ANC20CA080

NTSB accident investigation · Piper PA 18 · Fairbanks, AK · July 27, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
July 26, 2020, 19:00 local (Jul 27, 2020, 03:00 UTC)
Place
Fairbanks, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1277APiper PA 18
Defining event
Takeoff: Loss of control on ground
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 Adminstration
FAA report
20200726009779A
Case key
101784

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 improper decision to depart from an off-airport surface that had standing water, which resulted in a loss of control 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.

Action: lack of actionPersonnel issues › Action/decision · PilotPiper PA-18: 3 casesAll aircraft: 792 casesProbable cause
Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Ability to respond/compensatePiper PA-18: 1 caseAll aircraft: 141 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, during the takeoff roll on an off-airport grass strip, as the airplane reached flying speed, it encountered a puddle of water which was hidden in grass and the pilot lost control of the airplane, which resulted in an impact with tundra tussocks and a main landing gear collapse. The fuselage and left lift strut sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. He also reported that the accident could have been prevented had he performed a better walk down of the grass strip.

Aircraft

Registration
N1277A
Reported as
Piper PA 18 (125)
Category
Airplane
Serial number
18-1072
Built
1951
Engine
Lycoming O-320, 150 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 27, 2019
Departed
PAFA · 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
32
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Front
Restraint
3-point
Flight hours
262 total · 120 in this make and model · 262 as pilot in command · 28 in the last 90 days · 22 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 9 knots
Visibility
10 statute miles
Lowest ceiling
8,500 ft broken
Temperature
67 °F, dew point 48 °F
Altimeter
2965.00 inHg
Observed at
PAFA

Docket · 2

The files NTSB released with the investigation on September 8, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.7 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 N1277A · 2

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