Gemini Spacecraft

Organization Description

Electrical System

Number Two Fuel CellDelta Pressure Telelight 

Number Two Out Of Tolerance Delta Pressure Telelight

The lights are illuminated red when a malfunction exists with the Number Two Fuel Cell. In the event that the differential pressure exceeds the prescribed limits, the pilots must evaluate the fuel cell battery performance, and if a malfunction exists, shut down the malfunctioning fuel cell battery section by setting the applicable fuel cell power and stack control switches to OFF position.