Flight Crew Private; Flight Crew Instrument
Flight Crew Last 90 Days 50; Flight Crew Total 1150; Flight Crew Type 1000
Situational Awareness
Conflict Airborne Conflict; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
General None Reported / Taken
Human Factors
Departing VFR south on RWY 13 Right Blake Island departure. After take-off; right turn to crosswind; I continued at 800 ft. flying to the shoreline towards the Fauntleroy ferry dock. Landing traffic for SeaTac was overhead and I maintain focus of keeping altitude at 800 ft. and visual separation from traffic. I failed to turn downwind as per VFR departure procedure before direct to ferry dock.
Columbia 400 pilot reported deviating from published procedure on departure from BFI.