Tecnam P2006T instructor reported traffic making nonstandard traffic pattern entry; resulted in a ne...

Attributes
ACN	1574545
Time
Date	201809
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Aircraft 2
Make Model Name	Lancair ES
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 1750
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 30 Vertical 30

Narrative:

I was conducting a training flight with two students. We were practicing landings with traffic patterns. We were constantly reporting our position (each pattern leg) on CTAF frequency. An aircraft reported on CTAF frequency 5 miles north of the field and reported intention to enter left downwind runway xx. We were on the upwind; turning crosswind of runway xx when [aircraft Y] entered direct downwind; crossing the extended centerline of runway xx and crossing our path 30 ft. From us without reporting. I had to take controls from my student and take an evasive action pitching down to avoid collision. It didn't seem like the pilot of the aircraft was looking outside as he didn't see us right in front of him slightly below. The pilot of [aircraft Y] didn't enter at 45 degrees to the downwind as recommended in aim for uncontrolled airports creating a hazardous situation that might have resulted in mid air collision and didn't report his position so that traffic in pattern (us) could look for him. I have 2 students that were witnesses to this.

Original NASA ASRS Text

Title: Tecnam P2006T instructor reported traffic making nonstandard traffic pattern entry; resulted in a NMAC.

Narrative: I was conducting a training flight with two students. We were practicing landings with traffic patterns. We were constantly reporting our position (each pattern leg) on CTAF frequency. An aircraft reported on CTAF frequency 5 miles north of the field and reported intention to enter left downwind runway XX. We were on the upwind; turning crosswind of runway XX when [Aircraft Y] entered direct downwind; crossing the extended centerline of runway XX and crossing our path 30 ft. from us without reporting. I had to take controls from my student and take an evasive action pitching down to avoid collision. It didn't seem like the pilot of the aircraft was looking outside as he didn't see us right in front of him slightly below. The pilot of [Aircraft Y] didn't enter at 45 degrees to the downwind as recommended in AIM for uncontrolled airports creating a hazardous situation that might have resulted in mid air collision and didn't report his position so that traffic in pattern (us) could look for him. I have 2 students that were witnesses to this.

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.

Tecnam P2006T instructor reported traffic making nonstandard traffic pattern entry; resulted in a near midair collision.