Instructor reported an near midair collision with another aircraft in the pattern while on final.

Attributes
ACN	1663203
Time
Date	201907
Local Time Of Day	0601-1200
Place
Locale Reference	HWO.Airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Person 1
Function	Instructor
Qualification	Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 860 Flight Crew Type 600
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 400 Vertical 0

Narrative:

Received instruction to make straight in runway 10R at north perry. Several aircraft in the pattern; multiple on downwind. 2 mile final; ATC instructed multiple aircraft to extend downwind. Aircraft Y; tail number unknown; turned base. Our aircraft was extremely close when they cut in front of us on final. They evaded with quick right turn and we executed a go-around. The student and myself were both on the controls; the lesson was on landings.

Original NASA ASRS Text

Title: Instructor reported an NMAC with another aircraft in the pattern while on final.

Narrative: Received instruction to make straight in Runway 10R at North Perry. Several aircraft in the pattern; multiple on downwind. 2 mile final; ATC instructed multiple aircraft to extend downwind. Aircraft Y; tail number unknown; turned base. Our aircraft was extremely close when they cut in front of us on final. They evaded with quick right turn and we executed a go-around. The student and myself were both on the controls; the lesson was on landings.

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.