Citation X (C750)
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Environment - Non Weather Related; Human Factors
During descent into BOS; numerous delay vectors and speed reductions were assigned by ATC. We were sequenced behind an Airbus with approximately 8 - 10 miles separation during the arrival. While descending through approximately 8;000 FT MSL; autopilot engaged; airspeed below 250 KTS; we experienced wake turbulence presumably from the Airbus ahead of us. We experienced an arrested descent; sudden abrupt roll to the right and left; followed by an increased descent; sudden abrupt roll to the right and left; followed by several abrupt bumps. The entire event was approximately 5 seconds. One passenger reported their neck and back was injured after parking on general aviation ramp. Medical attention was offered but passenger refused the offer. Passengers were not wearing seat belts during this event though the seat belt sign was on prior to the incident. There should be some legal enforcement for a Part 91 flight requiring passenger to comply with signs; and crew member instruction like a Part 135/121 flight operation.
As we descended through approximately 8;000 FT; autopilot engaged; our airspeed began to slow below 250 KTS. I began to make an adjustment and we entered an area of turbulence. We experienced an arrested descent; followed by an increased descent and a bank to the right of approximately 15 degrees. This was followed by 3 short 'vertical bumps' and a bank to the left of approximately 10 degrees. The entire encounter lasted between 3 and 5 seconds. The turbulence was never more than what I would characterize as moderate. I think it was probably wake turbulence from the Airbus.
CE-750 flight crew reported wake vortex encounter on arrival into BOS in trail of an Airbus. Aircraft rolled in response and one passenger; not wearing a seatbelt; reported back and neck pain.