ANC22LA029

NTSB accident investigation · Piper PA-18-150 · Beluga, AK · April 12, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
April 11, 2022, 18:45 local (Apr 12, 2022, 02:45 UTC)
Place
Beluga, AK · Mount Torbert
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N135ESPiper PA-18-150
Defining event
Landing: Landing area overshoot
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
20220411005309A
Case key
104947

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 touchdown speed, which resulted in a long landing and impact with terrain.

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: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 24 casesAll aircraft: 1,681 casesProbable cause
Terrain: mountainous/hilly terrainEnvironmental issues › Physical environment · Response/compensationPiper 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 reported that while landing off-airport on snow-covered mountainous terrain, the ski-equipped airplane touched down fast, and he was unable to make a left turn prior to the airplane impacting a “gully”. Subsequently, the airplane impacted the opposite side of the gully, both landing gear collapsed, and the left wing impacted the terrain and sustained substantial damage. The pilot reported no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N135ES
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8109074
Built
1981
Airframe hours
1,812.3
Engine
Lycoming O-360-C4P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · September 10, 2021
Departed
BCV · Birchwood, 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
28
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
November 8, 2020
Seat
Front
Restraint
3-point
Flight hours
202 total · 40 in this make and model · 150 as pilot in command · 6 in the last 90 days · 6 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 4 knots
Visibility
10 statute miles
Temperature
43 °F, dew point 23 °F
Altimeter
30.43 inHg
Observed at
PANC, 58 nm away
METAR
PANC 120253Z 29004KT 10SM FEW250 06/M05 A3043 RMK AO2 SLP307 T00561050 58013

Docket · 2

The files NTSB released with the investigation on August 22, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 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.