B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 200; Flight Crew Type 495.9
Aircraft Equipment Problem Less Severe
Flight Crew Landed As Precaution; Flight Crew Returned To Departure Airport
Aircraft
On takeoff and retracting the landing gear; the EICAS message 'Gear Doors' remained on after the gear had been retracted. Additionally; we also had the 'DOORS' light illuminated on the forward panel. We ran the associated QRH checklist. Then we called Dispatch and [Maintenance] and advised them of the situation. We decided to return to [departure airport]. While returning we then received the EICAS message 'HYD QTY - L' along with the actual quantity on the lower EICAS screen showing a decreasing trend. We ran the associated QRH checklist. We then called both Dispatch and [Maintenance] to update them on the situation. We continued to [departure airport] with an uneventful overweight landing.
B757 Captain reported returning to departure airport after experiencing landing gear retraction issues related to low fluid quantity in the left hydraulic system.