How to ground an entire fleet of helicopters
1- Get one Helicopter
2- Perform a very efficient post flight inspection
3- Send the "Helo" to maintenance due to a problem in one insert on the floor
4- Remove the floor panel
5- Find out that the fuel tank beneath the floor has a big corrosion problem
... and here it is the main 5 steps that you need to do in order to create a small crisis situation in your hangar.