TUNTUTULIAK, AK, USA
N710WS
CESSNA 402B
THE RUNWAY SURFACE HAD BEEN GRADED, AND SOFT GRADED MATERIAL HAD BEEN PUSHED INTO A SMALL DEPRESSION ADJACENT TO THE RUNWAY. THE AIRPLANE WAS TAXIING BACK TO THE RAMP, WHEN THE NOSE WHEEL ROLLED INTO THE DEPRESSION AND THE NOSE GEAR COLLAPSED. THE SOFT AREA/DEPRESSION HAD BEEN PREVIOUSLY MARKED WITH YELLOW CONES. THE CONES HAD BEEN REMOVED WHILE THE RUNWAY WAS BEING GRADED AND HAD NOT BEEN REPLACED. NO NOTAMS HAD BEEN ISSUED. THE ALASKA SUPPLEMENT STATED THAT THE RUNWAY WAS SOFT AND RUNWAY CONDITIONS WERE NOT MONITORED.
On June 12, 1995, at 1530 Alaska daylight time, a wheel equipped Cessna 402B airplane, N710WS, registered to and operated by the Watchtower Bible Organization and Tract Society, collapsed its nose gear while taxiing back after landing. The business flight, operating under 14 CFR Part 91, departed Good News, Alaska, and the destination was Tuntutuliak, Alaska. No flight plan was filed and visual meteorological conditions prevailed. The airline transport certificated pilot and the three passengers were not injured and the airplane was substantially damaged. According to the Director of the Watchtower Bible Organization, who was also a passenger on the airplane, they were taxiing back to the ramp after landing. The runway had just been graded and a small depression in the runway's surface was filled with soft material. The airplane's nose gear rolled into the depression and the nose gear collapsed. The Director of the Watchtower Bible Organization stated that the soft area on the runway had been marked with yellow cones. He stated that the runway maintenance person told them the cones were removed so the runway surface could be graded. The cones had not been replaced. There were no NOTAMS (Notice to Airmen) issued. The Alaska Supplement, however, states that runway conditions are not monitored and that a visual inspection is recommended. The supplement states that there are dips and ruts to 4 inches deep.
THE AIRPORT MAINTENANCE PERSONNEL'S INADEQUATE MAINTENANCE OF THE RUNWAY BY NOT REPLACING THE YELLOW CONES THAT MARKED THE SOFT AREA. THE SOFT AREA ON THE RUNWAY WAS A RELATED FACTOR.
Source: NTSB Aviation Accident Database
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