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Pilot of a piper seneca PA34 turned off course due to turbulence during an IFR descent. Reporter informed approach controller after turning back on course.
| Attributes | |
| ACN | 435482 |
| Time | |
| Date | 199904 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bna.airport |
| State Reference | TN |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | Mixed |
| Weather Elements | Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna.tracon tower : myf.tower |
| Operator | general aviation : personal |
| Make Model Name | PA-34-200 Seneca I |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : enroute altitude change descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : instrument pilot : private pilot : multi engine |
| Experience | flight time last 90 days : 30 flight time total : 3500 flight time type : 500 |
| ASRS Report | 435482 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter : turbulence non adherence : far non adherence : clearance other anomaly other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : provided flight assist flight crew : regained aircraft control flight crew : exited adverse environment |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was on IFR flight plan from ffc to hvc, on top of most buildups at 12000 ft MSL. When I began my descent through 11000 ft, descending to hvc, I encountered severe turbulence at 11000 ft. Could not hold heading for about 2 mins and turned, inadvertently, off course till descent out of turbulence, then informed departure control I was in clear and turning back on course. Mistake I made was not informing controller until turbulence was gone. Controller was very helpful. Really had no problem after first encounter.
Original NASA ASRS Text
Title: PLT OF A PIPER SENECA PA34 TURNED OFF COURSE DUE TO TURB DURING AN IFR DSCNT. RPTR INFORMED APCH CTLR AFTER TURNING BACK ON COURSE.
Narrative: I WAS ON IFR FLT PLAN FROM FFC TO HVC, ON TOP OF MOST BUILDUPS AT 12000 FT MSL. WHEN I BEGAN MY DSCNT THROUGH 11000 FT, DSNDING TO HVC, I ENCOUNTERED SEVERE TURB AT 11000 FT. COULD NOT HOLD HDG FOR ABOUT 2 MINS AND TURNED, INADVERTENTLY, OFF COURSE TILL DSCNT OUT OF TURB, THEN INFORMED DEP CTL I WAS IN CLR AND TURNING BACK ON COURSE. MISTAKE I MADE WAS NOT INFORMING CTLR UNTIL TURB WAS GONE. CTLR WAS VERY HELPFUL. REALLY HAD NO PROB AFTER FIRST ENCOUNTER.
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.