ANC23LA040

NTSB accident investigation · Piper PA-18-150 · Anchorage, AK · June 4, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
June 4, 2023, 10:30 local (18:30 UTC)
Place
Anchorage, AK · Off airport, near the Susitna river (Big Sue)
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N83330Piper 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
Federal Aviation Administration
FAA report
20230604007839A
Case key
192329

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 excessive braking during landing on a sand bar, which resulted in a nose over.

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.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotPiper PA-18-150: 20 casesAll aircraft: 1,391 casesProbable cause
Landing gear system: brakeAircraft › Aircraft systems · Incorrect use/operationPiper PA-18-150: 10 casesAll aircraft: 297 casesProbable cause
Runway/land/takeoff/taxi surface: soft surfaceEnvironmental issues › Physical environment · Effect on operationPiper PA-18-150: 10 casesAll aircraft: 264 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, while conducting an off airport landing to a sand bar, the airplane landed beyond the intended landing point. During the landing roll on soft terrain, the pilot applied heavy braking and the airplane nosed over. The airplane sustained substantial damage to the right wing, right-wing lift strut and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N83330
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7609080
Built
1976
Airframe hours
435
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 12, 2022
Departed
AK89 · Wasilla, AK
Destination
Same as departure

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
79
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
BasicMed, Without waivers/limitations
Last flight review
June 22, 2021
Seat
Left
Restraint
4-point
Flight hours
883.1 total · 883.1 as pilot in command · 8.6 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 6 knots
Visibility
10 statute miles
Lowest ceiling
7,000 ft broken
Temperature
54 °F, dew point 43 °F
Altimeter
30.22 inHg
Observed at
PANC, 20 nm away
METAR
PANC 041853Z 33006KT 10SM FEW040 BKN070 BKN110 12/06 A3022 RMK AO2 SLP234 T01170061

FAA reports on this event · 1

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

Other investigations on N83330 · 2

Matched to the same aircraft by N-number and date.