ANC12CA091

NTSB accident investigation · Piper PA-18A 150 · Talkeetna, AK · August 18, 2012

Accident · No injuriesData collectionFinal report
Date
August 17, 2012, 18:30 local (Aug 18, 2012, 02:30 UTC)
Place
Talkeetna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7863DPiper PA-18A 150
Defining event
Landing-landing roll: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report December 19, 2012
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Anchorage FSDO
FAA report
20120817018099A
Case key
84776

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 decision to land on a short, wet, off-airport landing site, which resulted in a runway excursion.

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.

Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Contributed to outcomePiper PA-18A 150: 1 caseAll aircraft: 141 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 pilot was landing a tundra-tire and tailwheel-equipped airplane on a short, wet off-airport site that was on the top of a small butte. He was unable to stop the airplane in the available landing area, and the airplane rolled over an embankment, coming to rest approximately 50 feet downhill in a shallow creek bed. The airplane sustained substantial damage to both wings. The pilot indicated there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Factual narrative

The pilot was landing a tundra-tire and tailwheel-equipped airplane on a short, wet off-airport site that is on the top of a small butte. He was unable to stop the airplane in the available landing area, and the airplane rolled over an embankment, coming to rest approximately 50 feet downhill in a shallow creek bed. The airplane sustained substantial damage to both wings. The pilot indicated there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation. A completed copy of NTSB Form 6120.1, Pilot/Operator Accident Report, was not submitted by the pilot as requested.

Aircraft

Registration
N7863D
Reported as
Piper PA-18A 150
Category
Airplane
Serial number
18-6012
Engine
Lycoming O-360 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
Talkeetna, AK
Destination
Talkeetna, 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
37
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Unknown
Seat
Front
Flight hours
1,000 total · 100 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 3 knots
Visibility
10 statute miles
Lowest ceiling
7,000 ft overcast
Temperature
61 °F, dew point 46 °F
Altimeter
29.84 inHg
Observed at
PATK, 50 nm away

Docket · 1

The files NTSB released with the investigation on October 27, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 62 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.