Because Airbus planes are manufactured by a European company, the European Union Aviation Safety Agency issued the initial order. The Federal Aviation Administration subsequently issued an immediate emergency order requiring airlines to update or replace faulty elevator-aileron control software on about 545 Airbus aircraft — banning further use of the affected software — and mandating the fixes before the planes can fly again with a deadline of midnight on Sunday,

U.S. airlines remained under modest pressure into Monday’s open after Airbus (OTCPK:EADSF) (OTCPK:EADSY) reported a software issue with its A320 fleet that impacted major U.S. carriers including American Airlines Group (AAL),

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Air India clarified reports of operating an aircraft without an airworthiness certificate, stating it reported the issue to the DGCA and suspended the involved personnel. An internal investigation is ongoing.

The Directorate General of Civil Aviation (DGCA) is probing the incident reported on November 26. The regulator had asked the airline to carry out an internal probe to fix the responsibility and ensure that such incidents do not occur in the future.

Air India faces DGCA scrutiny after an A320 was flown on eight sectors without a valid airworthiness certificate. Engineer de-rostered as pilots face review.

Airbus is expecting to deliver fewer planes this year due to an issue with fuselage panels on some A320 planes.

India’s aviation regulator said it was investigating the carrier after it operated eight flights without a valid airworthiness certificate.