We routinely rest aircraft during normal operations for planned scheduled maintenance and to carry out any required upgrades. This ensures that airworthiness and safety are never compromised.
In financial year 2006-07 a decision was made to retire four C130 Hercules aircraft at the end of the financial year. Three of these aircraft were then operationally paused because they were either due scheduled maintenance or had reached the end of their outer wing safe life. It was therefore deemed as uneconomical to carry out this scheduled maintenance or wing replacement activity prior to their formal retirement from service.