<< >> NASA ASRS Report 327130, January 1996

A pilot flying a twin freight aircraft inadvertently penetrated class B airspace while flying a downwind departure from a nearby airport. Departure controller noticed the airspace penetration and advised pilot to be more careful.

Attributes
ACN	327130
Time
Date	199601
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sea airport : bfi
State Reference	WA
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sea tower : bfi
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	climbout : initial climbout : intermediate altitude
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 25 flight time total : 7000 flight time type : 14
ASRS Report	327130
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : far 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:

During a right downwind departure from runway 31R at boeing field I inadvertently penetrated the edge of class B airspace of seatac airport. Upon contacting departure control for flight following to pdx, and permission to climb through the class B airspace, I was advised that I had clipped the edge of class B, and that I should watch it more carefully in the future. Upon reviewing the VFR terminal chart more closely, I see that I did in fact climb to 1500 ft too soon. I have reviewed all airspace requirements around boeing and seatac, and in the future will double check VFR terminal charts immediately before attempting VFR flight in the affected areas.

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Original NASA ASRS Text

Title: A PLT FLYING A TWIN FREIGHT ACFT INADVERTENTLY PENETRATED CLASS B AIRSPACE WHILE FLYING A DOWNWIND DEP FROM A NEARBY ARPT. DEP CTLR NOTICED THE AIRSPACE PENETRATION AND ADVISED PLT TO BE MORE CAREFUL.

Narrative: DURING A R DOWNWIND DEP FROM RWY 31R AT BOEING FIELD I INADVERTENTLY PENETRATED THE EDGE OF CLASS B AIRSPACE OF SEATAC ARPT. UPON CONTACTING DEP CTL FOR FLT FOLLOWING TO PDX, AND PERMISSION TO CLB THROUGH THE CLASS B AIRSPACE, I WAS ADVISED THAT I HAD CLIPPED THE EDGE OF CLASS B, AND THAT I SHOULD WATCH IT MORE CAREFULLY IN THE FUTURE. UPON REVIEWING THE VFR TERMINAL CHART MORE CLOSELY, I SEE THAT I DID IN FACT CLB TO 1500 FT TOO SOON. I HAVE REVIEWED ALL AIRSPACE REQUIREMENTS AROUND BOEING AND SEATAC, AND IN THE FUTURE WILL DOUBLE CHK VFR TERMINAL CHARTS IMMEDIATELY BEFORE ATTEMPTING VFR FLT IN THE AFFECTED AREAS.

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.