1.  Most modern planes can land in zero visibility.

2.  It has introduced computers, improved service and leased modern planes with foreign crews.

3.  More modern planes have recorders that can track dozens, even hundreds, of actions.

4.  Using the new routes will be easy for equipment already installed on many modern planes.

5.  However aeronautics experts contacted by AFP said lightning was unlikely to have caused the crash because modern planes were built to withstand very strong electric charges.

6.  Modern planes were well protected against lightning.