Narrative:

At approximately XB00, I unintentionally entered san diego class B airspace northwest of montgomery field without a clearance. I departed myf at about XA50. The tower gave me a 270 degree initial heading for climb out, then own navigation. I activated my VFR flight plan and flew to the coastline. I had planned to fly at 2500 ft north along the coast, then as assigned for the los angeles shoreline VFR transition through lax. After turning north and establishing a course toward the ocn VOR, I contacted socal to request flight following. Socal gave me a transponder code. Upon notification of radar contact, the controller informed me that I had entered and flown through the miramar departure corridor without clearance! He then gave me a climb to 4500 ft. I acknowledged, apologized, and started an immediate climb. Fortunately, there was no departure activity in the area at the time. This was my first flight into the san diego area and, though I thought I had done a thorough preflight study of the area, I had missed some key points. But, I was definitely unfamiliar with the complex airspace in san diego. The split airspace for class B was unfamiliar to me, and I simply missed it on the map! I spent more time planning my transition through los angeles class B airspace, and inadvertently missed the immediate departure details in the san diego area. I generally fly out of and around uncontrolled airports in northern california, and I usually get flight following in the air. I did not request flight following from the tower at departure. That alone would have prevented the incursion. This was primarily a lack of adequate knowledge of the airspace. I did not recognize the split airspace note: 32/18 and 100/68. I will now look more closely for these kinds of details when planning.

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Original NASA ASRS Text

Title: A C172 PLT, UNFAMILIAR WITH SAN, ENTERED CLASS B AIRSPACE WITHOUT A CLRNC.

Narrative: AT APPROX XB00, I UNINTENTIONALLY ENTERED SAN DIEGO CLASS B AIRSPACE NW OF MONTGOMERY FIELD WITHOUT A CLRNC. I DEPARTED MYF AT ABOUT XA50. THE TWR GAVE ME A 270 DEG INITIAL HDG FOR CLBOUT, THEN OWN NAV. I ACTIVATED MY VFR FLT PLAN AND FLEW TO THE COASTLINE. I HAD PLANNED TO FLY AT 2500 FT N ALONG THE COAST, THEN AS ASSIGNED FOR THE LOS ANGELES SHORELINE VFR TRANSITION THROUGH LAX. AFTER TURNING N AND ESTABLISHING A COURSE TOWARD THE OCN VOR, I CONTACTED SOCAL TO REQUEST FLT FOLLOWING. SOCAL GAVE ME A XPONDER CODE. UPON NOTIFICATION OF RADAR CONTACT, THE CTLR INFORMED ME THAT I HAD ENTERED AND FLOWN THROUGH THE MIRAMAR DEP CORRIDOR WITHOUT CLRNC! HE THEN GAVE ME A CLB TO 4500 FT. I ACKNOWLEDGED, APOLOGIZED, AND STARTED AN IMMEDIATE CLB. FORTUNATELY, THERE WAS NO DEP ACTIVITY IN THE AREA AT THE TIME. THIS WAS MY FIRST FLT INTO THE SAN DIEGO AREA AND, THOUGH I THOUGHT I HAD DONE A THOROUGH PREFLT STUDY OF THE AREA, I HAD MISSED SOME KEY POINTS. BUT, I WAS DEFINITELY UNFAMILIAR WITH THE COMPLEX AIRSPACE IN SAN DIEGO. THE SPLIT AIRSPACE FOR CLASS B WAS UNFAMILIAR TO ME, AND I SIMPLY MISSED IT ON THE MAP! I SPENT MORE TIME PLANNING MY TRANSITION THROUGH LOS ANGELES CLASS B AIRSPACE, AND INADVERTENTLY MISSED THE IMMEDIATE DEP DETAILS IN THE SAN DIEGO AREA. I GENERALLY FLY OUT OF AND AROUND UNCTLED ARPTS IN NORTHERN CALIFORNIA, AND I USUALLY GET FLT FOLLOWING IN THE AIR. I DID NOT REQUEST FLT FOLLOWING FROM THE TWR AT DEP. THAT ALONE WOULD HAVE PREVENTED THE INCURSION. THIS WAS PRIMARILY A LACK OF ADEQUATE KNOWLEDGE OF THE AIRSPACE. I DID NOT RECOGNIZE THE SPLIT AIRSPACE NOTE: 32/18 AND 100/68. I WILL NOW LOOK MORE CLOSELY FOR THESE KINDS OF DETAILS WHEN PLANNING.

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.