LaSalette, Pont Main, and Akita were certainly approved apparitions:
On the Approval of the Apparition of LaSalette:
The local Bishop too faced quite a degree of opposition in investigating the apparition, and it was only after four years, and having set up two commissions of enquiry, that Mgr de Bruillard, as bishop of Grenoble, approved of devotion to Our Lady of Salette, in the following terms.
"We declare that the apparition of the Blessed Virgin to two shepherds, on September 19, 1846, on a mountain in the Alps in the parish of La Salette, bears in itself all the marks of truth and that the faithful are justified in believing without question in its truth. And so, to mark our lively gratitude to God and the glorious Virgin Mary, we authorise the cult of Our Lady of La Salette."
The PontMain Apparition:
The following March a canonical inquiry into the apparition was held, and in May the local bishop questioned the children, the inquiry being continued later in the year with further questioning by theologians and a medical examination. The bishop was satisfied by these investigations, and in February 1872 declared his belief that it was the Blessed Virgin who had appeared to the children.
Joseph Barbadette became a priest, a member of the Congregation of the Oblates of Mary Immaculate, while his brother Eùgene became a secular priest. He was assisted by one of the girls who had seen Mary as his housekeeper, with the other, Jeanne-Marie Lebossé, becoming a nun. A large basilica was built at Pontmain and consecrated in 1900.
Apparition at Akita:
The Tears and Message
Akita statue weeping
In June of 1988, Joseph Cardinal Ratzinger approved the Akita events as "Reliable and Worthy of Belief."
This was the first approval of a Marian apparition in over 50 years!
There were five wonders at Akita:
1. Tears flowed from the statue of Our Lady 101 times, from Jan. 4, 1975 to Sept. 15, 1981 (Feast of Our Lady of Sorrows). [On Sept. 28, 1981, Sister Agnes suddenly felt an Angel at her side during adoration of the Blessed Sacrament. A bible appeared open before her eyes and she was invited to read Genesis 3:15...the voice of the Angel was heard explaining that the passage had relationship with the tears of Mary and then said: "There is a meaning to the figure 101. This signifies that sin came into the world by a woman and it is also by a woman that salvation came to the world. The zero between the two signifies the Eternal God who is from all eternity until eternity. The first one represents Eve and the last the Virgin Mary."]
2. A cross-shaped wound on the left hand of Sister Agnes (main seer) bled profusely, causing great pain.
3. An identical wound appeared on the right hand of Our Lady's statue, from which blood flowed three times.
4. Sister Agnes, who had been declared to be incurably deaf, was completely cured at a time predicted by Our Lady.
5.In the midst of these wonders, the Angel and Our Lady appeared and spoke . . .giving messages of world - shaking importance.
Bishop Ito of Nigata, Japan, said that Akita is an update of Fatima... and its promise.
There is a document that one of the seers at LaSalette passed around when she was older that was not approved, and this is maybe what you were thinking about...but the original apparition and message was approved.