Narrative:

Clear day, great visibility, and PIC working radios. Called for clearance through ttn class D. Crew believed aircraft still clear of class D. Controller believed aircraft had entered without clearance.

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Original NASA ASRS Text

Title: AN ATCT LCL CTLR ADVISED FLC OF THEIR UNAUTH ENTRY INTO CLASS D. UNAUTH PENETRATION OF AIRSPACE.

Narrative: CLR DAY, GREAT VISIBILITY, AND PIC WORKING RADIOS. CALLED FOR CLRNC THROUGH TTN CLASS D. CREW BELIEVED ACFT STILL CLR OF CLASS D. CTLR BELIEVED ACFT HAD ENTERED WITHOUT CLRNC.

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.