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A PA23 private pilot misreads aeronautical chart and sets the wrong radial in obs, flies off in the wrong direction. Xchking with LORAN-GPS makes the error obvious. Sbv, va.
| Attributes | |
| ACN | 469600 |
| Time | |
| Date | 200004 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | MO |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | general aviation : personal |
| Make Model Name | PA-23-250 Aztec |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other other vortac |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : ns.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : private pilot : instrument |
| Experience | flight time last 90 days : 16 flight time total : 1105 flight time type : 256 |
| ASRS Report | 469600 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : loran / gps other flight crewa |
| Resolutory Action | flight crew : returned to intended or assigned course flight crew : became reoriented flight crew : returned to original clearance |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Environmental Factor Chart Or Publication Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Misread radial off of low en route chart. Set obs to 63 degrees (route to ric) instead of correct route of 032 degrees. Also set the M1 LORAN to direct gordonsville. It said route should have been approximately 34 degrees, xchk with handheld GPS. The garmin 195 degree radial showed we were tracking east of course. At that point I realized I had misread and misset the heading into the obs. We may have been as far as 10 mi past sbv when I started correction to correct heading. ATC made no comment. There was a southwest wind that made the aircraft travel faster along the incorrect route. It is good to have more than one type of NAVAID on board -- 2 out of 3 flagged me that I was heading in the wrong direction.
Original NASA ASRS Text
Title: A PA23 PVT PLT MISREADS AERO CHART AND SETS THE WRONG RADIAL IN OBS, FLIES OFF IN THE WRONG DIRECTION. XCHKING WITH LORAN-GPS MAKES THE ERROR OBVIOUS. SBV, VA.
Narrative: MISREAD RADIAL OFF OF LOW ENRTE CHART. SET OBS TO 63 DEGS (RTE TO RIC) INSTEAD OF CORRECT RTE OF 032 DEGS. ALSO SET THE M1 LORAN TO DIRECT GORDONSVILLE. IT SAID RTE SHOULD HAVE BEEN APPROX 34 DEGS, XCHK WITH HANDHELD GPS. THE GARMIN 195 DEG RADIAL SHOWED WE WERE TRACKING E OF COURSE. AT THAT POINT I REALIZED I HAD MISREAD AND MISSET THE HDG INTO THE OBS. WE MAY HAVE BEEN AS FAR AS 10 MI PAST SBV WHEN I STARTED CORRECTION TO CORRECT HDG. ATC MADE NO COMMENT. THERE WAS A SW WIND THAT MADE THE ACFT TRAVEL FASTER ALONG THE INCORRECT RTE. IT IS GOOD TO HAVE MORE THAN ONE TYPE OF NAVAID ON BOARD -- 2 OUT OF 3 FLAGGED ME THAT I WAS HDG IN THE WRONG DIRECTION.
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.