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Flight crew of 2 engine widebody transport aircraft descending on autoplt. FMC did not follow dog leg in the airway. Center controller gave a vector.
| Attributes | |
| ACN | 128009 |
| Time | |
| Date | 198911 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : vwv |
| State Reference | NY |
| Altitude | msl bound lower : 17000 msl bound upper : 17000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | enroute airway : v526 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 17000 flight time type : 2700 |
| ASRS Report | 128009 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 4900 flight time type : 180 |
| ASRS Report | 127685 |
| Events | |
| Anomaly | 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:
Our clearance dictated that we fly V526 to wakem intersection. V526 has a dog leg turn at plaer intersection before going to wakem. An error in the on board computer navigation data base shows V526 to be a straight line between vwv VOR and wakem. ATC noticed we were off course after vwv and gave us a heading to reintercept arwy. We had a chance to catch error in route during preflight while stepping through the route, but missed it.
Original NASA ASRS Text
Title: FLT CREW OF 2 ENGINE WDB ACFT DESCENDING ON AUTOPLT. FMC DID NOT FOLLOW DOG LEG IN THE AIRWAY. CENTER CTLR GAVE A VECTOR.
Narrative: OUR CLRNC DICTATED THAT WE FLY V526 TO WAKEM INTXN. V526 HAS A DOG LEG TURN AT PLAER INTXN BEFORE GOING TO WAKEM. AN ERROR IN THE ON BOARD COMPUTER NAV DATA BASE SHOWS V526 TO BE A STRAIGHT LINE BTWN VWV VOR AND WAKEM. ATC NOTICED WE WERE OFF COURSE AFTER VWV AND GAVE US A HDG TO REINTERCEPT ARWY. WE HAD A CHANCE TO CATCH ERROR IN ROUTE DURING PREFLT WHILE STEPPING THROUGH THE ROUTE, BUT MISSED IT.
Data retrieved from NASA's ASRS site as of August 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.