Original page from the malfunction checklist flown and used aboard the Apollo 17 mission, 7.5 x 10.5 with an integral file tab, signed in black felt tip “Carried to Surface of the Moon on Board Lunar Module ‘Challenger.’ Gene Cernan, Apollo XVII.” The two-sided sheet, dated July 12, 1972, includes procedural flow charts related to the operation of gas canisters and the like. Toning to tab and three punch holes along the left side, otherwise fine condition. A scarce and notable relic from America’s last manned moon mission to date! Pre-certified Steve Zarelli and RR Auction COA.