Progress M-12M, an uncrewed ISS resupply freighter, was lost when the Soyuz-U third-stage RD-0110 engine shut down about 325 seconds after liftoff due to a contaminated fuel line, marking the first Progress launch failure since 1978.
- Outcome
- Failure
- Payload to orbit
- Did not reach orbit
- Flight
- 694th
- of 714 Soyuz U flights
- Date and time
- 24 August 2011, 00:00 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Unknown
- Launches in 2011
- 48th of 84