In the MNPS (Minimum Navigation Performance Specification) area, a pilot should first of all take the following action in the event of a failure of the last inertial navigation system:
Domanda 2, Operational Procedures - ATPL - Airline Transport Pilot license
| Set a different heading approximately 45° from the previous one |
| Request authorisation from Control to track another aircraft |
| Immediately climb or descend 1000' |
| Notify Air Traffic Control and wait for a reply within a reasonable time |
