C210 enters dca class B airspace without clearance.

Attributes
ACN	348110
Time
Date	199609
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cgs
State Reference	MD
Altitude	msl bound lower : 1700 msl bound upper : 1700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 2350 flight time type : 1000
ASRS Report	348110
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was on an IFR flight plan from hpn to cgs. WX was very clear day VMC. After crossing balance VOR I informed ATC I would like a VFR approach into cgs. The airport only has RNAV IFR approach and though the aircraft was RNAV equipped, I did not have RNAV approach charts on board. The WX was extremely clear and mid- afternoon. I was asked when I would like to cancel IFR. I canceled at about 2 mi from the airport and at 1700 ft MSL. ATC asked if I wanted to remain with him for advisories. I accepted and was given several TA's. I never received a clearance into the class B airspace which extended to 1400 ft MSL. Not being familiar with the area and nearly always flying IFR I was unaware of the floor of the class B airspace in the vicinity of cgs airport. Complacency with flying IFR and not having reviewed a VFR chart for the area resulted in an inadvertent transition from IFR to VFR and into the class B airspace. Canceling IFR while in class B airspace does not presuppose clearance into the airspace, even though the controller makes no note of the transition. Planning an IFR flight should also include VFR airspace awareness.

Original NASA ASRS Text

Title: C210 ENTERS DCA CLASS B AIRSPACE WITHOUT CLRNC.

Narrative: I WAS ON AN IFR FLT PLAN FROM HPN TO CGS. WX WAS VERY CLR DAY VMC. AFTER XING BAL VOR I INFORMED ATC I WOULD LIKE A VFR APCH INTO CGS. THE ARPT ONLY HAS RNAV IFR APCH AND THOUGH THE ACFT WAS RNAV EQUIPPED, I DID NOT HAVE RNAV APCH CHARTS ON BOARD. THE WX WAS EXTREMELY CLR AND MID- AFTERNOON. I WAS ASKED WHEN I WOULD LIKE TO CANCEL IFR. I CANCELED AT ABOUT 2 MI FROM THE ARPT AND AT 1700 FT MSL. ATC ASKED IF I WANTED TO REMAIN WITH HIM FOR ADVISORIES. I ACCEPTED AND WAS GIVEN SEVERAL TA'S. I NEVER RECEIVED A CLRNC INTO THE CLASS B AIRSPACE WHICH EXTENDED TO 1400 FT MSL. NOT BEING FAMILIAR WITH THE AREA AND NEARLY ALWAYS FLYING IFR I WAS UNAWARE OF THE FLOOR OF THE CLASS B AIRSPACE IN THE VICINITY OF CGS ARPT. COMPLACENCY WITH FLYING IFR AND NOT HAVING REVIEWED A VFR CHART FOR THE AREA RESULTED IN AN INADVERTENT TRANSITION FROM IFR TO VFR AND INTO THE CLASS B AIRSPACE. CANCELING IFR WHILE IN CLASS B AIRSPACE DOES NOT PRESUPPOSE CLRNC INTO THE AIRSPACE, EVEN THOUGH THE CTLR MAKES NO NOTE OF THE TRANSITION. PLANNING AN IFR FLT SHOULD ALSO INCLUDE VFR AIRSPACE AWARENESS.

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.