Narrative:

After attending cable air show, I departed runway 24 ccb on a left crosswind departure with full intentions of staying clear of ont arsa. Oncoming traffic required me to initiate an immediate climb for spacing. I inadvertently entered ont's arsa west/O radio contact. Upon knowledge of my error, I contacted ont ATC immediately for arsa transition, which they granted.

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Original NASA ASRS Text

Title: PLT OF SMA HAD NMAC WITH ANOTHER SMA IN PROX TO ONT ARSA.

Narrative: AFTER ATTENDING CABLE AIR SHOW, I DEPARTED RWY 24 CCB ON A LEFT XWIND DEP WITH FULL INTENTIONS OF STAYING CLR OF ONT ARSA. ONCOMING TFC REQUIRED ME TO INITIATE AN IMMEDIATE CLB FOR SPACING. I INADVERTENTLY ENTERED ONT'S ARSA W/O RADIO CONTACT. UPON KNOWLEDGE OF MY ERROR, I CONTACTED ONT ATC IMMEDIATELY FOR ARSA TRANSITION, WHICH THEY GRANTED.

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.