NTSB Identification: ANC84FA026.
The docket is stored on NTSB microfiche number 23783.
Scheduled 14 CFR operation of JAPAN AIRLINES
Accident occurred Monday, December 19, 1983 in ANCHORAGE, AK
Aircraft: BOEING 747-200F, registration: J8151
Injuries: 1 Serious,3 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

AT 2359 THE LOCAL CONTROLLER CLEARED THE FLT TO LAND ON RWY 6R. AT 0001 THE GROUND CONTROLLER CLEARED A STATE-OPERATED PICK-UP TRUCK ONTO RWY 6R FOR A TAPLEY RUN. THE GROUND CONTROLLER STATED THAT HE REQUESTED CLEARANCE FROM THE LOCAL CONTROLLER TO ALLOW THE TRUCK ON THE RWY. HE WAS NOT AWARE THAT THE B-747 HAD BEEN CLEARED TO LAND. THE LOCAL CONTROLLERWAS BUSY WITH OTHER COMMUNICATIONS & WAS NOT SURE IF HE ACKNOWLEDGED THE REQUEST FROM GROUND CONTROL; HOWEVER, THE GROUND CONTROLLER BELIEVED THE LOCAL CONTROLLER SAID 'OKAY.' THE ACFT STRUCK THE TRUCK ABOUT 2,000 FT BEYOND THE APPROACH END OF THE RWY WHILE THE ACFT'S MAIN LANDING GEAR WAS ON THE GROUND BUT THE NOSE HAD NOT YET BEEN LOWERED FROM THE LANDING ATTITUDE. THE FLT CREW STATED THAT THEY DID NOT SEE THE TRUCK PRIOR TO THE COLLISION. AT 0013 THE RWY VISUALRANGE(RVR) WAS 600 FT VARIABLE 800 FT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

CONTROL TOWER SERVICE..INADEQUATE..ATC PERSONNEL(LCL/GND/CLNC)


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..OBSCURATION


Contributing Factors

OBJECT..VEHICLE

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