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A PA23-250 was told by ATC that he entered class B at det. The reporter was distraction by a sick passenger as they were flying in bad turbulence. He stated that his transponder 'bounces 400 ft in turbulence WX' and that he was not actually in class B airspace.
| Attributes | |
| ACN | 509980 |
| Time | |
| Date | 200104 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | PA-23-250 Aztec |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 80 flight time total : 12000 flight time type : 2500 |
| ASRS Report | 509980 |
| Events | |
| Anomaly | aircraft equipment problem : critical airspace violation : entry altitude deviation : overshoot inflight encounter : turbulence non adherence : far |
| Resolutory Action | controller : issued advisory |
| Supplementary | |
| Problem Areas | Passenger Human Performance Weather Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Moderate turbulence at time of flight from utica, ny, to ann arbor, mi, on VFR flight plan. Plan was to fly north of detroit city airport to the sym VOR and then to ann arbor. Flight was conducted at 1500 ft, due to high winds aloft. No turbulence conditions en route, allowed the low altitude. Flight approaching det, the turbulence level increased. I contacted approach. Advised I was climbing to 2000 ft. Passenger was getting violently ill. Requested 2500 ft, then 3000 ft. When past det, communication was lost with det approach. I came up with another frequency and called it. This controller said I was in class B, based on my encoder indication. Encoder is blind type and bounces 400 ft in turbulence. A B747 passed over top of me at that time. No TCASII alert from this aircraft. I was not in class B. Encoder error in turbulence indicated to ATC that I was.
Original NASA ASRS Text
Title: A PA23-250 WAS TOLD BY ATC THAT HE ENTERED CLASS B AT DET. THE RPTR WAS DISTR BY A SICK PAX AS THEY WERE FLYING IN BAD TURB. HE STATED THAT HIS XPONDER 'BOUNCES 400 FT IN TURB WX' AND THAT HE WAS NOT ACTUALLY IN CLASS B AIRSPACE.
Narrative: MODERATE TURB AT TIME OF FLT FROM UTICA, NY, TO ANN ARBOR, MI, ON VFR FLT PLAN. PLAN WAS TO FLY N OF DETROIT CITY ARPT TO THE SYM VOR AND THEN TO ANN ARBOR. FLT WAS CONDUCTED AT 1500 FT, DUE TO HIGH WINDS ALOFT. NO TURB CONDITIONS ENRTE, ALLOWED THE LOW ALT. FLT APCHING DET, THE TURB LEVEL INCREASED. I CONTACTED APCH. ADVISED I WAS CLBING TO 2000 FT. PAX WAS GETTING VIOLENTLY ILL. REQUESTED 2500 FT, THEN 3000 FT. WHEN PAST DET, COM WAS LOST WITH DET APCH. I CAME UP WITH ANOTHER FREQ AND CALLED IT. THIS CTLR SAID I WAS IN CLASS B, BASED ON MY ENCODER INDICATION. ENCODER IS BLIND TYPE AND BOUNCES 400 FT IN TURB. A B747 PASSED OVER TOP OF ME AT THAT TIME. NO TCASII ALERT FROM THIS ACFT. I WAS NOT IN CLASS B. ENCODER ERROR IN TURB INDICATED TO ATC THAT I WAS.
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.