A red warning band is visible on which THAAD indicator?

• A. Shock Indicator
• B. Status Monitor
• C. Deck Elevation Cylinders
• D. Ground Rod Drive

Answer: (A)

A red warning band on a THAAD indicator signals an abnormal condition tied to shock being outside safe limits. This color-coded alert is built into the Shock Indicator, which is designed to monitor and display peak shock levels the hardware experiences during handling, transport, or operation. When a shock event exceeds the calibrated threshold, the red band appears to warn maintenance that the component may have been damaged or fatigued and needs inspection.

Other indicators serve different purposes: a Status Monitor reflects current operational state, but not necessarily a shock over-limit condition; Deck Elevation Cylinders and Ground Rod Drive indicators show position or drive status rather than abnormal shock levels, so they don’t use this same red warning band.