
"Happy is he who lives under the protection of the Blessed Virgin." St. John Mary Vianney