ANC06CA132

NTSB accident investigation · Piper PA-12 · Noatak, AK · September 11, 2006

Accident · No injuriesData collectionFinal report
Date
September 11, 2006, 13:00 local (21:00 UTC)
Place
Noatak, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N105JHPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20060911019189A
Case key
64627

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 an unsuitable landing site, which resulted in a loss of control during the landing roll and a nose over. Factors associated with the accident were soft terrain and the pilot's failure to maintain directional control.

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.

On ground/water encounter with terrain/waterLanding - roll
Terrain condition - softFactor
Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Nose overLanding - roll
Terrain condition - water

Analysis

The private pilot related he was landing a tailwheel-equipped airplane on a gravel bar adjacent to a river during a Title 14, CFR Part 91 personal flight. During the landing roll, the right main landing gear wheel encountered soft sand, the airplane veered to the right, entered the river, and nosed over. The pilot related there were no preaccident mechanical problems with the airplane, and that the airplane sustained substantial damage to the lift struts and left wing.

Factual narrative

The private pilot related he was landing a tailwheel-equipped airplane on a gravel bar adjacent to a river during a Title 14, CFR Part 91 personal flight. During the landing roll, the right main landing gear wheel encountered soft sand, the airplane veered to the right, entered the river, and nosed over. The pilot related there were no preaccident mechanical problems with the airplane, and that the airplane sustained substantial damage to the lift struts and left wing.

Aircraft

Registration
N105JH
Reported as
Piper PA-12
Category
Airplane
Serial number
12-3240
Engine
Lycoming O-320-B2B, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Kenneth D. Ubben
Registered owner
Tony Richardson
Airworthiness certificate
Standard, Normal
Departed
Noatak, 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
52
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Flight hours
2,500 total · 1,300 in this make and model · 25 in the last 90 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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