<< >> NASA ASRS Report 338460, June 1996

Pilot of an small aircraft sel descended early during a VFR overflt of class B airspace resulting in erroneous penetration of that airspace since he had no contact with that airspace, but was in contact with his destination approach facility approximately 40 mi ahead.

Attributes
ACN	338460
Time
Date	199606
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ugn
State Reference	IL
Altitude	msl bound lower : 9500 msl bound upper : 9500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	other other : other pilot : instrument pilot : commercial pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 1800 flight time type : 250
ASRS Report	338460
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flying VFR from ggp to mke I was cruising at 10500 ft MSL along the lakeshore. I was above ord class B airspace. At 40 NM southeast of mke, I called mke approach. Approach gave me a transponder code. I read back the code and told them I was starting down. About 1 min later, approach said, 'radar contact maintain 9500 ft, I was not in his airspace yet.' just then I checked my sectional. I knew ord class B went until 10000 ft MSL, but I thought I was northeast of it. Factors contributing were communications with mke approach before radar contact was established. I stopped looking at the sectional thinking mke would take over. I did have mke in sight when I called approach. The correct action would have been to continue using the sectional the entire time.

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Original NASA ASRS Text

Title: PLT OF AN SMA SEL DSNDED EARLY DURING A VFR OVERFLT OF CLASS B AIRSPACE RESULTING IN ERRONEOUS PENETRATION OF THAT AIRSPACE SINCE HE HAD NO CONTACT WITH THAT AIRSPACE, BUT WAS IN CONTACT WITH HIS DEST APCH FACILITY APPROX 40 MI AHEAD.

Narrative: FLYING VFR FROM GGP TO MKE I WAS CRUISING AT 10500 FT MSL ALONG THE LAKESHORE. I WAS ABOVE ORD CLASS B AIRSPACE. AT 40 NM SE OF MKE, I CALLED MKE APCH. APCH GAVE ME A XPONDER CODE. I READ BACK THE CODE AND TOLD THEM I WAS STARTING DOWN. ABOUT 1 MIN LATER, APCH SAID, 'RADAR CONTACT MAINTAIN 9500 FT, I WAS NOT IN HIS AIRSPACE YET.' JUST THEN I CHKED MY SECTIONAL. I KNEW ORD CLASS B WENT UNTIL 10000 FT MSL, BUT I THOUGHT I WAS NE OF IT. FACTORS CONTRIBUTING WERE COMS WITH MKE APCH BEFORE RADAR CONTACT WAS ESTABLISHED. I STOPPED LOOKING AT THE SECTIONAL THINKING MKE WOULD TAKE OVER. I DID HAVE MKE IN SIGHT WHEN I CALLED APCH. THE CORRECT ACTION WOULD HAVE BEEN TO CONTINUE USING THE SECTIONAL THE ENTIRE TIME.

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.