Narrative:

When we took off and reached 10000 ft, I heard the (1ST chime). I felt a grinding under my feet. Flight attendant #1 received a call from flight attendant #2, and told me it was grinding in the back, like trying to shift into gear. As I was going to the cockpit, the captain called me to go up front. He advised me that the hydraulics went out and we were going back to dfw. He wasn't planning on an evacuate/evacuation, but if we needed, he would use the easy victor signal. So I advised flight attendants #2 and #4 of the situation. We as a crew went over our procedures and made our final safety checks. We landed with no problems and were met by fire engines.

Google
 

Original NASA ASRS Text

Title: CABIN ATTENDANT RPT, MD80, DFW-LGB. ON TKOF, HYD PROB. RETURN TO DFW. EMER FIRE EQUIP MET FLT.

Narrative: WHEN WE TOOK OFF AND REACHED 10000 FT, I HEARD THE (1ST CHIME). I FELT A GRINDING UNDER MY FEET. FLT ATTENDANT #1 RECEIVED A CALL FROM FLT ATTENDANT #2, AND TOLD ME IT WAS GRINDING IN THE BACK, LIKE TRYING TO SHIFT INTO GEAR. AS I WAS GOING TO THE COCKPIT, THE CAPT CALLED ME TO GO UP FRONT. HE ADVISED ME THAT THE HYDS WENT OUT AND WE WERE GOING BACK TO DFW. HE WASN'T PLANNING ON AN EVAC, BUT IF WE NEEDED, HE WOULD USE THE EASY VICTOR SIGNAL. SO I ADVISED FLT ATTENDANTS #2 AND #4 OF THE SIT. WE AS A CREW WENT OVER OUR PROCS AND MADE OUR FINAL SAFETY CHKS. WE LANDED WITH NO PROBS AND WERE MET BY FIRE ENGS.

Data retrieved from NASA's ASRS site as of July 2007 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.