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Flight crew of a B737-300 programmed their FMC with the wrong originating airport resulting in ATC intervention to alert them to their error of being 20 mi off course.
| Attributes | |
| ACN | 339601 |
| Time | |
| Date | 199606 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ecg |
| State Reference | NC |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc artcc : zsu |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 200 |
| ASRS Report | 339601 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were 20 mi west of bacus, navigating on AR8. The controller advised us we were 20 mi south of course. We crosschecked our FMC with the vors and we were off course, we quickly corrected our heading and got back on course. The controller advised us there was no problem with traffic conflict or airspace restr. We found our problem to be, I had put the wrong originating airport in the FMC (stt instead of stx). All of our gross error checks showed us to be on course. We did have to go off course several times for WX and we were also cleared direct bacus 400 mi south.
Original NASA ASRS Text
Title: FLC OF A B737-300 PROGRAMMED THEIR FMC WITH THE WRONG ORIGINATING ARPT RESULTING IN ATC INTERVENTION TO ALERT THEM TO THEIR ERROR OF BEING 20 MI OFF COURSE.
Narrative: WE WERE 20 MI W OF BACUS, NAVING ON AR8. THE CTLR ADVISED US WE WERE 20 MI S OF COURSE. WE XCHKED OUR FMC WITH THE VORS AND WE WERE OFF COURSE, WE QUICKLY CORRECTED OUR HDG AND GOT BACK ON COURSE. THE CTLR ADVISED US THERE WAS NO PROB WITH TFC CONFLICT OR AIRSPACE RESTR. WE FOUND OUR PROB TO BE, I HAD PUT THE WRONG ORIGINATING ARPT IN THE FMC (STT INSTEAD OF STX). ALL OF OUR GROSS ERROR CHKS SHOWED US TO BE ON COURSE. WE DID HAVE TO GO OFF COURSE SEVERAL TIMES FOR WX AND WE WERE ALSO CLRED DIRECT BACUS 400 MI S.
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.