Final lunar surface simulations with the crew, network, and Mission Control Center were completed on November 4. The instrument-unit command system, with a replacement transponder and decoder, was successfully retested and in-place repair of four LM-6 circuit breakers was completed, also on November 4. The recovery quarantine equipment and mobile quarantine facility completed checkout for shipment to the recovery ship on November 7. The final consumable analysis showed positive margins for all phases of the mission. Also, on November 7, the countdown to launch began at KSC (T minus 98 hours). A 31-hour hold was scheduled for November 8 with the count resuming at 9:00 a.m. November 9 (T minus 84 hours). The hold was designed to avoid premium wage cost.