Reporter suspects he may have climbed above the floor of the class B airspace.

Attributes
ACN	302593
Time
Date	199504
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mzb airport : myf
State Reference	CA
Altitude	msl bound lower : 6800 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : san artcc : zdv
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 10 flight time total : 400 flight time type : 50
ASRS Report	302593
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Sky conditions scattered with tops approximately 5000-6000 ft. After departing VFR from myf I had to navigation around scattered clouds while maintaining appropriate distance from them and removing outside of the class B airspace. Abeam the del mar race track and flying at about 5500 ft, I initiated a climb to distance myself from nearby cloud formations. I forgot that the floor for the class B airspace in this area is 6800 ft. As I overflew crq at about 8000 ft (still climbing), I now realize that my flight path may have clipped the edge of class B airspace. I had intended to contact san departure during climb out to get a clearance to enter class B. I defend this action while concentrating on maneuvering around the clouds. In retrospect by contacting departure it would have been much easier to avoid clouds. Although I'm instrument rated I am not current so filing IFR was not an option. Also, since receiving my instrument rating I have become less proficient in using VFR charts. Although I had a current san VFR terminal area chart and was using it to navigation, my lack of recent experience with having to worry about the class B allowed me to forget details for the airspace structure that I had memorized before I started my instrument training.

Original NASA ASRS Text

Title: RPTR SUSPECTS HE MAY HAVE CLBED ABOVE THE FLOOR OF THE CLASS B AIRSPACE.

Narrative: SKY CONDITIONS SCATTERED WITH TOPS APPROX 5000-6000 FT. AFTER DEPARTING VFR FROM MYF I HAD TO NAV AROUND SCATTERED CLOUDS WHILE MAINTAINING APPROPRIATE DISTANCE FROM THEM AND REMOVING OUTSIDE OF THE CLASS B AIRSPACE. ABEAM THE DEL MAR RACE TRACK AND FLYING AT ABOUT 5500 FT, I INITIATED A CLB TO DISTANCE MYSELF FROM NEARBY CLOUD FORMATIONS. I FORGOT THAT THE FLOOR FOR THE CLASS B AIRSPACE IN THIS AREA IS 6800 FT. AS I OVERFLEW CRQ AT ABOUT 8000 FT (STILL CLBING), I NOW REALIZE THAT MY FLT PATH MAY HAVE CLIPPED THE EDGE OF CLASS B AIRSPACE. I HAD INTENDED TO CONTACT SAN DEP DURING CLBOUT TO GET A CLRNC TO ENTER CLASS B. I DEFEND THIS ACTION WHILE CONCENTRATING ON MANEUVERING AROUND THE CLOUDS. IN RETROSPECT BY CONTACTING DEP IT WOULD HAVE BEEN MUCH EASIER TO AVOID CLOUDS. ALTHOUGH I'M INST RATED I AM NOT CURRENT SO FILING IFR WAS NOT AN OPTION. ALSO, SINCE RECEIVING MY INST RATING I HAVE BECOME LESS PROFICIENT IN USING VFR CHARTS. ALTHOUGH I HAD A CURRENT SAN VFR TERMINAL AREA CHART AND WAS USING IT TO NAV, MY LACK OF RECENT EXPERIENCE WITH HAVING TO WORRY ABOUT THE CLASS B ALLOWED ME TO FORGET DETAILS FOR THE AIRSPACE STRUCTURE THAT I HAD MEMORIZED BEFORE I STARTED MY INST TRAINING.

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.