Flown ‘Environmental Control System’ checklist page carried to the moon during the Apollo 17 mission, 8.5 x 10.5, signed and flight-certified in black ballpoint, “Flown to the moon on Apollo XVII, Gene Cernan, CDR.” The double-sided page, dated August 7, 1972, consists of pages 10-1 and 10-2 with a tab marked “ECS.” The first page is left blank and the second is headed “ECS Malfunction Index” and features an index of steps related to “O2 Flow HI,” “Suit Compressor,” “CO2 PP HI,” and “Glycol Temo Low.” In fine condition.
