Soyuz 7K-L1 #4L
Failure
SEP 27196722:11:00 UTC#1 first stage engine failed to start at liftoff due to a loose plug. Automatic shutdown commanded at T+97 seconds. The LES pulled the L1 descent module to safety.
LIFTOFF
SEP 27 196722:11:00 UTC
Failure
launched from Pad 81/23 Baikonur
aboard Proton K/D 8K82K/11S824 229-01 into Lunar free-return
Payload
Soyuz 7K-L1 #4L
Spacecraft test