ANC06LA007

NTSB accident investigation · Cessna 208B · Unalakleet, AK · October 24, 2005

Accident · Minor injuriesLimited investigationFinal report
Date
October 24, 2005, 14:00 local (22:00 UTC)
Place
Unalakleet, AK
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1263YCessna 208B
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Fairbanks FSDO-01
FAA report
20051024029809A
Case key
62739

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 pilot's failure to maintain altitude/clearance from terrain while performing a low altitude maneuver.

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.

In flight collision with terrain/waterManeuvering
Terrain condition - ground
Low altitude flight/maneuver - performedPilot in commandCause
Altitude/clearance - not maintainedPilot in commandCause

Analysis

After completing a multiple leg-cargo flight, the commercial pilot was conducting a 14 CFR Part 91, positioning flight. During the flight the pilot was flying at low-level looking for animals. According to the sole passenger, while approaching a ridgeline, the pilot climbed steeply from 150 feet above ground level (agl) to 400-500 feet agl, banked to the left at 75-80 degrees, and started a descent to about 200 feet agl. The passenger said during the descent he saw the pilot look in the back of the airplane because of noise made by the seats under a cargo net. The passenger said he saw the ground coming up fast, and yelled "whoa, whoa, whoa." The pilot looked forward just in time to pull the yoke back prior to the impact with the terrain. The pilot told the director of operations for the operator that there were no mechanical problems with the airplane prior to the accident. The fuselage and wings received substantial damage during the accident.

Factual narrative

On October 24, 2005, about 1400 Alaska daylight time, a Cessna 208B airplane, N1263Y, sustained substantial damage when it collided with terrain during low level maneuvering flight, about 17 miles south of Unalakleet, Alaska. The airplane was being operated by Bering Air Inc., of Nome, Alaska, as a visual flight rules (VFR) positioning flight under Title 14, CFR Part 91, when the accident occurred. The commercial certificated pilot and sole passenger received minor injuries. The flight departed Stebbins Airport, Stebbins, Alaska, about 1345, en route to Unalakleet.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on October 28, the director of operations for the operator said the pilot told him he was flight-seeing on the return trip to Unalakleet, when his attention was diverted to a noise in the cabin. The pilot told him that when he redirected his attention outside, the airplane collided with the brush and tundra covered terrain. According to the director of operations, the pilot said there were no mechanical problems with the airplane. The airplane sustained structural damage to the wings and fuselage during the accident.

In a written statement to the NTSB dated November 10, the pilot wrote that he "passed over a ridgeline, and entered into a valley at low level to look for animals." He wrote that he "reduced power to slow the aircraft and nosed the aircraft forward to descend," and he "heard a noise from shifting seats in the rear of the airplane." He wrote that he "looked back to see what the noise was, and by the time I turned back to the front I only had enough time to pull back on the yoke and flare the aircraft to lessen the impact."

In a written statement to the FAA dated November 1, the passenger wrote that on the multiple leg flight, the pilot typically flew between 150 and 400 feet above ground level (agl). He wrote that during the accident flight, they had descended to 150 feet agl flying through creek ravines, banking left and right at 60-80 degrees angle of bank. He reported that just prior to the accident, they did a maneuver where the airplane climbed steeply to 400-500 feet agl, then banked left about 75-80 degrees angle of bank, while descending to about 200 feet agl. He reported that during the descent, the pilot looked in the back of the airplane because of the noise some seats under a cargo net were making. He wrote that he saw the ground coming up fast, and shouted "whoa, whoa, whoa," at which time the pilot looked forward, and pulled back on the yoke just prior to the impact with the terrain.

Aircraft

Registration
N1263Y
Reported as
Cessna 208B
Category
Airplane
Serial number
208B0731
Airframe hours
7,259
Engine
Pratt & Whitney Canada PT6-14A, 675 horsepower, turbo prop
Damage
Substantial damage
Flight
Positioning · Part 91
Registered owner
Bering Air Inc
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
AAIP · October 1, 2005 · 100 hours before
Departed
WBB · Stebbins, AK
Destination
PAUN · Unalakleet, AK
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
29
Injuries
Minor
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
April 1, 2005
Seat
Left
Flight hours
2,130 total · 740 in this make and model · 990 as pilot in command · 270 in the last 90 days · 45 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 6 knots
Visibility
10 statute miles
Lowest ceiling
5,000 ft overcast
Temperature
32 °F, dew point 25 °F
Altimeter
29.63 inHg
Observed at
UNK, 15 nm away

FAA reports on this event · 1

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