Dress rehearsal of the countdown was scheduled to begin on Friday, June 27, and to run for 113 hours, including a 6-hour built-in hold. Spacecraft hypergolic loading started on June 18 and was completed on June 23, despite delays caused by weather conditions. A lunar module landing-radar problem was resolved by repainting the base heatshield to reduce the reflectivity. In flight operations, the crew, the controllers, and the recovery operations team were moving ahead with training sessions on schedule. Two days of discussions were held with senior recovery officials on the U.S.S. Hornet and no major problems were identified. A second mobile quarantine facility was being deployed aboard the Hornet to provide backup support on the bioprotocol. A significant milestone was reached June 18 when the scientific investigators and the Apollo 11 astronauts went through a successful simulation of the EASEP (Early Apollo Surface Experiments Package) activities, ranging from the data plans and procedures to the use of the facilities.