C150 instructor pilot reported a near midair collision while flying midfield over a non-towered airp...

Narrative:

The occurrence was a narrowly-avoided mid-air collision in the traffic pattern at ZZZ. ZZZ has runways 05-23 with an 800 ft AGL traffic pattern altitude. Wind favored runway 5 at ZZZ. We were approaching from the southeast; and were tracking roughly 320 at 1;800 ft MSL for a mid-field fly-over to teardrop into a 45-degree entry to left downwind runway 05. During my visual scan; I spotted traffic at our 11 o'clock; level; and heading straight at us. I immediately initiated a vx climb to avoid the traffic. Our nose was too high for me to see the other aircraft for long; but I do recall being at a slightly higher altitude before losing visual. My student (in the left seat) reported it flew directly under us and recalled blue paint. Based on this; we concluded we could not have cleared him by more than 200 ft. I decided to climb instead of descend; taking into consideration we were in the vicinity of a traffic pattern; most aircraft would be descending; and we did not want to descend onto the pattern. Ground personnel confirmed the other aircraft's position; they observed it flying 45 degrees to the right of runway heading at the approach end of runway 05; at a relatively equal altitude to ours.

Original NASA ASRS Text

Title: C150 instructor pilot reported a NMAC while flying midfield over a non-towered airport 1000 ft above the traffic pattern altitude.

Narrative: The occurrence was a narrowly-avoided mid-air collision in the traffic pattern at ZZZ. ZZZ has runways 05-23 with an 800 ft AGL traffic pattern altitude. Wind favored runway 5 at ZZZ. We were approaching from the SE; and were tracking roughly 320 at 1;800 ft MSL for a mid-field fly-over to teardrop into a 45-degree entry to left downwind runway 05. During my visual scan; I spotted traffic at our 11 o'clock; level; and heading straight at us. I immediately initiated a Vx climb to avoid the traffic. Our nose was too high for me to see the other aircraft for long; but I do recall being at a slightly higher altitude before losing visual. My student (in the left seat) reported it flew directly under us and recalled blue paint. Based on this; we concluded we could not have cleared him by more than 200 ft. I decided to climb instead of descend; taking into consideration we were in the vicinity of a traffic pattern; most aircraft would be descending; and we did not want to descend onto the pattern. Ground personnel confirmed the other aircraft's position; they observed it flying 45 degrees to the right of runway heading at the approach end of runway 05; at a relatively equal altitude to ours.

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.

Attributes
ACN	1373815
Time
Date	201607
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	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 105 Flight Crew Total 365 Flight Crew Type 61
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 0 Vertical 200

C150 instructor pilot reported a near midair collision while flying midfield over a non-towered airport 1000 ft above the traffic pattern altitude.