Final answer:
The red FAULT light on the RAT & EMER GEN pb indicates a problem with the Ram Air Turbine (RAT) and the Emergency Generator (EMER GEN) system in an aircraft.
Step-by-step explanation:
The red FAULT light on the RAT & EMER GEN pb indicates a problem with the Ram Air Turbine (RAT) and the Emergency Generator (EMER GEN) system in an aircraft.
When the FAULT light is illuminated, it means that there is a fault or failure in the RAT and EMER GEN system, and it should be addressed by the flight crew or maintenance personnel.
For example, if the RAT fails to deploy or generate sufficient power, the FAULT light may indicate a problem with the system that needs to be investigated and resolved.