Narrative:

On taxi out for flight, we received an indication that felt and sounded as though we taxied over a piece of debris. We slowed then stopped to inspect the area and aircraft. The flight attendant was also queried and said he did not see anything or damage. Convinced we had taxied over debris, we called operations to have it found/removed, and proceeded. The flight to destination and return were uneventful. Upon completion of each flight a complete postflt was done (without indication). Upon preflight for next flight, the first officer noticed the left ob static wick missing and subsequently a dent in the aileron horn. Maintenance was called. They indicated that an aircraft had received similar damage that morning in the same taxi area by striking a portable light stand that had not been positioned clear of the taxi area.

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Original NASA ASRS Text

Title: AN ATR42 WHILE TAXIING FOR TKOF STRUCK A PORTABLE LIGHT STAND PLACED ADJACENT TO THE TXWY INCURRING DAMAGE TO THE L WING STATIC WICK AND AILERON CTL HORN.

Narrative: ON TAXI OUT FOR FLT, WE RECEIVED AN INDICATION THAT FELT AND SOUNDED AS THOUGH WE TAXIED OVER A PIECE OF DEBRIS. WE SLOWED THEN STOPPED TO INSPECT THE AREA AND ACFT. THE FLT ATTENDANT WAS ALSO QUERIED AND SAID HE DID NOT SEE ANYTHING OR DAMAGE. CONVINCED WE HAD TAXIED OVER DEBRIS, WE CALLED OPS TO HAVE IT FOUND/REMOVED, AND PROCEEDED. THE FLT TO DEST AND RETURN WERE UNEVENTFUL. UPON COMPLETION OF EACH FLT A COMPLETE POSTFLT WAS DONE (WITHOUT INDICATION). UPON PREFLT FOR NEXT FLT, THE FO NOTICED THE L OB STATIC WICK MISSING AND SUBSEQUENTLY A DENT IN THE AILERON HORN. MAINT WAS CALLED. THEY INDICATED THAT AN ACFT HAD RECEIVED SIMILAR DAMAGE THAT MORNING IN THE SAME TAXI AREA BY STRIKING A PORTABLE LIGHT STAND THAT HAD NOT BEEN POSITIONED CLR OF THE TAXI AREA.

Data retrieved from NASA's ASRS site as of July 2007 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.