Which Emergency Procedure should be followed when hydraulic indicators show abnormal pressure or servo warnings?

• A. ICU Failure
• B. SFI Failure
• C. LPCAP Failure
• D. Hydraulic Indicating System Failure

Answer: (D)

When hydraulic indicators show abnormal pressure or servo warnings, treat it as a hydraulic indicating system fault. The emergency procedure for Hydraulic Indicating System Failure is the direct, appropriate response because it specifically addresses loss or degradation of hydraulic power to the flight-control servos and provides the steps needed to maintain safe control of the helicopter. The other options refer to different subsystems or components (ICU, a generic servo failure, or a specific LPCAP issue) and do not match the immediate issue signaled by hydraulic pressure and servo warnings. Following the hydraulic indicating system failure procedure ensures you correctly manage the hydraulic fault and maintain safe flight.