Small transport unauthorized penetration of class B airspace. Pilot deviation.

Attributes
ACN	295925
Time
Date	199502
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : bfi
State Reference	WA
Altitude	msl bound lower : 5500 msl bound upper : 5500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sea
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 36 flight time total : 1800 flight time type : 800
ASRS Report	295925
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other controllera
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:

Departed VFR bfi, nwbound. At 1000 ft, tower gave frequency for flight following. Contacted them, gave position and climb request. At this time under class B (floor 3500 ft) ATC said 'roger,' continued to climb. At 5600 ft ATC asked if I was familiar with class B airspace. I responded that I felt I was north of airspace and had received flight following. Controller stated that we had penetrated class B, to be more aware next time, and to climb to our requested altitude of 8500 ft. In the future, would ask for specific language to enter class B airspace.

Original NASA ASRS Text

Title: SMT UNAUTH PENETRATION OF CLASS B AIRSPACE. PLTDEV.

Narrative: DEPARTED VFR BFI, NWBOUND. AT 1000 FT, TWR GAVE FREQ FOR FLT FOLLOWING. CONTACTED THEM, GAVE POS AND CLB REQUEST. AT THIS TIME UNDER CLASS B (FLOOR 3500 FT) ATC SAID 'ROGER,' CONTINUED TO CLB. AT 5600 FT ATC ASKED IF I WAS FAMILIAR WITH CLASS B AIRSPACE. I RESPONDED THAT I FELT I WAS N OF AIRSPACE AND HAD RECEIVED FLT FOLLOWING. CTLR STATED THAT WE HAD PENETRATED CLASS B, TO BE MORE AWARE NEXT TIME, AND TO CLB TO OUR REQUESTED ALT OF 8500 FT. IN THE FUTURE, WOULD ASK FOR SPECIFIC LANGUAGE TO ENTER CLASS B AIRSPACE.

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.