Narrative:

Arrived lakeland, fl, for fly-in event. Landed runway 9L, which is normally a taxiway. Told to follow plane in front, taildragger about 100 ft ahead. Didn't notice active runway 9R and taxied across without clearance. No incident! Tower never advised to switch to ground. Though no aircraft taking off at time I crossed runway 9R, it was unnerving. Event officials (FAA) need to advise all aircraft to contact ground or have line personnel direct traffic.

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Original NASA ASRS Text

Title: C172 LANDED RWY 9L, NORMALLY A TXWY, AND CLRED TO FOLLOW ACFT AHEAD. DID NOT REALIZE CROSSED RWY 9R WITHOUT CLRNC. TWR HAD NOT CLRED ACFT TO CONTACT GND.

Narrative: ARRIVED LAKELAND, FL, FOR FLY-IN EVENT. LANDED RWY 9L, WHICH IS NORMALLY A TXWY. TOLD TO FOLLOW PLANE IN FRONT, TAILDRAGGER ABOUT 100 FT AHEAD. DIDN'T NOTICE ACTIVE RWY 9R AND TAXIED ACROSS WITHOUT CLRNC. NO INCIDENT! TWR NEVER ADVISED TO SWITCH TO GND. THOUGH NO ACFT TAKING OFF AT TIME I CROSSED RWY 9R, IT WAS UNNERVING. EVENT OFFICIALS (FAA) NEED TO ADVISE ALL ACFT TO CONTACT GND OR HAVE LINE PERSONNEL DIRECT TFC.

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.