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Air carrier widebody transport got 100 NM off track enroute lax/hnl. Flight crew had entered the wrong omega coords.
| Attributes | |
| ACN | 168097 |
| Time | |
| Date | 199101 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 31500 msl bound upper : 32000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : other oceanic enroute : pacific enroute airway : r577 enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 28000 flight time type : 2600 |
| ASRS Report | 168097 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 8500 flight time type : 1400 |
| ASRS Report | 168104 |
| Events | |
| Anomaly | non adherence : clearance non adherence : far non adherence : published procedure other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Wrong coordination inserted into omega. Descended 500', turned left approximately 60 degree to reintercept proper track. Reestimated time to next reporting point and requested change of altitude to FL360. Supplemental information from acn 168104. The INS did have the correct coords however the selector switch was in wind and not xtrack where it is normally carried. Additionally, monitoring outbnd heading after crossing a navigation point/fix and comparing with the flight plan would help preclude an incident of this type.
Original NASA ASRS Text
Title: ACR WDB GOT 100 NM OFF TRACK ENROUTE LAX/HNL. FLT CREW HAD ENTERED THE WRONG OMEGA COORDS.
Narrative: WRONG COORD INSERTED INTO OMEGA. DSNDED 500', TURNED L APPROX 60 DEG TO REINTERCEPT PROPER TRACK. REESTIMATED TIME TO NEXT RPTING POINT AND REQUESTED CHANGE OF ALT TO FL360. SUPPLEMENTAL INFO FROM ACN 168104. THE INS DID HAVE THE CORRECT COORDS HOWEVER THE SELECTOR SWITCH WAS IN WIND AND NOT XTRACK WHERE IT IS NORMALLY CARRIED. ADDITIONALLY, MONITORING OUTBND HDG AFTER XING A NAV POINT/FIX AND COMPARING WITH THE FLT PLAN WOULD HELP PRECLUDE AN INCIDENT OF THIS TYPE.
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.