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BE35 pilot has vors indicating on course but ATC says off course and vectors back onto airway. Pilot believes there is airway scalloping as others report similar experiences on this airway.
| Attributes | |
| ACN | 353731 |
| Time | |
| Date | 199611 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : vny |
| State Reference | CA |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bur |
| Operator | general aviation : personal |
| Make Model Name | Bonanza 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : v186 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 25 flight time total : 3480 flight time type : 1630 |
| ASRS Report | 353731 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance non adherence : far other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
Narrative:
ATC advised that I was south of course and was directed to turn to 080 degree heading to reintercept V186. Both navigation receivers on board were properly tuned to vny 095 degree radial and both indicators were centered, indicating that we were tracking the airway. Subsequent operation and vot check showed intolerance operation of both receivers. Subsequent discussion of this event with other pilots revealed that they had similar experiences on same airway in same location.
Original NASA ASRS Text
Title: BE35 PLT HAS VORS INDICATING ON COURSE BUT ATC SAYS OFF COURSE AND VECTORS BACK ONTO AIRWAY. PLT BELIEVES THERE IS AIRWAY SCALLOPING AS OTHERS RPT SIMILAR EXPERIENCES ON THIS AIRWAY.
Narrative: ATC ADVISED THAT I WAS S OF COURSE AND WAS DIRECTED TO TURN TO 080 DEG HDG TO REINTERCEPT V186. BOTH NAV RECEIVERS ON BOARD WERE PROPERLY TUNED TO VNY 095 DEG RADIAL AND BOTH INDICATORS WERE CTRED, INDICATING THAT WE WERE TRACKING THE AIRWAY. SUBSEQUENT OP AND VOT CHK SHOWED INTOLERANCE OP OF BOTH RECEIVERS. SUBSEQUENT DISCUSSION OF THIS EVENT WITH OTHER PLTS REVEALED THAT THEY HAD SIMILAR EXPERIENCES ON SAME AIRWAY IN SAME LOCATION.
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.