Narrative:

This was my first visit to the hayward executive airport (khwd).I checked the taxi diagrams prior to calling ground. There was no mention on the diagram of the location of the run-up area.I had just fueled up at the self-service fuel station. I obtained taxi clearance from the ground controller to taxi along alpha and hold short of runway 28L.I began taxing along alpha looking for a sign or indication of the run-up area. I didn't see any signs clearly pointing to the run-up area. I continued down the taxiway and stopped on a concrete pad that the looked like a run-up area about 630 feet from the portions of the runway useable for takeoff and about 1;320 feet from the portions of the runway useable for landing.the ground controller indicated that I was on the active runway; at which point I realized that even though I was about 550 feet from the portions of the runway useable for take-off; I had crossed the hold short line; not expecting it to be so far removed from the useable portions of the runway.my lesson learned is to ask people familiar with the airport; such as the administrative staff or FBO personnel to point out to me any details I am lacking from the airport diagram. Also; I learned to not make assumptions about where airport markings might exist; but to watch for them carefully.

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Original NASA ASRS Text

Title: A pilot new to the Hayward airport was unable to determine the location of the run-up area and subsequently experienced a runway incursion.

Narrative: This was my first visit to the Hayward Executive Airport (KHWD).I checked the taxi diagrams prior to calling ground. There was no mention on the diagram of the location of the run-up area.I had just fueled up at the self-service fuel station. I obtained taxi clearance from the ground controller to taxi along Alpha and hold short of Runway 28L.I began taxing along Alpha looking for a sign or indication of the run-up area. I didn't see any signs clearly pointing to the run-up area. I continued down the taxiway and stopped on a concrete pad that the looked like a run-up area about 630 feet from the portions of the runway useable for takeoff and about 1;320 feet from the portions of the runway useable for landing.The ground controller indicated that I was on the active runway; at which point I realized that even though I was about 550 feet from the portions of the runway useable for take-off; I had crossed the hold short line; not expecting it to be so far removed from the useable portions of the runway.My lesson learned is to ask people familiar with the airport; such as the administrative staff or FBO personnel to point out to me any details I am lacking from the airport diagram. Also; I learned to not make assumptions about where airport markings might exist; but to watch for them carefully.

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.