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A B757-200 on the seavu 1 approach to lax deviated from charted track when the FMC went into standby mode.
| Attributes | |
| ACN | 711317 |
| Time | |
| Date | 200609 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : konzl |
| State Reference | CA |
| Altitude | msl single value : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : seavu |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 711317 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Descent into lax. Prior to konzl we were given the seavu 1 for runway 24R. When we put that into our FMS; it intermittently went into a standby mode. I continued to make the descent restrs but I believe we were getting off course. I advised socal approach and they gave us an amended clearance to dixxn. Our FMS was slow but it took the new arrival. No traffic conflicts were reported or observed.
Original NASA ASRS Text
Title: A B757-200 ON THE SEAVU 1 APCH TO LAX DEVIATED FROM CHARTED TRACK WHEN THE FMC WENT INTO STANDBY MODE.
Narrative: DSCNT INTO LAX. PRIOR TO KONZL WE WERE GIVEN THE SEAVU 1 FOR RWY 24R. WHEN WE PUT THAT INTO OUR FMS; IT INTERMITTENTLY WENT INTO A STANDBY MODE. I CONTINUED TO MAKE THE DSCNT RESTRS BUT I BELIEVE WE WERE GETTING OFF COURSE. I ADVISED SOCAL APCH AND THEY GAVE US AN AMENDED CLRNC TO DIXXN. OUR FMS WAS SLOW BUT IT TOOK THE NEW ARR. NO TFC CONFLICTS WERE RPTED OR OBSERVED.
Data retrieved from NASA's ASRS site as of January 2009 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.