B757-200
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface
Aircraft Equipment Problem Critical
Flight Crew Returned To Gate; Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft
Preflight; start; and taxi out uneventful with no indications of hydraulic problems. After setting takeoff power EICAS indicated L Hyd Qty and L Hyd Press and status page indicated PTU. I aborted at low speed. Lost all left hydraulic items. PTU did not give back high load items as designed. I had difficulty taxiing clear of runway without nose wheel steering. After clearing runway; we shut off hydraulic pumps and called for tow back to gate. It appears we lost all left hydraulic fluid. Engine hydraulic pump and electrical pump were on 3-5 minutes after fluid loss. Ran APU and shut down engines when instructed by Maintenance. Tow back uneventful.
A B757-200 flight crew rejected their takeoff at low airspeed when EICAS alerted of low pressure and fluid in the left hydraulic system.