Narrative:

The weather was VFR with winds 040 at 05 KTS. I was the captain and pilot flying in a piaggio; with a first officer as the non-flying pilot. After lift off and positive climb was established I called for landing gear up. After the first officer selected the gear handle to the up position there was a hydraulic pressure annunciator illuminated and the hydraulic pressure indicated 0 psi. We conducted the after takeoff check and then I assumed radio transmissions and asked the first officer to retrieve the QRH and conduct the hydraulic failure checklist. That checklist brought us to the emergency gear extension checklist which we also conducted. Now the landing gear was down and locked. I then requested vectors from approach to return to the departure airport. They said for us to expect runway 06; I asked the first officer to load the ILS 06 approach into the FMS and set up the navs as well. [I] called for an approach check followed by the landing checklist. The landing was briefed as flaps down; props 2;000; vref 120 KTS. Emergency braking was also discussed during the briefing. The touchdown was completed on speed and on centerline. I then put the propellers into reverse and continued to track straight with the use of rudder control. As I continued to slow the aircraft began to yaw left; rudder was no longer effective so I applied right differential braking and came out of reverse. Now the airplane was yawing to the right and braking was not effective in stopping the aircraft before departing the right side of the runway approximately 1;000 ft from the end.

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Original NASA ASRS Text

Title: P180 flight crew experiences a hydraulic system failure as the landing gear is retracted after takeoff. The gear is extended using the Emergency Gear Extension Checklist and the flight returns to the departure airport. During the roll out without nose wheel steering or normal brakes; directional control is lost as the rudder becomes ineffective and the aircraft departs the runway at low speed.

Narrative: The weather was VFR with winds 040 at 05 KTS. I was the Captain and pilot flying in a Piaggio; with a First Officer as the non-flying pilot. After lift off and positive climb was established I called for landing gear up. After the First Officer selected the gear handle to the up position there was a hydraulic pressure annunciator illuminated and the hydraulic pressure indicated 0 PSI. We conducted the after takeoff check and then I assumed radio transmissions and asked the First Officer to retrieve the QRH and conduct the Hydraulic Failure Checklist. That checklist brought us to the Emergency Gear Extension Checklist which we also conducted. Now the landing gear was down and locked. I then requested vectors from Approach to return to the departure airport. They said for us to expect Runway 06; I asked the First Officer to load the ILS 06 approach into the FMS and set up the NAVs as well. [I] called for an approach check followed by the Landing Checklist. The landing was briefed as flaps down; props 2;000; VREF 120 KTS. Emergency braking was also discussed during the briefing. The touchdown was completed on speed and on centerline. I then put the propellers into reverse and continued to track straight with the use of rudder control. As I continued to slow the aircraft began to yaw left; rudder was no longer effective so I applied right differential braking and came out of reverse. Now the airplane was yawing to the right and braking was not effective in stopping the aircraft before departing the right side of the runway approximately 1;000 FT from the end.

Data retrieved from NASA's ASRS site as of July 2013 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.