ANC21LA088

NTSB accident investigation · Piper PA-18-150 · Talkeetna, AK · September 11, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 10, 2021, 16:15 local (Sep 11, 2021, 00:15 UTC)
Place
Talkeetna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7MYPiper PA-18-150
Defining event
Landing-landing roll: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20210910022399A
Case key
103883

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 selection of unsuitable terrain for landing, which resulted in a loss of directional control and nose over.

Findings · 6

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-18-150: 98 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-18-150: 13 casesAll aircraft: 1,008 cases
Object/animal/substance: debris/dirt/foreign objectEnvironmental issues › Physical environment · Response/compensationPiper PA-18-150: 4 casesAll aircraft: 101 cases
Terrain: mountainous/hilly terrainEnvironmental issues › Physical environment · Effect on operationPiper PA-18-150: 5 casesAll aircraft: 329 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 of the tailwheel-equipped airplane reported that prior to landing at an off-airport, rocky and tundra covered, uphill slope landing site, he made several passes over the area looking for hazards and “dragged” the wheels to test the landing surface. During the landing, the airplane touched down slightly past the “ideal spot”, he applied the brakes, but the airplane did not slow as much has he had expected. As the airplane reached the top of the knoll and started down the other side it began to weathervane to the right. He applied the brakes to avoid rocks and the airplane encountered a large hole that he had “not seen from the air.” Subsequently, the airplane nosed over and came to rest inverted sustaining substantial damage to the empennage. The pilot reported no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation and that the accident may have been avoided if he had selected a more suitable landing site.

Aircraft

Registration
N7MY
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7242
Built
1959
Airframe hours
5,779.5
Engine
Lycoming O-320A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Paris Enterprises LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 1, 2021
Departed
TKA · Talkeetna, AK
Destination
Same as departure
Equipment
None

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
31
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
June 17, 2021
Seat
Front
Flight hours
5,500 total · 330 in this make and model · 180 in the last 90 days · 40 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 3 knots
Visibility
10 statute miles
Lowest ceiling
7,000 ft overcast
Temperature
54 °F, dew point 48 °F
Altimeter
29.58 inHg
Observed at
PATK, 18 nm away
METAR
PATK 102353Z 22003KT 10SM OVC070 12/09 A2958

Docket · 2

The files NTSB released with the investigation on March 18, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 MB 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.