A C172 instructor pilot reported taking evasive action after seeing traffic reported by the tower on...

Attributes
ACN	878686
Time
Date	201003
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 380 Flight Crew Type 50
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 200 Vertical 0

Narrative:

Was doing closed traffic pattern operations. Was at the mid-field left downwind. There was another C172 ahead of us on downwind. Another C172 was approaching from the north and tower advised that aircraft to follow our aircraft. Tower confirmed several times that the aircraft to follow was the second C172 on downwind and not the first. Student was flying and pointed to traffic on final for the same runway. I looked to the left and confirmed that sighting and then scanned back to the right. I observed the conflicting traffic making a right turn to downwind in front of us. Separation was approximately 200 ft estimated. I immediately took controls from the student and initiated a left dive to avoid the other aircraft.

Original NASA ASRS Text

Title: A C172 Instructor Pilot reported taking evasive action after seeing traffic reported by the tower on downwind in the same vicinity as his aircraft also in a downwind position.

Narrative: Was doing closed traffic pattern operations. Was at the mid-field left downwind. There was another C172 ahead of us on downwind. Another C172 was approaching from the north and tower advised that aircraft to follow our aircraft. Tower confirmed several times that the aircraft to follow was the second C172 on downwind and not the first. Student was flying and pointed to traffic on final for the same runway. I looked to the left and confirmed that sighting and then scanned back to the right. I observed the conflicting traffic making a right turn to downwind in front of us. Separation was approximately 200 FT estimated. I immediately took controls from the student and initiated a left dive to avoid the other aircraft.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A C172 instructor pilot reported taking evasive action after seeing traffic reported by the tower on downwind in the same vicinity as his aircraft also in a downwind position.