Kosmos 154
Failure
APR 08196709:00:00 UTCPremature separation of fourth stage ullage motors.
LIFTOFF
APR 08 196709:00:00 UTC
Failure
launched from Pad 81/23 Baikonur
aboard Proton K/D 8K82K/11S824 228-01 into LEO
Payload
Kosmos 154 (Soyuz 7K-L1 #3P)
Spacecraft test