Narrative:

Passing through approximately 15000 ft; EICAS display left hydraulic quantity. Lower screen showed left hydraulic quantity approximately .40. Turned off left engine electric and engine pump in accordance with QRH. Quantity was .32 and decreasing. Emergency declared and we returned to ZZZZ. Quantity went to 0 and pressure went to 0. Gear and flaps extended via alternate method. Emergency declared and overweight landing made at 203000 pounds. Stopped on the runway and were towed to the gate. Only thing I am not sure of is when I request a tow; is that automatically a request to pin the gear? When we got to the gate; the mechanic pinned the gear since there was no pressure to the down-lock. Should I have asked for that specifically? If so then the QRH should make a note of that as well.

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Original NASA ASRS Text

Title: B757-200 DEVELOPED A LEAK IN THE LEFT HYD SYSTEM ON INITIAL CLIMBOUT. FLT CREW DECLARED AN EMER AND PERFORMED ALT FLAP AND GEAR EXTENSION PROCEDURES WHEN THEY RETURNED FOR AN OVERWT LNDG.

Narrative: PASSING THROUGH APPROX 15000 FT; EICAS DISPLAY L HYD QUANTITY. LOWER SCREEN SHOWED L HYD QUANTITY APPROX .40. TURNED OFF L ENG ELECTRIC AND ENG PUMP IN ACCORDANCE WITH QRH. QUANTITY WAS .32 AND DECREASING. EMER DECLARED AND WE RETURNED TO ZZZZ. QUANTITY WENT TO 0 AND PRESSURE WENT TO 0. GEAR AND FLAPS EXTENDED VIA ALTERNATE METHOD. EMER DECLARED AND OVERWT LNDG MADE AT 203000 LBS. STOPPED ON THE RWY AND WERE TOWED TO THE GATE. ONLY THING I AM NOT SURE OF IS WHEN I REQUEST A TOW; IS THAT AUTOMATICALLY A REQUEST TO PIN THE GEAR? WHEN WE GOT TO THE GATE; THE MECH PINNED THE GEAR SINCE THERE WAS NO PRESSURE TO THE DOWN-LOCK. SHOULD I HAVE ASKED FOR THAT SPECIFICALLY? IF SO THEN THE QRH SHOULD MAKE A NOTE OF THAT AS WELL.

Data retrieved from NASA's ASRS site as of May 2009 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.