It had an operational life of more than ninety years and was closed in 1922.

It had an 8 year operational life and failed late 2009/early 2010.

Throughout the plane's operational life, the cost of a ticket never dropped below $9,000.

It will have an operational life of 40 years.

The aircraft are expected to be upgraded throughout their operational lives.

They have an operational life of 5 to 7 years, although actual performance has been variable.

Most of the components operational life is comprised in this stage.

They have an operational life of almost a hundred years.

They had an operational life of twenty five years.

It was involved in a number of serious operating incidents throughout its operational life.