InterSky (Friedrichshafen) will operate flights between Vienna and Altenrhein on behalf of competitor, People's Viennaline (Altenrhein), whose sole E170, OE-LMK (c/n 150), is due to undergo mandatory maintenance. InterSky will operate the flights, which fly twice daily on weekdays and once on Saturdays, using an ATR72-600 starting August 5 and ending on August 29.