Source: Simon Hradecky | www.avherald.com

A Delta Airlines Airbus A330-300, registration N815NW performing flight DL-162 (dep Dec 15th) from Minneapolis,MN (USA) to Amsterdam (Netherlands) with 289 people on board, was enroute at FL370 about 530nm southwest of Keflavik (Iceland) when a flight attendant noticed smoke and sparks from a screw head on the aft galley floor and discharged a fire extinguisher. The flight crew was notified, worked the related checklists and pulled the related circuit breakers. After consultation with dispatch and maintenance the crew declared Mayday and diverted to Keflavik for a safe landing.

The Canadian TSB reported maintenance found discolouration in portions of the galley floor and replaced the floor panels. The floor heating was de-activated under minimum equipment list requirements and the aircraft returned to service.

The aircraft remained on the ground for about 2.5 hours, then continued the flight and reached Amsterdam with a delay of about 3:15 hours.