ANC08TA099

NTSB accident investigation · Piper PA-18 · Nome, AK · August 6, 2008

Accident · No injuriesFinal report
Date
August 5, 2008, 16:00 local (Aug 6, 2008, 00:00 UTC)
Place
Nome, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7055Piper PA-18
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report April 15, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-FAI FSDO 01
FAA report
20080805844059A
Case key
68630

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

On this page

Probable cause

The pilot's failure to maintain directional control of the airplane during the takeoff roll.

Findings · 2

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18: 12 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18: 21 casesAll aircraft: 9,295 casesProbable cause

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

While performing wildlife enforcement duties, the private pilot was departing in a tundra-tire-equipped airplane from a remote gravel surface roadway. Ditches were located along each side of the road. The pilot indicated that during the takeoff roll, he glanced down to locate the flap handle, during which time the airplane drifted off the left side of the road. The left main landing gear tire encountered soft terrain in the ditch and the airplane nosed over.

Factual narrative

On August 5, 2008, about 1600 Alaska daylight time, a tundra tire-equipped Piper PA-18 airplane, N7055, sustained substantial damage when it collided with a ditch during the takeoff roll from a road, about 38 miles north of Nome, Alaska. The airplane was being operated as a visual flight rules (VFR) local area public use flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the State of Alaska, Department of Public Safety, Anchorage, Alaska. The private certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed, and no flight plan was filed.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on August 6, the pilot reported that he landed on the Kougarok Road to perform wildlife enforcement duties, and was departing for a return flight to Nome. The road has a gravel/dirt surface, with ditches along each edge. The pilot indicated that during the takeoff roll, he glanced down to locate the flap handle, during which the airplane drifted off the left side of the road. The left main landing gear tire encountered soft terrain in the ditch, and the airplane nosed over.

Aircraft

Registration
N7055
Reported as
Piper PA-18
Category
Airplane
Serial number
18-8916
Airframe hours
8,237
Engine
Lycoming O-320-B2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Public aircraft · Part 91
Operator
State of Alaska
Registered owner
State of Alaska
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 18, 2008 · 16 hours before
Departed
PAOM · Nome, 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
40
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 5, 2007
Seat
Front
Flight hours
523 total · 153 in this make and model · 481 as pilot in command · 29 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
20 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.