MO2T departure from oak concerned about class B entry.

Attributes
ACN	584835
Time
Date	200306
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo.airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : nct.tracon
Operator	general aviation : personal
Make Model Name	Bravo
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Aircraft 2
Controlling Facilities	tracon : nct.tracon
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot oversight : pic
Experience	flight time total : 3500
ASRS Report	584835
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer oversight : pic
Events
Anomaly	airspace violation : entry conflict : airborne less severe non adherence : published procedure
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 6000 vertical : 800
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I departed oak en route to palo alto. Then mid san mateo bridge, I changed my mind and destination to sck. I have a color GPS. I have drawn my flight plan and written in the altitude. I put an 'X' on the map where I saw an air carrier A320 fly by about 800 ft above me and 1/2 mi away. I also saw the traffic on my TCASII. I was monitoring 135.4, norcal. They announced me to air carrier A320 and said I was in the B airspace. Of course I don't know for sure ATC was talking about me since there was no positive radar identify or communication with me. ATC asked the air carrier what kind of airplane he was passing over and he said a mooney. I don't understand why ATC said I was in class B airspace, if he was taking about me.

Original NASA ASRS Text

Title: MO2T DEP FROM OAK CONCERNED ABOUT CLASS B ENTRY.

Narrative: I DEPARTED OAK ENRTE TO PALO ALTO. THEN MID SAN MATEO BRIDGE, I CHANGED MY MIND AND DEST TO SCK. I HAVE A COLOR GPS. I HAVE DRAWN MY FLT PLAN AND WRITTEN IN THE ALT. I PUT AN 'X' ON THE MAP WHERE I SAW AN ACR A320 FLY BY ABOUT 800 FT ABOVE ME AND 1/2 MI AWAY. I ALSO SAW THE TFC ON MY TCASII. I WAS MONITORING 135.4, NORCAL. THEY ANNOUNCED ME TO ACR A320 AND SAID I WAS IN THE B AIRSPACE. OF COURSE I DON'T KNOW FOR SURE ATC WAS TALKING ABOUT ME SINCE THERE WAS NO POSITIVE RADAR IDENT OR COM WITH ME. ATC ASKED THE ACR WHAT KIND OF AIRPLANE HE WAS PASSING OVER AND HE SAID A MOONEY. I DON'T UNDERSTAND WHY ATC SAID I WAS IN CLASS B AIRSPACE, IF HE WAS TAKING ABOUT ME.

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.