Unauthorized penetration of class B airspace by C-120 pilot.

Attributes
ACN	303641
Time
Date	199505
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : phx
State Reference	AZ
Altitude	msl bound lower : 6000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phx tracon : mht
Operator	general aviation : personal
Make Model Name	Cessna 120
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time last 90 days : 50 flight time total : 1500 flight time type : 50
ASRS Report	303641
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	inflight encounter other non adherence : published procedure 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 flying a C-120 and picked up a thermal. Temperature was 90 degrees F. I wanted to gain altitude for my flight to flg at 7000 ft MSL. I started at 3500 ft and climbed in the thermal at 2000 FPM. When I realized I might be climbing into the 6000 ft base sector of class B, I looked at the altimeter and saw that I was approaching 7000 ft MSL. I'm sure I entered into the class B without authorization. I should be more aware of my position while thermaling.

Original NASA ASRS Text

Title: UNAUTH PENETRATION OF CLASS B AIRSPACE BY C-120 PLT.

Narrative: I WAS FLYING A C-120 AND PICKED UP A THERMAL. TEMP WAS 90 DEGS F. I WANTED TO GAIN ALT FOR MY FLT TO FLG AT 7000 FT MSL. I STARTED AT 3500 FT AND CLBED IN THE THERMAL AT 2000 FPM. WHEN I REALIZED I MIGHT BE CLBING INTO THE 6000 FT BASE SECTOR OF CLASS B, I LOOKED AT THE ALTIMETER AND SAW THAT I WAS APCHING 7000 FT MSL. I'M SURE I ENTERED INTO THE CLASS B WITHOUT AUTHORIZATION. I SHOULD BE MORE AWARE OF MY POS WHILE THERMALING.

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.