What does an illuminated ENG 1 FAULT light on the ENG panel signify?

When the ENG 1 FAULT light illuminates on the ENG panel, it signifies that there has been an automatic start aborted condition. This light serves as an immediate visual alert to the flight crew that something went wrong during the engine's automatic starting procedure, which could potentially impact the engine's ability to start properly.

In an automatic start sequence, the engine's full authority digital engine control (FADEC) system manages the process based on predefined parameters. If it detects that the engine cannot reach the necessary conditions for starting or if there is another issue that prevents a successful start, the FADEC initiates an abort of that start sequence. The illumination of the ENG 1 FAULT light alerts the pilots to this situation so they can take appropriate actions, such as attempting a manual restart or diagnosing the issue further.

The other choices represent different situations that do not align with the specific indication of the ENG 1 FAULT light. Understanding this detail helps in recognizing the importance of this warning and the necessary responses to ensure engine reliability and safety during operations.