soyuz 7k-l1 no.5l, sometimes identified by nasa as zond 1967b, was a soviet spacecraft which was launched in 1967 as part of the zond programme. it was a soyuz 7k-l1 spacecraft, the second of nine to be launched. it was intended to perform a circumlunar flyby of the moon before returning to the earth for landing, but failed to achieve earth orbit.