Narrative:

I was sitting in the left seat with my former student; a certificated private pilot; flying from the right seat as PIC and (PF). PF made a straight ahead but 'firm' landing on an 'option' clearance and the nose-wheel started to shimmy. We agreed that I; as the more experienced pilot would take control of the plane. I moved the yoke full aft and added power to lighten the load on the nose. The shimmying immediately stopped and we continued on a touch-and-go.I maintained control of the aircraft and flew the pattern to make a full-stop landing. I touched down normally and smoothly and gently lowered the nose in order to stop on the runway for a stop-and-go landing. At this point the nose shook violently and there was a scraping noise. Using differential braking I was able to bring the aircraft to a stop on the intersecting runway and advised the tower we needed assistance.upon exiting the airplane we discovered that the nose-wheel and axle had separated from the aircraft and that the aircraft had slid to a stop on the nose-wheel fork which was ground down. No other damage was apparent except for the nose-wheel fork. The ground crew assisted in moving the plane to its assigned parking spot with the use of a dolly under the ground-down fork.the PF understands that a more nose-high attitude on touchdown might have precluded the incident.

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Original NASA ASRS Text

Title: Cessna 150 pilot reported damage to the nose wheel after a hard landing while performing touch and goes.

Narrative: I was sitting in the left seat with my former student; a certificated private pilot; flying from the right seat as PIC and (PF). PF made a straight ahead but 'firm' landing on an 'option' clearance and the nose-wheel started to shimmy. We agreed that I; as the more experienced pilot would take control of the plane. I moved the yoke full aft and added power to lighten the load on the nose. The shimmying immediately stopped and we continued on a touch-and-go.I maintained control of the aircraft and flew the pattern to make a full-stop landing. I touched down normally and smoothly and gently lowered the nose in order to stop on the runway for a stop-and-go landing. At this point the nose shook violently and there was a scraping noise. Using differential braking I was able to bring the aircraft to a stop on the intersecting runway and advised the tower we needed assistance.Upon exiting the airplane we discovered that the nose-wheel and axle had separated from the aircraft and that the aircraft had slid to a stop on the nose-wheel fork which was ground down. No other damage was apparent except for the nose-wheel fork. The ground crew assisted in moving the plane to its assigned parking spot with the use of a dolly under the ground-down fork.The PF understands that a more nose-high attitude on touchdown might have precluded the incident.

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.