the expense of fuel intended for stationkeeping once in the correct orbit. On 30 January 2007, a Zenit-3SL exploded on the launch pad after an engine failure caused by debris in the turbopump. The payload on that flight was the NSS-8 communications satellite for SES New Skies. This caused a considerable amount of downtime whilst damage to the launch platform was repaired. On 1 February 2013, during the launch of Intelsat-27, a Zenit-3SL launch vehicle suffered a premature engine shutdown, as the rocket strayed from its lift-off trajectory, plunging into the Pacific Ocean shortly after launch. See also List of software bugs References Zenit (rocket family) Vehicles introduced in 1999