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A commercial rated atx pilot flying a C340 near bfi inadvertently enters sea class B airspace without proper clearance.
| Attributes | |
| ACN | 445210 |
| Time | |
| Date | 199907 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sea.airport |
| State Reference | WA |
| Altitude | msl bound lower : 1800 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tracon : s46.tracon |
| Operator | common carrier : charter |
| Make Model Name | Cessna 340/340A |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : vfr |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : charter |
| Function | flight crew : single pilot oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 250 flight time total : 1350 flight time type : 75 |
| ASRS Report | 445210 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | airspace violation : entry non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : exited penetrated airspace flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I have flown into and out of bfi at least 20 times in the past 1 1/2 yrs, and am not totally unfamiliar with the departure procedures from there, but on jul/xa/99, while departing runway 31L to the northwest en route to friday harbor, I climbed to an altitude of 1700 ft to stay under the floor of class B airspace at 1800 ft for the first 5-6 mi after departing. While climbing, I was attempting to obtain VFR advisories from sea departure but was having difficulty obtaining the frequencys and receiving the handoff from the tower. I noticed my altitude had climbed to 2000 ft, but was unsure of my distance from boeing and thus, unsure if I was clear of class B airspace. I descended back below 1800 ft to correct any potential violation of class B airspace and eventually obtained VFR advisories and clearance to operate in class B airspace, and proceeded on my way without incident.
Original NASA ASRS Text
Title: A COMMERCIAL RATED ATX PLT FLYING A C340 NEAR BFI INADVERTENTLY ENTERS SEA CLASS B AIRSPACE WITHOUT PROPER CLRNC.
Narrative: I HAVE FLOWN INTO AND OUT OF BFI AT LEAST 20 TIMES IN THE PAST 1 1/2 YRS, AND AM NOT TOTALLY UNFAMILIAR WITH THE DEP PROCS FROM THERE, BUT ON JUL/XA/99, WHILE DEPARTING RWY 31L TO THE NW ENRTE TO FRIDAY HARBOR, I CLBED TO AN ALT OF 1700 FT TO STAY UNDER THE FLOOR OF CLASS B AIRSPACE AT 1800 FT FOR THE FIRST 5-6 MI AFTER DEPARTING. WHILE CLBING, I WAS ATTEMPTING TO OBTAIN VFR ADVISORIES FROM SEA DEP BUT WAS HAVING DIFFICULTY OBTAINING THE FREQS AND RECEIVING THE HDOF FROM THE TWR. I NOTICED MY ALT HAD CLBED TO 2000 FT, BUT WAS UNSURE OF MY DISTANCE FROM BOEING AND THUS, UNSURE IF I WAS CLR OF CLASS B AIRSPACE. I DSNDED BACK BELOW 1800 FT TO CORRECT ANY POTENTIAL VIOLATION OF CLASS B AIRSPACE AND EVENTUALLY OBTAINED VFR ADVISORIES AND CLRNC TO OPERATE IN CLASS B AIRSPACE, AND PROCEEDED ON MY WAY WITHOUT INCIDENT.
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.