B767-300F flight crew reported hydraulic system failure in flight.

Attributes
ACN	1757004
Time
Date	202008
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Hydraulic System
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Loss of hydraulic quantity: approximately 1:40 hours into [the] flight we received an 'right hydraulic qty' EICAS alert. Quantity showed .48 and continued to slowly decrease over the next hour. Went to the appropriate QRH checklist: only says 'quantity is low.' after consultation with [operations] and [maintenance control] decided it was fine to continue to destination. When right hydraulic system quantity got down to .07; we executed the 'loss of system pressure' checklist; before the low pressure EICAS message appeared; in order to preclude any overheat damage to the hydraulic pumps. This was also coordinated with [maintenance control]. Flight was continued to destination for an uneventful landing and taxi to the gate. Maintenance met the aircraft and confirmed hydraulic fluid streaming aft on right wing.

Original NASA ASRS Text

Title: B767-300F flight crew reported hydraulic system failure in flight.

Narrative: Loss of Hydraulic quantity: Approximately 1:40 hours into [the] flight we received an 'R HYD QTY' EICAS alert. Quantity showed .48 and continued to slowly decrease over the next hour. Went to the appropriate QRH checklist: only says 'quantity is low.' After consultation with [Operations] and [Maintenance Control] decided it was fine to continue to destination. When Right hydraulic system quantity got down to .07; we executed the 'Loss of System Pressure' checklist; before the low pressure EICAS message appeared; in order to preclude any overheat damage to the hydraulic pumps. This was also coordinated with [Maintenance Control]. Flight was continued to destination for an uneventful landing and taxi to the gate. Maintenance met the aircraft and confirmed hydraulic fluid streaming aft on right wing.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.