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Pilot of a cessna T210 penetrated class B airspace when he climbed too early when departing underneath the airspace due to navigating with an automatically sequenced map display GPS unit on a high mileage scale which compressed the actual location of his aircraft. Since he was using flight following, ATC advised him that he was in class B airspace and to depart.
| Attributes | |
| ACN | 391710 |
| Time | |
| Date | 199801 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : teb |
| State Reference | NJ |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : myf |
| Operator | general aviation : personal |
| Make Model Name | Cessna 210 Centurion / Turbo Centurion 210C, 210D |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : instrument pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 40 flight time total : 2400 flight time type : 1000 |
| ASRS Report | 391710 |
| 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 | flight crew : exited penetrated airspace other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was maintaining 2500 ft MSL navigating with an IFR approved KLN89B GPS while receiving ATC flight following radar advisories. I intended to fly direct to the fallz intersection keeping below 3000 ft MSL to avoid the new york class B airspace. While watching my progress on the GPS moving map, at approximately 1 mi from the fallz intersection, it appeared I would be clear of the class B airspace by the time I reached 3000 ft MSL if I began to climb at that time. I reached 3000 ft MSL prior to clearing the class B airspace and was subsequently informed to remain clear of the class B airspace by ATC. There is no excuse for this however I believe the automatically sequenced map scale was a contributing factor as it was set on a high mileage scale which compressed the locations of fallz intersection, the class B airspace, and my position. Had I not been using the map I would have waited to cross fallz intersection prior to beginning my climb from 2500 ft MSL.
Original NASA ASRS Text
Title: PLT OF A CESSNA T210 PENETRATED CLASS B AIRSPACE WHEN HE CLBED TOO EARLY WHEN DEPARTING UNDERNEATH THE AIRSPACE DUE TO NAVING WITH AN AUTOMATICALLY SEQUENCED MAP DISPLAY GPS UNIT ON A HIGH MILEAGE SCALE WHICH COMPRESSED THE ACTUAL LOCATION OF HIS ACFT. SINCE HE WAS USING FLT FOLLOWING, ATC ADVISED HIM THAT HE WAS IN CLASS B AIRSPACE AND TO DEPART.
Narrative: I WAS MAINTAINING 2500 FT MSL NAVING WITH AN IFR APPROVED KLN89B GPS WHILE RECEIVING ATC FLT FOLLOWING RADAR ADVISORIES. I INTENDED TO FLY DIRECT TO THE FALLZ INTXN KEEPING BELOW 3000 FT MSL TO AVOID THE NEW YORK CLASS B AIRSPACE. WHILE WATCHING MY PROGRESS ON THE GPS MOVING MAP, AT APPROX 1 MI FROM THE FALLZ INTXN, IT APPEARED I WOULD BE CLR OF THE CLASS B AIRSPACE BY THE TIME I REACHED 3000 FT MSL IF I BEGAN TO CLB AT THAT TIME. I REACHED 3000 FT MSL PRIOR TO CLRING THE CLASS B AIRSPACE AND WAS SUBSEQUENTLY INFORMED TO REMAIN CLR OF THE CLASS B AIRSPACE BY ATC. THERE IS NO EXCUSE FOR THIS HOWEVER I BELIEVE THE AUTOMATICALLY SEQUENCED MAP SCALE WAS A CONTRIBUTING FACTOR AS IT WAS SET ON A HIGH MILEAGE SCALE WHICH COMPRESSED THE LOCATIONS OF FALLZ INTXN, THE CLASS B AIRSPACE, AND MY POS. HAD I NOT BEEN USING THE MAP I WOULD HAVE WAITED TO CROSS FALLZ INTXN PRIOR TO BEGINNING MY CLB FROM 2500 FT MSL.
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.