Narrative:

After takeoff I noticed that there seemed to be a lot of noise in the cockpit; I checked the pressure seals and everything seemed fine. On turning toward the airport for the approach the canopy locking pin sheared and the canopy separated from the aircraft. I called the tower and reported losing the canopy and that I would return to [departure airport]! I did not [request priority handling] as the aircraft was safe to fly. I landed the aircraft and replaced the canopy.

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Original NASA ASRS Text

Title: A deHavilland pilot reported losing the canopy in flight and returning to departure airport for a precautionary landing.

Narrative: After takeoff I noticed that there seemed to be a lot of noise in the cockpit; I checked the pressure seals and everything seemed fine. On turning toward the airport for the approach the canopy locking pin sheared and the canopy separated from the aircraft. I called the Tower and reported losing the canopy and that I would return to [departure airport]! I did not [request priority handling] as the aircraft was safe to fly. I landed the aircraft and replaced the canopy.

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.