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MD80 first officer failed to turn on airway due to misreading the aeronautical chart DME distance to a cross change fix.
| Attributes | |
| ACN | 536377 |
| Time | |
| Date | 200201 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : yyz.vor |
| State Reference | ON |
| Altitude | msl single value : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : v265.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 200 flight time total : 18000 flight time type : 4000 |
| ASRS Report | 536377 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued alert flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Chart Or Publication Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In cruise flight on V265 south of yyz. Missed turn at thorl intersection. V265 makes a dogleg turn toward jamestown at thorl intersection. I read the chart and believed thorl was at 77 DME south of yyz VOR. There is no mileage breakdown at thorl. The fault was mine, however, I believe that intersection should be shown with its own distance due to it being used so extensively as a departure fix out of toronto.
Original NASA ASRS Text
Title: MD80 FO FAILED TO TURN ON AIRWAY DUE TO MISREADING THE AERO CHART DME DISTANCE TO A CROSS CHANGE FIX.
Narrative: IN CRUISE FLT ON V265 S OF YYZ. MISSED TURN AT THORL INTXN. V265 MAKES A DOGLEG TURN TOWARD JAMESTOWN AT THORL INTXN. I READ THE CHART AND BELIEVED THORL WAS AT 77 DME S OF YYZ VOR. THERE IS NO MILEAGE BREAKDOWN AT THORL. THE FAULT WAS MINE, HOWEVER, I BELIEVE THAT INTXN SHOULD BE SHOWN WITH ITS OWN DISTANCE DUE TO IT BEING USED SO EXTENSIVELY AS A DEP FIX OUT OF TORONTO.
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.