Narrative:

On dec/xa/98 at XA43, air carrier xyz takeoff from osaka kansai (kix) en route to anchorage (anc). Upon raising landing gear handle, the left main unsafe up red annunciator light illuminated on the pilot's forward instrument panel and the so's panel. Speed was maintained at approximately 230-240 KIAS while the appropriate checklist was reviewed. Departure, and subsequently center, company informed of the difficulty. The checklist was initiated with speed at 230 KIAS without success -- both red warning lights remained illuminated with gear handle cycled up. Company operations was informed and fuel computations were requested based on possible gear down or gear door opened, speed less than 260 KTS and altitude (cruise) of FL240. Company's computer 'model' indicated insufficient fuel to make original destination, and goc initiated coordination to have flight divert and land at narita (jaa). Center was advised, and they also initiated coordination with narita since the field was closed at this time due to repair of some txwys. We entered holding as indicated by center and informed them of our time in fuel and an ability to hold until scheduled open time (approximately 2 hours). Narita nevertheless expedited clearing the runway and, after dumping approximately 27000 pounds of fuel, we declared an emergency, requested crash fire rescue equipment truck support and executed an uneventful approach and landing. The maintenance action and corrective action did find some problems in the left main area with regard to latch tolerance of doors and gear assembly. Problems were repaired, and we departed the next day for anc without further incident.

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Original NASA ASRS Text

Title: UNSAFE GEAR INDICATIONS AFTER TKOF KIX. WDB FLC DIVERTED TO JAA DECLARED AN EMER AND MADE A SAFE LNDG.

Narrative: ON DEC/XA/98 AT XA43, ACR XYZ TKOF FROM OSAKA KANSAI (KIX) ENRTE TO ANCHORAGE (ANC). UPON RAISING LNDG GEAR HANDLE, THE L MAIN UNSAFE UP RED ANNUNCIATOR LIGHT ILLUMINATED ON THE PLT'S FORWARD INST PANEL AND THE SO'S PANEL. SPD WAS MAINTAINED AT APPROX 230-240 KIAS WHILE THE APPROPRIATE CHKLIST WAS REVIEWED. DEP, AND SUBSEQUENTLY CTR, COMPANY INFORMED OF THE DIFFICULTY. THE CHKLIST WAS INITIATED WITH SPD AT 230 KIAS WITHOUT SUCCESS -- BOTH RED WARNING LIGHTS REMAINED ILLUMINATED WITH GEAR HANDLE CYCLED UP. COMPANY OPS WAS INFORMED AND FUEL COMPUTATIONS WERE REQUESTED BASED ON POSSIBLE GEAR DOWN OR GEAR DOOR OPENED, SPD LESS THAN 260 KTS AND ALT (CRUISE) OF FL240. COMPANY'S COMPUTER 'MODEL' INDICATED INSUFFICIENT FUEL TO MAKE ORIGINAL DEST, AND GOC INITIATED COORD TO HAVE FLT DIVERT AND LAND AT NARITA (JAA). CTR WAS ADVISED, AND THEY ALSO INITIATED COORD WITH NARITA SINCE THE FIELD WAS CLOSED AT THIS TIME DUE TO REPAIR OF SOME TXWYS. WE ENTERED HOLDING AS INDICATED BY CTR AND INFORMED THEM OF OUR TIME IN FUEL AND AN ABILITY TO HOLD UNTIL SCHEDULED OPEN TIME (APPROX 2 HRS). NARITA NEVERTHELESS EXPEDITED CLRING THE RWY AND, AFTER DUMPING APPROX 27000 LBS OF FUEL, WE DECLARED AN EMER, REQUESTED CFR TRUCK SUPPORT AND EXECUTED AN UNEVENTFUL APCH AND LNDG. THE MAINT ACTION AND CORRECTIVE ACTION DID FIND SOME PROBS IN THE L MAIN AREA WITH REGARD TO LATCH TOLERANCE OF DOORS AND GEAR ASSEMBLY. PROBS WERE REPAIRED, AND WE DEPARTED THE NEXT DAY FOR ANC WITHOUT FURTHER INCIDENT.

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.