Apollo 12 Transcript 1969

Summary

Four-page excerpt of the NASA Apollo 12 air-to-ground voice transcript, catalogued as NASA-UAP-D001 and released in batch R1 on 2026-05-08. The text spans tapes 90 through 93 and transcript pages 742 to 778, recording exchanges between Houston mission control, the lunar module Intrepid, and the command module Yankee Clipper. Most of the conversation concerns routine operations such as battery charge termination, P22 tracking data, an RCS hot fire, and a burned-out tracking light. One crew member reports flashes and particles of light drifting past the lunar module's optical alignment telescope that seem to be escaping the Moon. A pulsing pattern on the guidance system's DEDA registers is raised with the ground and attributed by support staff to probable electromagnetic interference.