An instructor with student on downwind in a DA42 reports near midair collision with with a DA20 ente...

Attributes
ACN	889014
Time
Date	201005
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	DA42 Twin Star
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	DA20-C1 Eclipse
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	None
Person 1
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 2800 Flight Crew Type 200
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 100 Vertical 300

Narrative:

I had a near miss in the pattern. I was doing an end of course check in the DA42 with a multi private student. We had a 20 KT tailwind on left downwind. One other DA42 was in the pattern. After our first takeoff we were directed to a left downwind. A DA20-C1 called in from the south practice area and they were directed to a left base entry; and we were to follow that aircraft. The other DA42 was ahead of us. The student looked for traffic and saw the twinstar on base and assumed it was the DA20-C1. I was sure it wasn't and kept scanning. We 'met up' on the downwind to base turn with the katana about 300 ft below us. Fortunately the CFI in the DA20-C1 also saw us about the same time. I took control from the student and did a hard right turn then back to the left to come in behind the DA20-C1. The instructor in the DA20-C1 saw us about the same time and also took evasive action.

Original NASA ASRS Text

Title: An instructor with student on downwind in a DA42 reports NMAC with with a DA20 entering the pattern on the base leg as instructed by the Tower.

Narrative: I had a near miss in the pattern. I was doing an end of course check in the DA42 with a multi private student. We had a 20 KT tailwind on left downwind. One other DA42 was in the pattern. After our first takeoff we were directed to a left downwind. A DA20-C1 called in from the south practice area and they were directed to a left base entry; and we were to follow that aircraft. The other DA42 was ahead of us. The student looked for traffic and saw the Twinstar on base and assumed it was the DA20-C1. I was sure it wasn't and kept scanning. We 'met up' on the downwind to base turn with the Katana about 300 FT below us. Fortunately the CFI in the DA20-C1 also saw us about the same time. I took control from the student and did a hard right turn then back to the left to come in behind the DA20-C1. The instructor in the DA20-C1 saw us about the same time and also took evasive action.

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.

An instructor with student on downwind in a DA42 reports near midair collision with with a DA20 entering the pattern on the base leg as instructed by the tower.