ACR TURBOJET EXPERIENCES LOSS OF MAIN HYD SYS IN AGS AIRSPACE.

Narrative

ON TKOF FROM AGS WE RAISED THE LNDG GEAR HANDLE RESULTING IN THE FOLLOWING INDICATIONS: MAIN GEAR INDICATED UP (NO LIGHTS); NOSE GEAR SHOWED A RED AND A GREEN LIGHT. THIS; ALONG WITH SOME VIBRATION FROM THE NOSEWHEEL AREA; INDICATED THAT OUR NOSE GEAR WAS STILL DOWN. WE DECIDED TO CONTINUE TO ATL DUE TO THE LONGER RWYS AND THE AVAILABILITY OF ASSISTANCE. WE THEN NOTICED THE 'A' SYS HYD QUANTITY HAD GONE TO NEAR ZERO. WE ACCOMPLISHED OUR ABNORMAL PROCS; ADVISED ATC OF OUR PROB; DECLARED AN EMER AND REQUESTED VECTORS TO RWY 27R IN ATL. WE ADVISED THE FLT ATTENDANTS; MADE AN ANNOUNCEMENT TO THE PAX; AND HAD THE FLT ATTENDANTS PREPARE THE CABIN FOR A POSSIBLE EMER LNDG. WE ADVISED OUR COMPANY TO HAVE THE CRASH CREW STANDING BY AND ALSO TO HAVE A TUG READY TO TOW US OFF RWY. WE ACCOMPLISHED LNDG PREPARATIONS WITH 'A' SYS FAILURE (LOWERED THE GEAR MANUALLY; AND ALTERNATELY EXTENDED FLAPS). AN UNEVENTFUL LNDG WAS ACCOMPLISHED BY THE CAPT TO RWY 27R ATL. THE ACFT WAS BROUGHT TO A STOP ON THE RWY; THE ENGS SHUT DOWN; AND AN INSPECTION BY CRASH CREWS WAS MADE. SINCE WE HAD NO NOSEWHEEL STEERING; THE TUG WAS HOOKED UP AND WE WERE TOWED INTO OUR GATE. ATC; FLT ATTENDANTS; COMPANY; CRASH CREWS; AND TUG WERE ALL VERY HELPFUL AND COOPERATIVE. THE PROB TURNED OUT TO BE A LEAK IN THE NOSE GEAR ACTUATOR.