British Airways said COO Klaus Goersch is leaving the company.

After British Airways’ first strike in four decades, Chief Operating Officer Klaus Goersch and People Director Angela Williams will leave the company.

According to anĀ emailed statement, former director of engineering Jason Mahoney will be the new COO, while Stuart Kennedy, previously director of people at IAG Cargo, will replace Angela Williams as People Directos.

The Wall Street Journal reports that the shakeup follows a pilot walkout in September that crippled the company’s operations over two full days. Following the incident, the airline canceled roughly 1,700 flights during the walkout, affecting about 200,000 travelers. The demonstration was fueled by disagreements over pilots’ pay and benefits. The workers’ union alleged that British Airway made huge profits on poorly paid pilots who helped keep the firm afloat while it faced tough times.