Small aircraft descends through ceiling of class B on evasive action with second aircraft.

Attributes
ACN	257863
Time
Date	199311
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tpa
State Reference	FL
Altitude	msl bound lower : 9600 msl bound upper : 10600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : tpa
Operator	general aviation : personal
Make Model Name	Small Transport
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 80 flight time total : 3100 flight time type : 2100
ASRS Report	257863
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While flying VFR at 10600 ft in the climb, ATC made a traffic call to us. Our heading was 250 degrees. A short glimpse of the traffic was seen at our 4 O'clock position coming straight at us at our altitude, and the decision was made to descend after hearing the captain of the other airplane tell ATC his TCASII was giving him a climb resolution to avoid us. By descending to avoid his flight path we entered the class B airspace at tampa through the top by about 500 ft. After clearing the traffic we climbed back up out of class B airspace and continued the flight.

Original NASA ASRS Text

Title: SMA DSNDS THROUGH CEILING OF CLASS B ON EVASIVE ACTION WITH SECOND ACFT.

Narrative: WHILE FLYING VFR AT 10600 FT IN THE CLB, ATC MADE A TFC CALL TO US. OUR HDG WAS 250 DEGS. A SHORT GLIMPSE OF THE TFC WAS SEEN AT OUR 4 O'CLOCK POS COMING STRAIGHT AT US AT OUR ALT, AND THE DECISION WAS MADE TO DSND AFTER HEARING THE CAPT OF THE OTHER AIRPLANE TELL ATC HIS TCASII WAS GIVING HIM A CLB RESOLUTION TO AVOID US. BY DSNDING TO AVOID HIS FLT PATH WE ENTERED THE CLASS B AIRSPACE AT TAMPA THROUGH THE TOP BY ABOUT 500 FT. AFTER CLRING THE TFC WE CLBED BACK UP OUT OF CLASS B AIRSPACE AND CONTINUED THE FLT.

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.