C172 flight instructor reported stopping just past the hold short lines when an aircraft was observe...

Attributes
ACN	1484181
Time
Date	201709
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	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	None
Aircraft 2
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Person 1
Function	Pilot Not Flying Instructor
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 30 Flight Crew Total 1100 Flight Crew Type 800
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical
Miss Distance	Horizontal 100 Vertical 100

Narrative:

My student and I were initiating a training flight. We had just completed our takeoff checklist; and pulled up to the hold short lines on alpha for runway xxl. We made the radio call to tower that we were holding short and ready for takeoff. We received the clearance '(our call sign); cleared for takeoff runway xxl; on course.' I took the readback for the student. We cleared visually base and final legs for the approach side of runway xxl; and proceeded into position on the runway. Just short of the runway pavement; my student puts the brakes on hard and brings the plane to a full stop. A piper warrior was on approximately a 1/8 mi final at approximately 50 ft in altitude. The plane on final had been obscured by our wing and we did not see it. We did not have the time or the space to maneuver back behind the hold short line before the piper warrior landed.

Original NASA ASRS Text

Title: C172 flight instructor reported stopping just past the hold short lines when an aircraft was observed on short final.

Narrative: My student and I were initiating a training flight. We had just completed our takeoff checklist; and pulled up to the hold short lines on Alpha for Runway XXL. We made the radio call to Tower that we were holding short and ready for takeoff. We received the clearance '(Our call sign); cleared for takeoff runway XXL; on course.' I took the readback for the student. We cleared visually base and final legs for the approach side of Runway XXL; and proceeded into position on the runway. Just short of the runway pavement; my student puts the brakes on hard and brings the plane to a full stop. A Piper Warrior was on approximately a 1/8 mi final at approximately 50 ft in altitude. The plane on final had been obscured by our wing and we did not see it. We did not have the time or the space to maneuver back behind the hold short line before the Piper Warrior landed.

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.