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Private pilot of an sel small aircraft drifted off track during an IFR IMC flight due to changeable wind conditions in WX, resulting in approach controller intervention to not only bring reporter back to course, but provide vectors to stay outside of class B airspace.
| Attributes | |
| ACN | 403990 |
| Time | |
| Date | 199805 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ftz |
| State Reference | MO |
| Altitude | msl bound lower : 6000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 77 flight time total : 433 flight time type : 21 |
| ASRS Report | 403990 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cruising in IMC on heading to ftz. Went through abrupt wind direction change from 160 degrees at 6 KTS to 250 degrees at 20 KTS. Wind correction for initial wind caused plane to go off course to east side of course. As counter adjustment was being put in to ease plane back on course, ATC inquired about heading and then issued vectors to the west of ftz and around st louis class B airspace. Plane was off course 2 dots on VOR set on ftz. Pilot was on 2ND leg of 1ST IMC IFR flight and was flying plane without autoplt, and he had only flown twice before this trip. Additional experience under actual IFR conditions and in aircraft that pilot has greater experience with should prevent a recurrence of this situation. IMC conditions were too taxiing for limited experience IFR pilot. Greater experience will be attained before attempting flight into such severe WX as was encountered on this trip.
Original NASA ASRS Text
Title: PVT PLT OF AN SEL SMA DRIFTED OFF TRACK DURING AN IFR IMC FLT DUE TO CHANGEABLE WIND CONDITIONS IN WX, RESULTING IN APCH CTLR INTERVENTION TO NOT ONLY BRING RPTR BACK TO COURSE, BUT PROVIDE VECTORS TO STAY OUTSIDE OF CLASS B AIRSPACE.
Narrative: CRUISING IN IMC ON HEADING TO FTZ. WENT THROUGH ABRUPT WIND DIRECTION CHANGE FROM 160 DEGS AT 6 KTS TO 250 DEGS AT 20 KTS. WIND CORRECTION FOR INITIAL WIND CAUSED PLANE TO GO OFF COURSE TO E SIDE OF COURSE. AS COUNTER ADJUSTMENT WAS BEING PUT IN TO EASE PLANE BACK ON COURSE, ATC INQUIRED ABOUT HEADING AND THEN ISSUED VECTORS TO THE W OF FTZ AND AROUND ST LOUIS CLASS B AIRSPACE. PLANE WAS OFF COURSE 2 DOTS ON VOR SET ON FTZ. PLT WAS ON 2ND LEG OF 1ST IMC IFR FLT AND WAS FLYING PLANE WITHOUT AUTOPLT, AND HE HAD ONLY FLOWN TWICE BEFORE THIS TRIP. ADDITIONAL EXPERIENCE UNDER ACTUAL IFR CONDITIONS AND IN ACFT THAT PLT HAS GREATER EXPERIENCE WITH SHOULD PREVENT A RECURRENCE OF THIS SIT. IMC CONDITIONS WERE TOO TAXIING FOR LIMITED EXPERIENCE IFR PLT. GREATER EXPERIENCE WILL BE ATTAINED BEFORE ATTEMPTING FLT INTO SUCH SEVERE WX AS WAS ENCOUNTERED ON THIS TRIP.
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.