Inexperienced pilot of light aircraft penetrates arsa.

Attributes
ACN	115327
Time
Date	198906
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ont
State Reference	CA
Altitude	msl bound lower : 3500 msl bound upper : 3500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bur
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 35 flight time total : 85 flight time type : 30
ASRS Report	115320
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited penetrated airspace none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying from sacramento direct bakersfield for a fuel stop, thence to fullerton via burbank and el monte. I was navigating along V-186 out of van nuys VOR by DME distance. I measured distances off my terminal chart with a sectional scale ruler and failed to divide those distances by 2. I had planned a descent out of burbank to 2500' over el monte and was going to locate el monte by DME distance. At el monte I planned to turn south towards fullerton and proceed under the TCA. Due to my scaling error of the map I initially mistook chino for el monte but decided after a few seconds chino wasn't el monte so I quickly triangulated myself off 2 vors and realized I was in chino's air traffic area and the ontario arsa. I turned south to get out of both then headed west to fullerton. The main cause of this incident was my not using due care in measuring distances off the chart.

Original NASA ASRS Text

Title: INEXPERIENCED PLT OF LIGHT ACFT PENETRATES ARSA.

Narrative: I WAS FLYING FROM SACRAMENTO DIRECT BAKERSFIELD FOR A FUEL STOP, THENCE TO FULLERTON VIA BURBANK AND EL MONTE. I WAS NAVIGATING ALONG V-186 OUT OF VAN NUYS VOR BY DME DISTANCE. I MEASURED DISTANCES OFF MY TERMINAL CHART WITH A SECTIONAL SCALE RULER AND FAILED TO DIVIDE THOSE DISTANCES BY 2. I HAD PLANNED A DSCNT OUT OF BURBANK TO 2500' OVER EL MONTE AND WAS GOING TO LOCATE EL MONTE BY DME DISTANCE. AT EL MONTE I PLANNED TO TURN S TOWARDS FULLERTON AND PROCEED UNDER THE TCA. DUE TO MY SCALING ERROR OF THE MAP I INITIALLY MISTOOK CHINO FOR EL MONTE BUT DECIDED AFTER A FEW SECONDS CHINO WASN'T EL MONTE SO I QUICKLY TRIANGULATED MYSELF OFF 2 VORS AND REALIZED I WAS IN CHINO'S ATA AND THE ONTARIO ARSA. I TURNED S TO GET OUT OF BOTH THEN HEADED W TO FULLERTON. THE MAIN CAUSE OF THIS INCIDENT WAS MY NOT USING DUE CARE IN MEASURING DISTANCES OFF THE CHART.

Data retrieved from NASA's ASRS site as of August 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.