PA28 pilot inadvertently enters class D airspace over tki.

Attributes
ACN	514260
Time
Date	200106
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tki.airport
State Reference	TX
Altitude	agl single value : 1800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Flight Phase	cruise : level
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : cfi
Experience	flight time last 90 days : 50 flight time total : 7000
ASRS Report	514260
Events
Anomaly	airspace violation : entry non adherence : far
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Penetrated class D airspace at tki while on the 046 degree radial of cowboy VOR. Did not call tower -- thought we were outside airspace.

Original NASA ASRS Text

Title: PA28 PLT INADVERTENTLY ENTERS CLASS D AIRSPACE OVER TKI.

Narrative: PENETRATED CLASS D AIRSPACE AT TKI WHILE ON THE 046 DEG RADIAL OF COWBOY VOR. DID NOT CALL TWR -- THOUGHT WE WERE OUTSIDE AIRSPACE.

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.