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A320 flight crew failed to maintain flight plan routing due to the FMC dropping a major fix out of the computer program.
| Attributes | |
| ACN | 531057 |
| Time | |
| Date | 200112 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : drk.vortac |
| State Reference | AZ |
| Altitude | msl single value : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc tower : yip.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 16000 flight time type : 6000 |
| ASRS Report | 531057 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | other spatial deviation |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After changing to ZLA, he asked our route. The FMC had drk-linsley 1 arrival las. ZLA said ok and gave us a short-cut to larre intersection. Later he said call ZAB on the ground. ZAB said we were supposed to go drk-pgs-LINSEY1-las. It was filed and on our flight plan that way. We had early check route on ground and pgs was in there. ZAB cleared us direct drk. We did not notice pgs had dropped out. ZAB said they had a lot of airbus aircraft do the same thing.
Original NASA ASRS Text
Title: A320 FLC FAILED TO MAINTAIN FLT PLAN ROUTING DUE TO THE FMC DROPPING A MAJOR FIX OUT OF THE COMPUTER PROGRAM.
Narrative: AFTER CHANGING TO ZLA, HE ASKED OUR RTE. THE FMC HAD DRK-LINSLEY 1 ARR LAS. ZLA SAID OK AND GAVE US A SHORT-CUT TO LARRE INTXN. LATER HE SAID CALL ZAB ON THE GND. ZAB SAID WE WERE SUPPOSED TO GO DRK-PGS-LINSEY1-LAS. IT WAS FILED AND ON OUR FLT PLAN THAT WAY. WE HAD EARLY CHK RTE ON GND AND PGS WAS IN THERE. ZAB CLRED US DIRECT DRK. WE DID NOT NOTICE PGS HAD DROPPED OUT. ZAB SAID THEY HAD A LOT OF AIRBUS ACFT DO THE SAME THING.
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.