Flight instructor reported a near midair collision with pattern traffic.

Attributes
ACN	1655557
Time
Date	201906
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	Climb
Route In Use	None
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	None
Flight Plan	None
Person 1
Function	Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 112 Flight Crew Total 650 Flight Crew Type 600
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 100 Vertical 0

Narrative:

Our aircraft was turning crosswind when another aircraft asked for a traffic advisory but other aircraft had not specified airport of intention. As our aircraft started turn to downwind we went to ask which airport the other plane was talking to help give a traffic advisory at which point we noticed other aircraft was already entering the pattern right in front of us. Emergency descent had to be performed to avoid midair collision with other aircraft who had made no radio calls about position or entry. A contributing factor to this could be that we had not made a 'turning downwind' radio call as we were still turning to the downwind when the event occurred.

Original NASA ASRS Text

Title: Flight instructor reported a NMAC with pattern traffic.

Narrative: Our aircraft was turning crosswind when another aircraft asked for a traffic advisory but other aircraft had not specified airport of intention. As our aircraft started turn to downwind we went to ask which airport the other plane was talking to help give a traffic advisory at which point we noticed other aircraft was already entering the pattern right in front of us. Emergency descent had to be performed to avoid midair collision with other aircraft who had made no radio calls about position or entry. A contributing factor to this could be that we had not made a 'turning downwind' radio call as we were still turning to the downwind when the event occurred.

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.