ANC95LA077

NTSB accident investigation · Cessna 402B · Tuntutuliak, AK · June 12, 1995

Accident · No injuriesLimited investigationFinal report
Date
June 12, 1995, 15:30 local (23:30 UTC)
Place
Tuntutuliak, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N710WSCessna 402B
Weather
Visual (VMC) · Day
Status
Completed · report January 29, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950612017319A
Case key
2666

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Nose gear collapsedTaxi - from landing
Terrain condition - softFactor
Runway maintenance - inadequateAirport personnelCause
Landing gear,nose gear - overload

Analysis

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.

Factual narrative

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.

Aircraft

Registration
N710WS
Reported as
Cessna 402B
Category
Airplane
Serial number
402B0558
Airframe hours
2,043
Engine
Continental TSIO-520, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Watchtower Bible And Tract Soc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 4, 1995 · 100 hours before
Departed
BET · Bethel, AK
Destination
AK61 · AK
Airport
AK61 · Tuntutuliak, runway 2, 1,800 × 75 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
60
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
14,500 total · 1,200 in this make and model · 9,900 as pilot in command · 127 in the last 90 days · 49 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 10 knots
Visibility
39 statute miles
Lowest ceiling
None
Temperature
55 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N710WS · 1

Matched to the same aircraft by N-number and date.