ROSCOSMOS/ILS

Proton-M | Express-AM4R

FAILUREMay 15, 2014 at 21:42 UTCProton-M/Briz-M →

Proton rocket failure due to malfunction in third stage steering engine. Russian communications satellite Express-AM4R was lost. This was one of several Proton failures during this period that raised reliability concerns.

TARGET ORBIT
GTO
CONFIRMED
This launch date and time are confirmed by the launch provider. Countdown is active.
When is the Proton-M | Express-AM4R launch?
The Proton-M | Express-AM4R is scheduled for Thursday, May 15, 2014 at 9:42 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: FAILURE.
What rocket is being used for Proton-M | Express-AM4R?
The Proton-M | Express-AM4R mission uses the Proton-M/Briz-M rocket.
Where is the Proton-M | Express-AM4R launching from?
The launch takes place from Baikonur Cosmodrome.
What orbit is Proton-M | Express-AM4R going to?
The Proton-M | Express-AM4R mission is targeting GTO.
Who is launching Proton-M | Express-AM4R?
The Proton-M | Express-AM4R is operated by Roscosmos/ILS.
Can I watch the Proton-M | Express-AM4R launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 29, 2026 00:02 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:02 UTC
Launch date set: May 15, 2014 at 21:42 UTC
NET (No Earlier Than) confirmed by Roscosmos/ILS
Mar 29, 2026 00:02 UTC
Launch failure reported
Updated via Launch Library 2
Last data sync: 8 seconds ago
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