All three elements have a significant effect upon the overall efficiency of any maintenance operation.

The airline was shut down because of illegal maintenance operations in 1986.

He said the report was based on watching 400 routine maintenance operations out of 37,000 a year.

In addition, the airline said it permanently closed its maintenance operation at the airport.

On September 4, 2008, some industrial oil was accidentally discharged to the river in a maintenance operation.

United canceled at least 50 flights yesterday, including 44 for maintenance operations.

The operating budget is used to keep track of maintenance operations, salaries, and interest payments.

There are major manufacturing and maintenance operations for the aerospace industry in Tulsa.

Contact with the observatory was lost on Wednesday during maintenance operations.

This follows just months after the closing of heavy maintenance operations, which resulted in 400 additional job losses.