Narrative:

While taxiing for a pleasure flight, I crossed a storm drain which was installed across the taxiway. The nosewheel dipped into the drain and there was a propeller strike which was not known by me or my passenger (an ATP). Runup and flight exhibited no unusual operation, but the tower notified me that someone reported a possible propeller strike. Upon shutdown, I found that, indeed, there had been a propeller strike. The drain was a portion of the active taxiway (meaning I did not venture off taxiway) and was perpendicular (crossed) the taxiway. In my opinion, the drain needs to be designed with a shallower depth and wider drain. Taxi speed was at a 'brisk walk' speed. Callback conversation with reporter revealed the following information: reporter indicated they were actually in a parking area north of taxiway I and north and just east of taxiway D. Neither pilot claimed they knew they had a propeller strike.

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Original NASA ASRS Text

Title: SMA PLT FLEW THE ACFT AFTER BEING ADVISED THAT THEY HAD A PROP STRIKE XING A STORM DRAIN IN THE TXWY AT LVK.

Narrative: WHILE TAXIING FOR A PLEASURE FLT, I CROSSED A STORM DRAIN WHICH WAS INSTALLED ACROSS THE TXWY. THE NOSEWHEEL DIPPED INTO THE DRAIN AND THERE WAS A PROP STRIKE WHICH WAS NOT KNOWN BY ME OR MY PAX (AN ATP). RUNUP AND FLT EXHIBITED NO UNUSUAL OP, BUT THE TWR NOTIFIED ME THAT SOMEONE RPTED A POSSIBLE PROP STRIKE. UPON SHUTDOWN, I FOUND THAT, INDEED, THERE HAD BEEN A PROP STRIKE. THE DRAIN WAS A PORTION OF THE ACTIVE TXWY (MEANING I DID NOT VENTURE OFF TXWY) AND WAS PERPENDICULAR (CROSSED) THE TXWY. IN MY OPINION, THE DRAIN NEEDS TO BE DESIGNED WITH A SHALLOWER DEPTH AND WIDER DRAIN. TAXI SPD WAS AT A 'BRISK WALK' SPD. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR INDICATED THEY WERE ACTUALLY IN A PARKING AREA N OF TXWY I AND N AND JUST E OF TXWY D. NEITHER PLT CLAIMED THEY KNEW THEY HAD A PROP STRIKE.

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.