what is deferred matince?

Answer 1

While "deferred maintenance" can mean what the above two said, let me offer up another meaning - which is quite commonly used in business.

Deferred maintenance is the accrual for regularly scheduled maintenance. It is called deferred because it is not happening this year, but in the future.

Let's say you're an airline. You have one plane that needs an A check every flight and a D-check every 10 years (just for this example). When you fly the plane around, you expense the cost of the A-check because you have recognized the cost of the check. You accrue for the cost of the D-check down the line because it satisfies the test of a liability (i.e. measurable, happened, irrevocable).

This accrual is called "deferred maintenance".

Answer 2

Technically speaking, deferred maintenance DOES affect safety. Deferred maintenance means putting off repair expenses today, with the understanding that there will be more repairs and a higher rate of failure in the future. See this site:

http://en.wikipedia.org/wiki/Deferred_maintenance

As a real world example, the airline industry is constantly being accused of deferred maintenance that makes airline travel less safe.

Answer 3

on a vehicle its maintenance that needs to be done but can safely be deferred to a future time.