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B777 captain reports ILS approach to runway 16R at rjaa flown off course to the right due to malfunctioning localizer transmitter.
| Attributes | |
| ACN | 738963 |
| Time | |
| Date | 200705 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : rjaa.airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | Marginal |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 16r |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 150 flight time total : 15000 flight time type : 170 |
| ASRS Report | 738963 |
| Person 2 | |
| Affiliation | government : foreign |
| Function | controller : approach |
| Events | |
| Anomaly | other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | ATC Human Performance Navigational Facility |
| Primary Problem | Navigational Facility |
Narrative:
First two rjaa approach controllers assigned us VOR runway 16R approach and we briefed it. Next approach controller assigned us ILS runway 16R and we briefed that. Final approach controller cleared us to intercept the localizer and cleared us for ILS runway 16R approach. After I intercepted the localizer I noticed a difference between the localizer raw data and the map display on the nd. We reloaded the approach and still had the split and I continued to follow the ILS raw data. At 900 ft we were able to see the ground and discovered the raw data from the localizer was not aligned with the runway and had us about 3/4 mile right of centerline. I turned off the FD and completed a visual landing and reported the issue to rjaa ground control. On our paperwork there was a comment on the ATIS that said; 'ILS runway 16R on test do not use; false indications possible. Flight inspection inpr.'
Original NASA ASRS Text
Title: B777 CAPT RPTS ILS APCH TO RWY 16R AT RJAA FLOWN OFF COURSE TO THE RIGHT DUE TO MALFUNCTIONING LOC XMITTER.
Narrative: FIRST TWO RJAA APCH CONTROLLERS ASSIGNED US VOR RWY 16R APCH AND WE BRIEFED IT. NEXT APCH CONTROLLER ASSIGNED US ILS RWY 16R AND WE BRIEFED THAT. FINAL APCH CONTROLLER CLEARED US TO INTERCEPT THE LOC AND CLEARED US FOR ILS RWY 16R APCH. AFTER I INTERCEPTED THE LOC I NOTICED A DIFFERENCE BETWEEN THE LOC RAW DATA AND THE MAP DISPLAY ON THE ND. WE RELOADED THE APPROACH AND STILL HAD THE SPLIT AND I CONTINUED TO FOLLOW THE ILS RAW DATA. AT 900 FT WE WERE ABLE TO SEE THE GROUND AND DISCOVERED THE RAW DATA FROM THE LOC WAS NOT ALIGNED WITH THE RUNWAY AND HAD US ABOUT 3/4 MILE RIGHT OF CENTERLINE. I TURNED OFF THE FD AND COMPLETED A VISUAL LANDING AND REPORTED THE ISSUE TO RJAA GROUND CONTROL. ON OUR PAPERWORK THERE WAS A COMMENT ON THE ATIS THAT SAID; 'ILS RWY 16R ON TEST DO NOT USE; FALSE INDICATIONS POSSIBLE. FLT INSPECTION INPR.'
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.