A pilot assist servo leak would impact which advisory status?

A pilot assist servo leak would impact which advisory status?

• A. Backup Pump On advisory would not appear
• B. Fuel Quantity Low advisory would appear
• C. Warning light would flash continuously
• D. Hydraulic Pressure Low advisory would appear

Answer: (A)

The key idea is how the UH-60’s hydraulic advisories differentiate between a localized leakage and a full-system failure. A pilot assist servo leak is a leak within one servo circuit, which reduces boost in that specific channel but does not automatically trigger the backup hydraulic pump to run. The backup pump on advisory appears only when the system detects a condition that requires the backup pump to supply hydraulic pressure due to primary-system loss or a verified failure of the primary pump. Because a servo leak doesn’t necessarily constitute a primary-pump failure or a system-wide pressure loss that would engage the backup pump, the Backup Pump On advisory would not appear. You’d more likely see warnings related to the servo or overall hydraulic pressure status rather than the backup pump indicator.

The key idea is how the UH-60’s hydraulic advisories differentiate between a localized leakage and a full-system failure. A pilot assist servo leak is a leak within one servo circuit, which reduces boost in that specific channel but does not automatically trigger the backup hydraulic pump to run. The backup pump on advisory appears only when the system detects a condition that requires the backup pump to supply hydraulic pressure due to primary-system loss or a verified failure of the primary pump. Because a servo leak doesn’t necessarily constitute a primary-pump failure or a system-wide pressure loss that would engage the backup pump, the Backup Pump On advisory would not appear. You’d more likely see warnings related to the servo or overall hydraulic pressure status rather than the backup pump indicator.