A B767-300ER flight crew experienced EICAS message L HYD QTY. They ran the procedure and continued to destination; declared an emergency with Approach. Landing was normal; post flight inspection revealed a leaking #5 brake.

Narrative

About 1:30 into our flight at FL360; we received an EICAS advisory of 'L HYD QTY.' We preceded to run the QRH which basically said crew awareness. As a quick side note: the QRH HYD QTY (L or C or R) procedure has only a RSVR discrete light shown; this is true for a B757; but not a B767. It should also show a QTY light or have separate checklists for the 757 and 767 like it does for most other issues; but I digress. Captain and I decided to shut off the engine driven hydraulic pump and the electric demand pump to save the fluid we had left. We talked it over; knowing the 767 doesn't have many items on the left system; and decided to continue on toward the destination. We discussed diverting; but thought it was just as safe to continue. The weather was good all along our route. We also ran the QRH procedure for HYD SYS PRESS (L only) 767; in case we lost the rest of the fluid and we unable to turn the pumps back on. We told ATC we had a hydraulic leak and decided to declare an emergency with Approach. We turned the pumps back on outside the outer marker; and had all three hydraulic systems for landing. We landed uneventfully; with everything working normally. The fire trucks noticed the left outside main wheel; #5; looked wet when they followed us to gate. After shutting down; we went out to see for ourselves. The #5 brake was dripping fluid on the ramp. This surprised me; because the left hydraulic system on the 767 has nothing to do with the brakes. I just got out of school and learned the Normal brakes are on the right; the Reserve and Alternate; on the center; and Accumulator are also on the right. So maybe I'm missing something or don't know as much as I thought. The brakes worked good for us; as I had set the autobrakes to 2 for landing. My second leg of IOE felt like I was back in the simulator. Captain performed admirably keeping the entire crew apprised of the situation.