Original sentence: After Problems with the former Crossair pilot unions who refused to accept different conditions than the former Swissair pilots within the same Airline, A subsidiary calles Swiss European Air Lines was founded which belongs 100% to Swiss International Air Lines.First called Swiss Air Lines, this Company was based on the former Crossair, and was basically a merger of Crossair and former Swissair Employees, Routes, aircraft etc.It acts as both airlines' frequent flyer program along with many other airlines.Swiss took over 26 longhaul and 26 mediumhaul Aircraft from the Swissair fleet and refurbished the liveries to turn it into the new Swiss fleet, together with the former Crossair Fleet consisting of Embraer 145, Saab 2000, MD-80 Series and Avro RJ.The Company Swissair continued to exist (in Liquidation) but had no further assets etc
Edited sentence: After problems with the former Crossair pilot unions, who refused to accept different conditions than the former Swissair pilots within the same airline, a subsidiary calles Swiss European Air Lines was founded which belongs 100% to Swiss International Air Lines.First called Swiss Air Lines, this Company was based on the former Crossair, and was basically a merger of Crossair and former Swissair employees, routes and aircraft.It acts as both airlines' frequent flyer program, along with many other airlines.Swiss took over 26 longhaul and 26 medium haul Aircraft from the Swissair fleet and refurbished the liveries to turn it into the new Swiss fleet, together with the former Crossair Fleet consisting of Embraer 145, Saab 2000, MD-80 Series and Avro RJ.The Company Swissair continued to exist (in liquidation), but had no further assets