Proton-K/Blok DM-2 carrying the Ekran-M s/n 14L direct-broadcast television satellite failed when the third stage lost thrust after a cleaning rag was left inside the propellant feed system, stranding the satellite.
- Outcome
- Failure
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 41st
- of 110 Proton K/DM-2 flights
- Date and time
- 9 August 1990, 20:18 UTC
- Rocket
- Proton K/DM-2
- Builder
- Khrunichev
- Launch site
- 200/39 (200L), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- Launches in 1990
- 74th of 121