Small transport pilot in close proximity to TCA-B airspace in lax VFR corridor.

Attributes
ACN	270421
Time
Date	199404
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lax
State Reference	CA
Altitude	msl bound lower : 12500 msl bound upper : 12510
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax tower : ord
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 40 flight time total : 1090 flight time type : 20
ASRS Report	270421
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : far other anomaly other other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flying northwest bound san diego (myf) to san luis obispo (sbp) over class B (TCA) lax VFR on top, clouds at 1500 ft, tops 2600 ft. Used flight following san diego approach, coast approach, la approach going north intended to fly over class B at 12500 ft (which is also the top ceiling of controled airspace). I thought airspace was up to 'but not including' 12500 ft for class B, lax. When controller questioned my intentions for route of flight I stated 12500 ft would be my altitude. 'Above class B' no further problem over TCA. However, I did stay slightly higher, 12510 ft to be sure on top until I checked rule. I spoke to san diego approach TRACON supervisor later to clarify must be 12501.

Original NASA ASRS Text

Title: SMT PLT IN CLOSE PROX TO TCA-B AIRSPACE IN LAX VFR CORRIDOR.

Narrative: FLYING NW BOUND SAN DIEGO (MYF) TO SAN LUIS OBISPO (SBP) OVER CLASS B (TCA) LAX VFR ON TOP, CLOUDS AT 1500 FT, TOPS 2600 FT. USED FLT FOLLOWING SAN DIEGO APCH, COAST APCH, LA APCH GOING N INTENDED TO FLY OVER CLASS B AT 12500 FT (WHICH IS ALSO THE TOP CEILING OF CTLED AIRSPACE). I THOUGHT AIRSPACE WAS UP TO 'BUT NOT INCLUDING' 12500 FT FOR CLASS B, LAX. WHEN CTLR QUESTIONED MY INTENTIONS FOR RTE OF FLT I STATED 12500 FT WOULD BE MY ALT. 'ABOVE CLASS B' NO FURTHER PROB OVER TCA. HOWEVER, I DID STAY SLIGHTLY HIGHER, 12510 FT TO BE SURE ON TOP UNTIL I CHKED RULE. I SPOKE TO SAN DIEGO APCH TRACON SUPVR LATER TO CLARIFY MUST BE 12501.

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.