Narrative:

Landing gear collapse on landing. It is possible the gear was not locked in the down position. On contact with the runway they retracted. This plane has manual gear lever. The gear is spring loaded and with a bounce it retracted. Minimal damage to aircraft; landing gear collapsed on landing.

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Original NASA ASRS Text

Title: A 1964 M20C with a manual landing hear lever landed gear up after the gear retracted following a bounced landing.

Narrative: Landing gear collapse on landing. It is possible the gear was not locked in the down position. On contact with the runway they retracted. This plane has manual gear lever. The gear is spring loaded and with a bounce it retracted. Minimal damage to aircraft; landing gear collapsed on landing.

Data retrieved from NASA's ASRS site as of July 2013 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.