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An air carrier widebody transport twin turbojet flight crew put the wrong VORTAC into the navigation page of the FMC and went off course.
| Attributes | |
| ACN | 433987 |
| Time | |
| Date | 199904 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : sac.vortac |
| State Reference | CA |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 433987 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 20000 flight time type : 1600 |
| ASRS Report | 433980 |
| Events | |
| Anomaly | non adherence : clearance non adherence : far non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued alert flight crew : returned to intended course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Near sac, after some normal vectors, ZOA reclred us direct lucin J94, rest of route unchanged. I selected and activated llc J94 in the FMC. ATC queried our clearance. After some discussion with ATC, the controller caught our mistake. He then told us llc was lovelock and we were cleared to lcu. The rest of the flight was uneventful. Supplemental information from acn 433980: the contributing factors were similar idents (llc and lcu) and proximity, ie, the map looked ok because the course was very close.
Original NASA ASRS Text
Title: AN ACR WDB TWIN TURBOJET FLC PUT THE WRONG VORTAC INTO THE NAV PAGE OF THE FMC AND WENT OFF COURSE.
Narrative: NEAR SAC, AFTER SOME NORMAL VECTORS, ZOA RECLRED US DIRECT LUCIN J94, REST OF RTE UNCHANGED. I SELECTED AND ACTIVATED LLC J94 IN THE FMC. ATC QUERIED OUR CLRNC. AFTER SOME DISCUSSION WITH ATC, THE CTLR CAUGHT OUR MISTAKE. HE THEN TOLD US LLC WAS LOVELOCK AND WE WERE CLRED TO LCU. THE REST OF THE FLT WAS UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 433980: THE CONTRIBUTING FACTORS WERE SIMILAR IDENTS (LLC AND LCU) AND PROX, IE, THE MAP LOOKED OK BECAUSE THE COURSE WAS VERY CLOSE.
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.