ANC24LA098

NTSB accident investigation · Piper PA-18-150 · Fairbanks, AK · September 15, 2024

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 15, 2024, 12:00 local (20:00 UTC)
Place
Fairbanks, AK · remote grass strip
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N4242ZPiper PA-18-150
Defining event
Takeoff: Aerodynamic stall/spin
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
20240915014709A
Case key
195179

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 failure to maintain a rate of climb sufficient to clear obstacles during takeoff, resulting in a collision with obstacles and a subsequent aerodynamic stall.

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.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 3 casesAll aircraft: 265 casesProbable cause

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, shortly after takeoff, his tailwheel-equipped airplane was not producing adequate lift to maintain a rate of climb needed to clear obstacles at the end of the airstrip. The landing gear contacted the tops of some small trees, the left wing stalled, and the airplane came to rest in a grove of small trees and brush, which resulted in substantial damage to the wings and fuselage. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N4242Z
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8597
Built
1967
Airframe hours
2,365
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 27, 2023 · 19 hours before
Departed
MTF · Fairbanks, AK
Flight plan
VFR
Equipment
Handheld GPS

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
75
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Sport pilot, Without waivers/limitations
Seat
Front
Restraint
Lap only
Flight hours
29,500 total · 146 in this make and model · 28,000 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 5 knots
Visibility
9 statute miles
Lowest ceiling
3,800 ft broken
Temperature
48 °F, dew point 46 °F
Altimeter
29.31 inHg
Observed at
PAFA, 4 nm away
METAR
PAFA 151953Z 19005KT 9SM -RA FEW027 BKN038 OVC055 09/08 A2931 RMK AO2 SLP931 P0003 T00940078 $

Docket · 2

The files NTSB released with the investigation on June 5, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.9 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.

Other investigations on N4242Z · 1

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