C172 flight examiner reported an near midair collision in the pattern of non-towered airport.

Attributes
ACN	1636597
Time
Date	201904
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	Takeoff
Flight Plan	None
Aircraft 2
Make Model Name	PA-34-200 Seneca I
Operating Under FAR Part	Part 91
Person 1
Function	Pilot Not Flying Instructor Check Pilot
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Flight Engineer
Experience	Flight Crew Last 90 Days 90 Flight Crew Total 44000 Flight Crew Type 2500
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 100 Vertical 100

Narrative:

On departure leg with a private pilot applicant. The applicant cleared to the left to begin his crosswind leg at 700 MSL. Initially it was clear and the student began his turn. The left pilot window immediately filled up with a piper seneca. The student froze for an instant and I took control of the aircraft and made an aggressive right turn to avoid a collision. I estimate a lateral clearance of 100 feet and vertical of 50-100 feet.we landed uneventfully as did the seneca.I went to the seneca after landing and requested and explanation from the instructor. Instructor was very confrontational and indicated having to go left rather than right on the go-around because of helicopters. Instructor never acknowledged seeing us although climbing from underneath and behind it is hard to believe we were not in sight. Neither my student nor I saw any airborne helicopters. There was nothing accomplished during our discussion and I departed the scene.

Original NASA ASRS Text

Title: C172 Flight Examiner reported an NMAC in the pattern of non-towered airport.

Narrative: On departure leg with a private pilot applicant. The applicant cleared to the left to begin his crosswind leg at 700 MSL. Initially it was clear and the student began his turn. The left pilot window immediately filled up with a Piper Seneca. The student froze for an instant and I took control of the aircraft and made an aggressive right turn to avoid a collision. I estimate a lateral clearance of 100 feet and vertical of 50-100 feet.We landed uneventfully as did the Seneca.I went to the Seneca after landing and requested and explanation from the instructor. Instructor was very confrontational and indicated having to go left rather than right on the go-around because of helicopters. Instructor never acknowledged seeing us although climbing from underneath and behind it is hard to believe we were not in sight. Neither my student nor I saw any airborne helicopters. There was nothing accomplished during our discussion and I departed the scene.

Data retrieved from NASA's ASRS site 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.