ANC10CA063

NTSB accident investigation · Cessna 172P · New Stuyahok, AK · July 18, 2010

Accident · No injuriesData collectionFinal report
Date
July 17, 2010, 19:15 local (Jul 18, 2010, 03:15 UTC)
Place
New Stuyahok, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N63022Cessna 172P
Defining event
Initial climb: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2010
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA FSDO-03
FAA report
20100717040559A
Case key
76685

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 selection of unsuitable terrain for takeoff, resulting in a collision with trees.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Runway/land/takeoff/taxi surface: soft surfaceEnvironmental issues › Physical environment · Contributed to outcomeCessna 172P: 2 casesAll aircraft: 264 cases
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeCessna 172P: 6 casesAll aircraft: 933 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The private pilot was departing from an off-airport site on a cross-country flight. According to the pilot, during the takeoff roll the airplane encountered a soft spot, which delayed the airplane's liftoff. He said that, following the delayed liftoff, he was unable to avoid trees near the departure end of the runway and that the right wing struck a tree before the airplane spun to the ground. The pilot reported that there were no known mechanical problems with the airplane prior to the accident. The airplane sustained substantial damage to the wings and fuselage.

Factual narrative

The private pilot was departing from an off-airport site on a personal cross-country flight under Title 14, CFR Part 91. The pilot said during the takeoff roll the airplane encountered a soft spot, which delayed the airplane's liftoff. He said following the delayed liftoff, he was unable to avoid trees near the departure end of the runway. He said the right wing struck a tree, and the airplane spun to the ground. The pilot said there were no known mechanical problems with the airplane prior to the accident. The airplane sustained substantial damage to the wings and fuselage.

Aircraft

Registration
N63022
Reported as
Cessna 172P
Category
Airplane
Serial number
17275382
Airframe hours
20,967
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Brian Geerdes
Registered owner
Flight Safety Alaska Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 9, 2010
Departed
New Stuyahok, AK
Destination
Mulchatna River, AK

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
28
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
June 11, 2010
Seat
Left
Flight hours
490 total · 268 in this make and model · 397 as pilot in command · 90 in the last 90 days · 46 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
7,000 ft broken
Temperature
64 °F
Observed at
PAEN, 60 nm away

Docket · 1

The files NTSB released with the investigation on September 8, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 926 KB in all.

FAA reports on this event · 1

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