C172 flight instructor reported an accidental runway incursion causing an aircraft to go-around.

Attributes
ACN	1707142
Time
Date	201912
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	None
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Instructor
Qualification	Flight Crew Multiengine Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 5085 Flight Crew Type 2500
Events
Anomaly	Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy Ground Incursion Runway
Miss Distance	Horizontal 3500 Vertical 300

Narrative:

While on a routine training flight; a runway incursion occurred. A search for traffic was made and a radio call announcing our (the student and I) intention for using runway xx for stop and go traffic operations (prior to crossing the runway hold line). After; we taxied into position on runway xx. It was at this time that we saw aircraft Y initiate a go-around from runway xy at ZZZ. No radio calls were received from aircraft Y. We (student and I) were not in contact with aircraft Y until after they initiated and announced a missed approach (the weather was VFR).the training aircraft's transponder was on and set to 1200. I checked the radio gear; and headsets of the training aircraft for proper operation with no abnormalities noted.

Original NASA ASRS Text

Title: C172 flight instructor reported an accidental runway incursion causing an aircraft to go-around.

Narrative: While on a routine training flight; a runway incursion occurred. A search for traffic was made and a radio call announcing our (the student and I) intention for using Runway XX for stop and go traffic operations (Prior to crossing the runway hold line). After; we taxied into position on Runway XX. It was at this time that we saw Aircraft Y initiate a go-around from Runway XY at ZZZ. No radio calls were received from Aircraft Y. We (Student and I) were not in contact with Aircraft Y until after they initiated and announced a missed approach (the weather was VFR).The training aircraft's transponder was on and set to 1200. I checked the radio gear; and headsets of the training aircraft for proper operation with no abnormalities noted.

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.