Flight instructor reported a near miss event at a controlled airport between VFR traffic in the land...

Attributes
ACN	1400182
Time
Date	201611
Local Time Of Day	0601-1200
Place
Locale Reference	PRC.Airport
State Reference	AZ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Helicopter
Flight Phase	Initial Approach
Person 1
Function	Pilot Not Flying Instructor
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 800 Flight Crew Type 400
Events
Anomaly	ATC Issue All Types Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 100 Vertical 100

Narrative:

Was cleared to enter traffic pattern on a left downwind. Descended to traffic pattern altitude on way to airport. Was told by tower traffic on an instrument approach for the intercepting runway off the right at 6;600 feet. Couldn't see traffic as my aircraft was at 6;000 feet and is high wing blocking the view. As student rolled out of intercepting downwind the traffic (helicopter) had descended and was crossing right in front of us. I immediately took over controls and made an evasive maneuver to prevent collision. Most of the time tower will not allow instrument approaches to the intersecting runway of the active. Or if they do they will make the aircraft either stay at or above at least 500 feet above the traffic pattern or while make the aircraft terminate the approach before entering the airport vicinity. That way the aircraft on the approach will not be flying right through the traffic pattern for the active runway.

Original NASA ASRS Text

Title: Flight Instructor reported a near miss event at a controlled airport between VFR traffic in the landing pattern and an aircraft on final for an intersecting runway from a practice instrument approach.

Narrative: Was cleared to enter traffic pattern on a left downwind. Descended to traffic pattern altitude on way to airport. Was told by tower traffic on an instrument approach for the intercepting runway off the right at 6;600 feet. Couldn't see traffic as my aircraft was at 6;000 feet and is high wing blocking the view. As student rolled out of intercepting downwind the traffic (Helicopter) had descended and was crossing right in front of us. I immediately took over controls and made an evasive maneuver to prevent collision. Most of the time Tower will not allow instrument approaches to the intersecting runway of the active. Or if they do they will make the aircraft either stay at or above at least 500 feet above the traffic pattern or while make the aircraft terminate the approach before entering the airport vicinity. That way the aircraft on the approach will not be flying right through the traffic pattern for the active runway.

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.

Flight instructor reported a near miss event at a controlled airport between VFR traffic in the landing pattern and an aircraft on final for an intersecting runway from a practice instrument approach.