launched from USA

KH-4B

Failure
FEB 17197120:04:00 UTC

Improper pre-flight procedure caused frozen lubricant to form a plug that resulted in complete turbopump failure 18 seconds after liftoff. The booster lost thrust and impacted the ground not far from the launch complex.

launched from SLC-3W Vandenberg

aboard Thor ad SLV-2H Agena-D Thor 537 into LEO

Payload

KH-4B (S/N 1113)

Reconnaissance