Narrative:

After takeoff, we received a 'cwp' warning light of 'hydraulic' after gear retraction. We then proceeded in checking the hydraulic panel and noticed the hydraulic quantity and pressure of main system to be low. Immediately we turned the hydraulic pump off and put gear handle down, followed by the after takeoff checks. Declared an emergency and followed the abnormal hydraulic fluid loss checklist which led to having the gear down with 3 green lights. A safe normal landing was made. The aircraft then came to a full stop with brakes and steering functioning off a taxiway. But for ground contact purposes, we were asked if we could move up clear of a taxiway. We complied with the request and moved further forward 10-20 ft and stopped once again. I then proceeded with the after landing checks. Shortly, thereafter, the nose wheel started drifting off and into the grass before it came to a full stop. Thereafter, engines were shut down, ATC was notified and passengers and company were also notified. Contributing factor of hydraulic loss was a break or a disconnect of a swivel connection on the right main gear.

Related reports:

Google
 

Original NASA ASRS Text

Title: ACR LTT HAD A COMPLETE HYD FAILURE. IT RETURNED AND LANDED WITH NO INJURIES OR DAMAGE. THE LTT NOSE WHEEL CAME TO REST IN THE GRASS WELL AFTER THE LNDG INCIDENT.

Narrative: AFTER TKOF, WE RECEIVED A 'CWP' WARNING LIGHT OF 'HYD' AFTER GEAR RETRACTION. WE THEN PROCEEDED IN CHKING THE HYD PANEL AND NOTICED THE HYD QUANTITY AND PRESSURE OF MAIN SYS TO BE LOW. IMMEDIATELY WE TURNED THE HYD PUMP OFF AND PUT GEAR HANDLE DOWN, FOLLOWED BY THE AFTER TKOF CHKS. DECLARED AN EMER AND FOLLOWED THE ABNORMAL HYD FLUID LOSS CHKLIST WHICH LED TO HAVING THE GEAR DOWN WITH 3 GREEN LIGHTS. A SAFE NORMAL LNDG WAS MADE. THE ACFT THEN CAME TO A FULL STOP WITH BRAKES AND STEERING FUNCTIONING OFF A TAXIWAY. BUT FOR GND CONTACT PURPOSES, WE WERE ASKED IF WE COULD MOVE UP CLR OF A TAXIWAY. WE COMPLIED WITH THE REQUEST AND MOVED FURTHER FORWARD 10-20 FT AND STOPPED ONCE AGAIN. I THEN PROCEEDED WITH THE AFTER LNDG CHKS. SHORTLY, THEREAFTER, THE NOSE WHEEL STARTED DRIFTING OFF AND INTO THE GRASS BEFORE IT CAME TO A FULL STOP. THEREAFTER, ENGS WERE SHUT DOWN, ATC WAS NOTIFIED AND PAXS AND COMPANY WERE ALSO NOTIFIED. CONTRIBUTING FACTOR OF HYD LOSS WAS A BREAK OR A DISCONNECT OF A SWIVEL CONNECTION ON THE R MAIN GEAR.

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.