Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 50; Flight Crew Total 650; Flight Crew Type 650
Situational Awareness
Conflict NMAC; Deviation - Speed All Types
Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action
Human Factors
When on a traffic pattern visual approach to 32R at BFI; on the final approach leg a helicopter cut in front of [our] C152 at the same altitude. The helicopter was supposed to follow the C152 before landing on 'PAD6'. The flight instructor on the C152 decided to go around to avoid a mid-air collision with a helicopter; which caused the airspeed in the C152 to substantially drop at a low altitude.When the Tower was queried about the position of the helicopter; the Tower mentioned the helicopter should have followed the C152.
C152 instructor pilot reported a NMAC with a helicopter in the pattern at BFI airport.