DA40 Diamond Star
Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 211; Flight Crew Total 1040; Flight Crew Type 280
Situational Awareness
Conflict NMAC; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Separated Traffic
Human Factors; Procedure
While the reporting aircraft was on an extended left base turn; the aircraft that was supposed to follow the reporting traffic behind turned directly towards the reporting aircraft. The distance (horizontal) between the reporting and other aircraft was approximately 200ft according to G1000 TIS. Prior to the near miss; the other aircraft's CFI reported to have the traffic to follow 'in sight.' When the other aircraft turned towards the reporting aircraft on base; ATC promptly instructed the other aircraft to return to downwind immediately. Due to ATC's quick response; no evasive action was needed to be performed by the reporting aircraft. Evasive maneuvers would have been difficult due to a busy pattern. ATC's sharp observation prevented the problem to deteriorate.
GA pilot reported an NMAC with another aircraft that had turned to a wrong heading and was quickly corrected by ATC.