ANC98LA050

NTSB accident investigation · Cessna 170B · Russian Mission, AK · June 4, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 4, 1998, 13:00 local (21:00 UTC)
Place
Russian Mission, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2235DCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report November 17, 1999
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980604012469A
Case key
3139

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 inadequate compensation for wind conditions while landing. A factor associated with the accident was the presence of a tailwind condition.

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.

Loss of control - on ground/waterLanding
Weather condition - tailwindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Nose downLanding

Analysis

The solo pilot was landing at a remote gravel airstrip. The pilot stated that prior to landing he had received a pilot report indicating that there was a slight breeze, favoring a landing to the east. He looked at the airstrip windsock, noted that it was hanging limp, and prepared to land to the west. He said that while landing to the west, and just after touchdown, a gust of wind from behind pushed the tail of the airplane to the left. The airplane veered to the right, and went off the right side of the runway and came to rest in a ditch that borders the runway. He said that his decision to land to the west was based on a more favorable approach, and it would eliminate the need to back taxi.

Factual narrative

On June 4, 1998, about 1300 Alaska daylight time, a wheel equipped Cessna 170B airplane, N2235D, sustained substantial damage while landing at a remote airstrip at Kako, Alaska, located about 5 miles north of Russian Mission, Alaska. The solo private pilot/owner was not injured. The airplane was being operated as a visual flight rules (VFR) personal flight under Title 14 CFR Part 91, when the accident occurred. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at the accident airstrip about 1030, and was returning from Holly Cross, Alaska.

The pilot reported in his written statement to the NTSB that prior to landing he received a pilot report indicating that there was a slight breeze, favoring a landing to the east. The pilot looked at the airstrip windsock, noted that it was hanging limp, and prepared to land to the west. He stated that while landing to the west, and just after touchdown, a gust of wind from behind pushed the tail of the airplane to the left. The airplane veered to the right, and the pilot said he applied left rudder and left brake in an attempt to keep the airplane aligned with the runway. He said he was unable to maintain directional control, and the airplane went off the right side of the runway. The airplane came to rest in a ditch that borders the runway. The airplane sustained substantial damage to the wings, and fuselage.

The pilot noted in his written statement that his decision to land to the west was based on a more favorable approach, and it would eliminate the need to back taxi.

Aircraft

Registration
N2235D
Reported as
Cessna 170B
Category
Airplane
Serial number
20387
Airframe hours
4,163
Engine
Continental O-300-B, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William J. Wilson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 27, 1997 · 37 hours before
Departed
4Z4 · Holy Cross, AK
Airport
Kako, runway 27, 2,500 × 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
27
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1 total · 35 in this make and model · 99 as pilot in command · 18 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None
Temperature
68 °F

FAA reports on this event · 1

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