ANC21LA054

NTSB accident investigation · Piper PA-18-150 · Talkeetna, AK · July 1, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
July 1, 2021, 14:45 local (22:45 UTC)
Place
Talkeetna, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8996YPiper 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
FAA report
20210701012149A
Case key
103462

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 use of brakes during landing, which resulted in a nose-over. Contributing to the accident was the flight instructor’s inadequate supervision and the gusty tailwind conditions.

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.

Landing gear system: brakeAircraft › Aircraft systems · Incorrect use/operationPiper PA-18-150: 10 casesAll aircraft: 297 casesProbable cause
Performance/control parameters: surface speed/brakingAircraft › Aircraft oper/perf/capability · Incorrect use/operationPiper PA-18-150: 14 casesAll aircraft: 238 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · Student/instructed pilotPiper PA-18-150: 20 casesAll aircraft: 1,391 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotPiper PA-18-150: 11 casesAll aircraft: 894 casesProbable cause
Attention/monitoring: monitoring other personPersonnel issues › Psychological · Instructor/check pilotPiper PA-18-150: 4 casesAll aircraft: 200 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-18-150: 15 casesAll aircraft: 594 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 flight instructor reported that after evaluating an uphill off-airport landing site, the pilot receiving instruction proceeded with an approach to landing. The airplane touched down long due to excessive airspeed and a gusty tailwind. During the landing rollout, and as the airplane neared the crest of the hill, excessive braking was applied and the airplane subsequently nosed-over resulting in substantial damage to the right lift strut and rudder. The pilot reported that there were no preaccident mechanical malfunctions or anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N8996Y
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7409138
Built
1974
Airframe hours
3,505.69
Engine
Lycoming 0-320 A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 17, 2021
Departed
4AK6 · Wasilla, AK
Destination
4AK6 · Wasilla, AK
Airport
PVT · Private
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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
27
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
February 22, 2021
Seat
Rear
Restraint
4-point
Flight hours
5,686 total · 743 in this make and model
Role
Pilot
Age
26
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Unknown
Seat
Front
Restraint
4-point
Flight hours
900 total · 5 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 45 °F
Altimeter
29.99 inHg
Observed at
PATK, 24 nm away
METAR
PATK 012253Z 00000KT 10SM CLR 24/07 A2999 RMK AO2 SLP157 T02390072

Docket · 2

The files NTSB released with the investigation on November 12, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.2 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 N8996Y · 3

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