The 57th phase of the Guwan Mithudam project concluded successfully on 28 June 2023 under the guidance of Chairperson of the SLAF Seva Vanitha Unit, Mrs. Charmini Pathirana, at Salina College in Moratuwa, by SLAF Base Ratmalana.

The Seva Vanitha Unit at SLAF Base Ratmalana installed a new lavatory facility at the school. Upon completion of the project, it was handed over to the Principal of Salina College by Air Commodore Charith Bodhiseela, the Commanding Officer of Air Force Museum at SLAF Base Ratmalana. Additionally, during the ceremony, students were gifted with stationery items. The event was supervised by the Base Commander of SLAF Base Ratmalana, Air Commodore Amal Perera.

The project was funded by the SLAF Seva Vanitha Unit and SLAF Base Ratmalana. The ceremony was attended by a cross-section of officers and other ranks from SLAF Base Ratmalana, as well as representatives from the school.