STOCKHOLM (Reuters) – Ailing Scandinavian airline SAS and striking pilot unions will resume negotiations on Monday, public broadcaster NRK said, after failing to reach new collective agreements over the weekend. Most SAS pilots in Sweden, Denmark and Norway walked out on July 4 after talks over conditions related to the carrier’s rescue plan collapsed. The parties returned to the negotiating table in the Swedish capital last Wednesday. “We are now going home after 37 hours to get some sleep,” Henrik Thyregod, head of the Danish pilots’ union, said as he left the Stockholm venue where negotiati…