GA flight instructor reported a near midair collision with an aircraft performing maneuvers over the...

Attributes
ACN	1546136
Time
Date	201805
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	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Direct Visual Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	None
Flight Plan	VFR
Person 1
Function	Pilot Not Flying Instructor
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 138 Flight Crew Type 118
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 200 Vertical 0

Narrative:

Was with a student doing a practice RNAV approach. We were at the proper altitude of 2500 feet; proper unicom of nearby airports; making position calls every 5NM with position and intentions. We were 3NM from the IAF of the IAP when TCAS alerted us of nearby traffic. My student was under the hood; and I maintained visual with the cessna aircraft. He was no factor as he passed from our 2 o'clock to our 11 o'clock. All of a sudden the cessna turned into a left steep turn which was converging directly onto us. It was close enough where I saw their aviator sunglasses; black headsets; and their faces. I took controls from my student and made evasive action; putting us into about a 70 degree dive and a 45 degree bank turning us 180 degree. We eventually turned back around and got back aligned with the RNAV and the cessna proceeded to do aerial work (stalls) directly over the IAF. Not only was he in an incredibly busy area; but he neglected to do procedure turns; was not on a local frequency; too low of an altitude for stalls or steep turns; and the wrong altitude for his heading. The flight instructor aboard the cessna was completely negligent for his student's safety as well as the other planes out in the area. Absolutely terrifying to know there are flight instructors like that out in those skies.

Original NASA ASRS Text

Title: GA flight instructor reported a NMAC with an aircraft performing maneuvers over the Initial Approach Fix.

Narrative: Was with a student doing a practice RNAV approach. We were at the proper altitude of 2500 feet; proper UNICOM of nearby airports; making position calls every 5NM with position and intentions. We were 3NM from the IAF of the IAP when TCAS alerted us of nearby traffic. My student was under the hood; and I maintained visual with the Cessna aircraft. He was no factor as he passed from our 2 o'clock to our 11 o'clock. All of a sudden the Cessna turned into a left steep turn which was converging directly onto us. It was close enough where I saw their aviator sunglasses; black headsets; and their faces. I took controls from my student and made evasive action; putting us into about a 70 degree dive and a 45 degree bank turning us 180 degree. We eventually turned back around and got back aligned with the RNAV and the Cessna proceeded to do aerial work (stalls) directly over the IAF. Not only was he in an incredibly busy area; but he neglected to do procedure turns; was not on a local frequency; too low of an altitude for stalls or steep turns; and the wrong altitude for his heading. The flight instructor aboard the Cessna was completely negligent for his student's safety as well as the other planes out in the area. Absolutely terrifying to know there are flight instructors like that out in those skies.

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.

GA flight instructor reported a near midair collision with an aircraft performing maneuvers over the initial approach fix.