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A B757 crew misreads their flight plan waypoint and enters the incorrect RNAV intersection into the database. ATC corrects their error in the resulting heading change.
| Attributes | |
| ACN | 402250 |
| Time | |
| Date | 199805 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : drk |
| State Reference | AZ |
| Altitude | msl bound lower : 37000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab tower : sfb |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 60 flight time total : 6700 flight time type : 1200 |
| ASRS Report | 402250 |
| 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:
Flight plan entered in computer using place, bearing, and distance. Not able to confirm with latitude/longitude on B757. After drk 350 degree radial, 100 DME, next fix was zun 014 degree radial 180 DME then gld 192 degree radial 060 DME. We entered by mistake the zun 141 degree radial 80 DME, misreading the flight plan. Our route looked strange, but it was confirmed as zun 141 degree radial 80 DME by our dispatch. As part of test route, we bought off on something being goofy, since it was confirmed. Back side of clock flying contributed to misreading flight plan, also not being able (not specified in procedural bulletin) to verify waypoint accuracy against latitude/longitude. After we made the big turn to our errant waypoint, ZAB turned us back to avoid conflict. We then discovered our mistake and re-entered proper fix.
Original NASA ASRS Text
Title: A B757 CREW MISREADS THEIR FLT PLAN WAYPOINT AND ENTERS THE INCORRECT RNAV INTXN INTO THE DATABASE. ATC CORRECTS THEIR ERROR IN THE RESULTING HDG CHANGE.
Narrative: FLT PLAN ENTERED IN COMPUTER USING PLACE, BEARING, AND DISTANCE. NOT ABLE TO CONFIRM WITH LATITUDE/LONGITUDE ON B757. AFTER DRK 350 DEG RADIAL, 100 DME, NEXT FIX WAS ZUN 014 DEG RADIAL 180 DME THEN GLD 192 DEG RADIAL 060 DME. WE ENTERED BY MISTAKE THE ZUN 141 DEG RADIAL 80 DME, MISREADING THE FLT PLAN. OUR RTE LOOKED STRANGE, BUT IT WAS CONFIRMED AS ZUN 141 DEG RADIAL 80 DME BY OUR DISPATCH. AS PART OF TEST RTE, WE BOUGHT OFF ON SOMETHING BEING GOOFY, SINCE IT WAS CONFIRMED. BACK SIDE OF CLOCK FLYING CONTRIBUTED TO MISREADING FLT PLAN, ALSO NOT BEING ABLE (NOT SPECIFIED IN PROCEDURAL BULLETIN) TO VERIFY WAYPOINT ACCURACY AGAINST LATITUDE/LONGITUDE. AFTER WE MADE THE BIG TURN TO OUR ERRANT WAYPOINT, ZAB TURNED US BACK TO AVOID CONFLICT. WE THEN DISCOVERED OUR MISTAKE AND RE-ENTERED PROPER FIX.
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.