Narrative:

While at cruise at 2;200 MSL with toledo approach providing VFR traffic advisories; we had a [low wing] private plane pass under us at less than 200 feet separation. No indication that the piper saw us as they did not deviate from flight path. Upon query to approach control; they said they had a 'ghost' showing in that area; but the signal was faint and they were not sure if it was an echo of our signal. Completed mission without further incident.

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Original NASA ASRS Text

Title: A VFR Helicopter pilot at 2;200 feet with TOL ATC traffic advisories reported a near miss after a single engine aircraft passed 200 feet beneath him without an ATC advisory. ATC reported a faint 'ghost' target.

Narrative: While at cruise at 2;200 MSL with Toledo Approach providing VFR traffic advisories; we had a [low wing] private plane pass under us at less than 200 feet separation. No indication that the Piper saw us as they did not deviate from flight path. Upon query to approach control; they said they had a 'ghost' showing in that area; but the signal was faint and they were not sure if it was an echo of our signal. Completed mission without further 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.