Apollo CM Block I Caution and Warning Indicator Panel, measuring approximately 5.25 x 3.5 x 25, with a label on the top reading, “Annunciator, Event, Master Caution, Type I, NAA/S&ID Control No. ME434-0020-1009, Grimes Matted and framedg. Co. S/N 10074 TSN 0010, Part No. 75-0056-21.” Some of the warning indicators read: “IMU Fail,” “G&N Error,” “Gbml Lock,” “S/M RCS B,” “AGC Pwr Fail,” “S/M RCS D,” and “O2 Press.” In very good condition, with some indicators missing. This panel would alert the crew to errors or malfunctions associated with the Guidance and Navigation System.
Terms and abbreviations used in our descriptions.