Final answer:
The inboard tank SCHD light is a warning light that indicates a problem with the hydraulic system associated with the inboard tank SCHD in an aircraft. It typically illuminates due to a fault or malfunction in the hydraulic system.
Step-by-step explanation:
The inboard tank SCHD light is a warning light that indicates a problem with the inboard tank SCHD in an aircraft. SCHD stands for Self-Contained Hydraulic Device, which is a hydraulic storage system used in aircraft for various purposes, such as landing gear operation.
When the SCHD light illuminates, it typically means that there is a fault or malfunction with the hydraulic system associated with the inboard tank SCHD. This could be due to a leak, low fluid level, or other issues.
To address the issue, the pilot or maintenance crew should investigate and repair the hydraulic system to ensure proper functioning of the inboard tank SCHD and the overall aircraft.