The US FAA aims to levy a $425,000 fine against US regional carrier Atlantic Southeast Airlines (ASA) for operating two Bombardier CRJs that were not in compliance with federal regulations.

FAA stated SkyWest subsidiary ASA failed to complete required inspections of two aircraft after they were struck by lightning. One strike occurred on 21 July 2008 followed by the second on 23 July of the same year.

FAA said one of its air safety inspectors discovered both alleged violations.

The agency stated ASA operated the two regional jets on 13 Delta Connection revenue passenger flights from 22 July to 24 July 2008 while in non-compliance.

"FAA regulations require the carrier to conduct and document detailed checks for lightning strike damage mandated in the airline's aircraft maintenance manual," the agency said.

ASA has 30 days to respond to the FAA.

Source: Air Transport Intelligence news