1968.10.17 - Loss of attitude control caused Apollo LLRV Crash
Two NASA investigation boards had reported that loss of attitude control caused the May 6 accident that destroyed lunar landing research vehicle No. 1, NASA announced. Helium in propellant tanks had been depleted earlier than normal, dropping pressure needed to force hydrogen peroxide propellant to the attitude-control lift rockets and thrusters.
Warning to the pilot was too late for him to take necessary action for landing. The boards called for improvements in LLRV and LLTV design and operating practices and more stringent control over flying programs. No bad effects on the Apollo lunar landing program had been found and no changes were recommended for the LM.
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