launched fromRussia
Kosmos 300
Failure
SEP 23196914:07:00 UTCBlok D failure due to defective LOX valve.
LIFTOFF
SEP 23 196914:07:00 UTC
Failure
launched fromPad 81/24Baikonur
aboardProton K/D 8K82K/11S824244-01intoLEO
Payload
Kosmos 300 (Luna E-8-5 #403)
Lunar sample return
