A Soyuz-U carrying a Yantar-4K2 (Kometa-series) military reconnaissance satellite failed to reach orbit, one of the rare launch failures for the normally reliable Soyuz-U during this period.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 558th
- of 714 Soyuz U flights
- Date and time
- 3 April 1990, 18:00 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- Launches in 1990
- 29th of 121