Narrative:

Hydraulic leak causing loss of fluid noticeable immediately after takeoff. Requested level off at 3000 ft. Left system low quantity light came on; indicated 3 quarts. Some reports of unusual smell in cabin but no smoke reported. Contacted maintenance and asked them to contact maintenance controller. Maintenance control advised return to departure station and land at 130;000 pounds. We entered holding to burn fuel. I declared precautionary emergency for loss of one hydraulic system. During holding; I contacted dispatch and advised. We then decided with dispatch and maintenance that landing above 130;000 pounds would be okay (overweight landing). Landed uneventfully; touching down lightly at 300 FPM. Taxi control was fine so I elected to taxi to the gate. I then contacted dispatch and debriefed the event over the telephone prior to departing again.

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Original NASA ASRS Text

Title: An MD80's left hydraulic system lost fluid down to 3 quarts immediately after takeoff. An unusual smell but no smoke was reported in the cabin; the crew returned to land after declaring an emergency.

Narrative: Hydraulic leak causing loss of fluid noticeable immediately after takeoff. Requested level off at 3000 FT. Left system low quantity light came on; indicated 3 quarts. Some reports of unusual smell in cabin but no smoke reported. Contacted maintenance and asked them to contact Maintenance Controller. Maintenance Control advised return to departure station and land at 130;000 LBS. We entered holding to burn fuel. I declared precautionary emergency for loss of one hydraulic system. During holding; I contacted dispatch and advised. We then decided with Dispatch and Maintenance that landing above 130;000 LBS would be okay (overweight landing). Landed uneventfully; touching down lightly at 300 FPM. Taxi control was fine so I elected to taxi to the gate. I then contacted Dispatch and debriefed the event over the telephone prior to departing again.

Data retrieved from NASA's ASRS site as of April 2012 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.