ANC05LA136

NTSB accident investigation · Cessna 207 · Kotzebue, AK · September 2, 2005

Accident · No injuriesLimited investigationFinal report
Date
September 2, 2005, 12:24 local (20:24 UTC)
Place
Kotzebue, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9964MCessna 207
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-FAI FSDO 01
FAA report
20050902022969A
Case key
62409

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 failure of the nose gear steering mechanism during the landing roll, which resulted in a loss of control and subsequent encounter with the runway.

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.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,nose gear assembly - fracturedCause
Loss of control - on ground/waterLanding - roll
Landing gear,steering system - inoperativeCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - runway

Analysis

The airline transport certificated pilot was landing a wheel-equipped airplane on a hard surface runway at the conclusion of a commuter air taxi flight. As the pilot lowered the nose wheel to the runway surface, the airplane veered to the left, and the right wingtip and propeller contacted the runway. The operator's director of maintenance reported that the airplane's right wing received structural damage to wing ribs and leading edge. He also indicated that the nose gear steering link, located between the nose gear steering shaft and the nose gear steering collar, was fractured, and the attaching tab on the steering collar was also broken. He said that the mechanism for the fracture of the steering collar tab and the steering link was not determined. The steering link was not found.

Factual narrative

On September 2, 2005, about 1224 Alaska daylight time, a wheel-equipped Cessna 207 airplane, N9964M, sustained substantial damage when it collided with terrain during the landing touchdown at the Ralph Wien Memorial Airport, Kotzebue, Alaska. The airplane was being operated as a visual flight rules (VFR) scheduled domestic passenger flight under Title 14, CFR Part 135, when the accident occurred. The airplane was operated as Flight 2641, by Bering Air Inc., Nome, Alaska. The airline transport certificated pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed, and a VFR flight plan was filed. The flight originated at the Robert Curtis Memorial Airport, Noorvik, Alaska, at 1210.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on September 2, the director of operations for the operator reported that the pilot was landing on runway 26. He said the pilot reported that when the nose wheel was lowered to the runway surface, the airplane veered to the left, and the right wingtip and propeller contacted the runway.

At 1228, an aviation special weather observation at Kotzebue was reporting in part: Wind, 210 degrees (true) at 18 knots; visibility, 2 statute miles in light rain and mist; clouds and sky condition, few at 300 feet, 700 feet broken, 1,700 feet overcast; temperature, 46 degrees F; dew point, 46 degrees F; altimeter, 29.66 inHg.

On September 7, in a telephone conversation with the operator's director of maintenance, he reported that the airplane's right wing received structural damage to wing ribs and leading edge. He also indicated that the nose gear steering link, located between the nose gear steering shaft and the nose gear steering collar, was fractured, and the attaching tab on the steering collar was also broken. He said that the mechanism for the fracture of the steering collar tab, and the steering link, was not determined.

In the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, the pilot indicated there was a mechanical malfunction/failure of the nose wheel assembly and checked "yes" in that portion of the report listing a mechanical malfunction/failure.

The pilot reported that he and airport personnel walked the runway after the accident and recovered several pieces of the right wing navigation light assembly. The broken steering link was not recovered.

Aircraft

Registration
N9964M
Reported as
Cessna 207
Category
Airplane
Serial number
20700766
Airframe hours
15,239
Engine
Continental IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Bering Air Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · August 1, 2005
Departed
D76 · Noorvik, AK
Destination
PAOT · Kotzebue, AK
Flight plan
VFR
Airport
PAOT · Kotzebue, runway 26, 5,900 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Injuries
None
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
April 1, 2005
Seat
Left
Flight hours
7,000 total · 2,000 in this make and model · 250 in the last 90 days · 90 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 18 knots
Visibility
2 statute miles
Lowest ceiling
1,700 ft overcast
Temperature
46 °F, dew point 46 °F
Altimeter
29.65 inHg
Observed at
PAOT

FAA reports on this event · 1

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