Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 187
Inflight Event / Encounter Other / Unknown
Flight Crew Regained Aircraft Control; Flight Crew Requested ATC Assistance / Clarification
Human Factors; Environment - Non Weather Related; Airport
I was PM. On taxi out I noticed Aircraft Y parked just clear of 34L; on Taxiway A8. We proceeded normally for takeoff; completed checklists; and received takeoff clearance for 34L. Aircraft Y was still parked on Taxiway A8 facing east. Our takeoff roll was normal and we started rotation approximately around Taxiway A10. Passing Taxiway A8; our aircraft experienced an abrupt left roll due to the jet blast of Aircraft Y. We were approximately 50-100 ft in altitude. Passing 1000 ft; we configured for climb and I mentioned to the Captain that 'I knew that was going to happen.' Tower gave us the handoff to departure. Before switching frequencies; I mention to Tower that even though I assumed Aircraft Y was at idle power; we received a significant jet blast induced roll at rotation. I also mentioned that A8 wasn't the smartest place to park Aircraft Y.I noticed this hazard on taxi out and minimized its significance. I had experienced a similar situation in a different aircraft over 10 years ago. I failed to mention the hazard to the Captain and/or Ground Control. I write this report to highlight the hazard for SMF Ground Control and general Pilot awareness.
Air carrier First Officer reported an uncommanded roll shortly after takeoff due to the exhaust stream from a parked aircraft with engines running pointed toward the departure runway.