Sukhoi Superjet-100 has lost part of its engine during the take-off
 

MOSCOW, May 5. /TASS/. Moscow’s Sheremetyevo airport confirmed on Tuesday that the Sukhoi Superjet-100 aircraft of Russia’s flag carrier Aeroflot has lost part of its engine during the take-off.

"This incident indeed took place, but this happened yesterday," a representative of the airport told TASS, giving no further details.

Media reports said earlier that the incident occurred at Moscow’s Sheremetyevo airport but it came to light only at Kiev’s airport Borispol during an inspection before its flight back to the Russian capital.

The missing part was reportedly found on the runway-end safety area of the Moscow airport.

Given the uneventful flight, I would guess it wasn't an engine part, but more likely part of the nacelle.

Reports suggest it was at least part of the exhaust mixer.

http://www.snecma.com/IMG/files/10_0..._visuel_fr.jpg

a pointer to something badly wrong in the turbine no doubt