Flown double-sided checklist page from the LM-7 Contingency Checklist carried and used on the Apollo 13 mission, 5.5 x 8, signed and flight-certified on the front in blue ballpoint, "In flight notes in red by James Lovell—carried on and used during the flight of Apollo 13, Fred Haise, Apollo 13 LMP—notes in black by myself—Fred Haise," and again on the reverse, "In flight notes by James Lovell—carried on and used during the flight of Apollo 13, Fred Haise, Apollo 13 LMP." Identified as "PWR-7" and "PWR-8," the front features a diagram of the LM panel 16 circuit breakers with settings for an emergency power down sequence, copiously annotated by Lovell and Haise; the reverse lists steps and functions related to the power down process, with a few notes by Lovell. In fine condition.
Accompanied by a detailed letter of provenance signed by Haise, in part: "Accompanying this letter is a sheet numbered PWR-7 and PWR-8 from the Apollo 13 LM-7 Contingency Checklist carried and used on the flight of Apollo 13 during April 11 to 17, 1970. Our flight was scheduled to be the third manned lunar landing mission, but had to be aborted after a Service Module oxygen tank explosion.
The side labeled PWR-7 illustrates the LM panel 16 circuit breakers and settings for EMER PWR DN (Emergency Power Down). A solid black breaker indicates a closed breaker and a white breaker indicates an open breaker. Actual flight notes by Jim Lovell made during the mission in red ink read: 'RCS Sys(tem) A/B-2, 4 on off' and relates to breaker settings for the LM's Reaction Control System. Jim changed the setting requirements for 8 breakers, adding 'open' three times and 'closed' once, then questioned '?' one other setting. Additional notes by myself in black are 'OPEN' on five different breakers and 'CLOSE' on five others. I put question marks next to the settings of 4 more breakers…
During our emergency, power conservation was paramount in order for us to survive the amount of time required to return to the earth. Side PWR-8 lists steps for the LM power down including the settings for telemetry, glycol pumps, suit fans, and cabin repress. Jim checked off 5 steps and marked out 'VHF.' He added the comment of: 'normal use requires 15 min r c jet heater on' next to the RCS Manual Attitude Control step. Heaters were need to warm the RCS rockets prior to use to prevent possible damage in their cold state…
This sheet has been in my personal space collection since 1970. It is an extremely significant artifact that records some of the most important events and procedures James Lovell, Jack Swigert, and I performed in order to safely return to earth."
Ex. Swann Auction Galleries, March 18, 2006.
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