Inadvertent penetration of class D airspace.

Attributes
ACN	318740
Time
Date	199510
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hhr
State Reference	CA
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : hhr tracon : den
Operator	general aviation : corporate
Make Model Name	Helicopter
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 3000 flight time type : 300
ASRS Report	318740
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	non adherence : far other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited penetrated airspace
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Transitioned hawthorne airport's western edge of their class D airspace from lax to the south and back to lax without contacting hawthorne tower. I did not realize I transitioned hawthorne airport's airspace until after the fact. Situation was unintentional due to navigation error.

Original NASA ASRS Text

Title: INADVERTENT PENETRATION OF CLASS D AIRSPACE.

Narrative: TRANSITIONED HAWTHORNE ARPT'S WESTERN EDGE OF THEIR CLASS D AIRSPACE FROM LAX TO THE S AND BACK TO LAX WITHOUT CONTACTING HAWTHORNE TWR. I DID NOT REALIZE I TRANSITIONED HAWTHORNE ARPT'S AIRSPACE UNTIL AFTER THE FACT. SIT WAS UNINTENTIONAL DUE TO NAV ERROR.

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.