If the fire handle has been pulled and the fire is extinguished, what happens to the fire handle light?

When the fire handle is pulled in a C-17, it activates the fire suppression system and the corresponding fire handle light illuminates to signify that the system is engaged. Once the fire is extinguished, the fire handle light extinguishes as a means of indicating to the crew that the fire protection system is no longer active and that the fire has been successfully managed. This clear indication allows the pilots to assess that the risk of fire in that area has been mitigated, and it provides assurance that the aircraft's systems are functioning as intended following a fire incident.