Imperial Oil has resumed manufacturing and shipment of aviation gasoline from its Strathcona refinery in Edmonton.

Spokesman John Harding told COPA fuel shipments will return to their previous level and ensure a reliable supply for customers across the country.

In February, Imperial announced that some of the fuel produced in six-week period did not meet specifications for electrical conductivity. That could have affected capacitance type fuel gauge sensors on some aircraft and on airport fuel tanks.

The fuel was quarantined and that interrupted supplies across western Canada and in parts of Ontario, Quebec and the U.S.

The Strathcona refinery is the only source of 100 LL in Canada.