U.S. House leaders are calling on CrowdStrike CEO George Kurtz to testify to Congress about the cybersecurity company’s role in sparking the widespread tech outage that grounded flights, knocked banks and hospital systems offline and affected services around the world.

Republican leaders of the House Homeland Security Committee demanded that CrowdStrike CEO George Kurtz commit by Wednesday to appearing on Capitol Hill to explain how the outages occurred and what “mitigation steps” the company is taking to prevent future episodes.

A US House committee called on the chief executive officer of CrowdStrike Holdings Inc. to testify on a defective software update that caused widespread global outages. The House Committee on Homeland Security requested the appearance of CEO George Kurtz, and it asked CrowdStrike to promptly schedule a date.

CrowdStrike CEO George Kurtz was called to testify before the House Homeland Security Committee over the major outage affecting Windows PCs spurred by a faulty update that brought flights, hospital procedures, and broadcasters to a halt on Friday, The Washington Post reported.