Source: Simon Hradecky | www.avherald.com

A Delta Airlines Boeing 767-300, registration N189DN performing flight DL-474 (dep Sep 30th) from New York JFK,NY (USA) to Venice (Italy) with 220 people on board, was enroute at FL350 over the Atlantic Ocean about 230nm southeast of St. John’s,NL (Canada) when an electrical odour in the cabin was detected, no smoke was visible. The captain handed controls to the first officer and performed the “smoke and fumes” checklist. Shortly after completing the checklist the crew received indication for the left hand recirculation fan. The crew consulted with maintenance, then decided to turn around and divert to St. John’s, the crew declared emergency. The aircraft landed safely in St. John’s about 55 minutes later.

The Canadian TSB reported maintenance verified the left recirculation fan had been the source of the odour.