CE-680 pilot crew reported uncommanded aircraft movement on the ramp when the aircraft was not chocked and the parking brake was set without adequate hydraulic pressure to properly set the brakes. The aircraft rolled into the door of the fuel truck.
Synopsis
CE-680 pilot crew reported uncommanded aircraft movement on the ramp when the aircraft was not chocked and the parking brake was set without adequate hydraulic pressure to properly set the brakes. The aircraft rolled into the door of the fuel truck.
Narrative
Upon landing at ZZZ the crew began preparation for the next flight; a revenue flight to ZZZ1. The fuel truck pulled up to the aircraft to begin fueling. I was in cockpit prepping for the next flight and monitoring the fueling process. We needed 10;000 lbs of fuel. When the fueler hit 10;000 lbs I tried to get his attention to stop fueling. He didn't see or hear me so I got out of my seat in a hurry to stop him before he went over 10300 lbs. Once outside the plane I was able to talk to him and let him know that we had enough fuel. I was about to climb up the stairs back into the plane when I heard the fueler yell that the plane was rolling. I immediately ran up the stairs and jumped into the cockpit (R) seat and applied full brakes. At that point nothing happened and the aircraft was still rolling. I noticed that the parking brake low press warning was illuminated on the EICAS. I quickly tried to turn on the AUX HYD pump and instinctively pulled the parking brake handle. It was too late; before the HYD pump built pressure in the brake system; the nose of the Aircraft had rolled into the door of the truck. Suggestions: What went wrong; 1. The aircraft wasn't properly chocked prior to starting the fueling process.2. ZZZ is somewhat nonstandard in that they don't proved typical ramp handling/parking assistance. 3. As the sole pilot in the aircraft I should've been more deliberate/cautious making doubly sure that the parking brake was properly set and holding pressure prior to stepping off the aircraft.
Second reporter narrative
Landed in ZZZ airport from ZZZ2 at about XA:00Z. Once landed we conducted an after landing. We parked at the designated FBO and conducted the shutdown with APU checklist. We set the parking brake. The airport location had no FBO or FBO Services besides fueling. So we kept the parking brake engaged since we weren't chocked. The PIC went to go use the restroom while the FO Stayed to man the airplane and watch the fueler. I the PIC came out of the restroom and as I was walking towards the airplane I see a line tech sweeping up glass from the nose of the aircraft that stuck the fuel truck door. The FO filled me in on the aircraft damage.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.