ANC98LA076

NTSB accident investigation · Piper PA-18 · Talkeetna, AK · June 16, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 16, 1998, 09:00 local (17:00 UTC)
Place
Talkeetna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4320ZPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report May 19, 1999
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980616020799A
Case key
3161

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilots misjudgement of the tailwind, and excessive application of brakes during the off airport landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

On ground/water encounter with weatherLanding - roll
Weather condition - tailwind
Wind information - misjudgedPilot in commandCause
Abrupt maneuverLanding - roll
Brakes(normal) - excessivePilot in commandCause
Nose overLanding - roll

Analysis

The pilot was practicing tundra landings with newly installed tundra tires. While landing on an unimproved off airport site, the airplane encountered a slight tailwind gust. The pilot applied brakes, and the airplane nosed over onto its back. The pilot stated that he made an error in determining wind direction and speed.

Factual narrative

On June 16, 1998, at 0900 Alaska daylight time, a tundra tire equipped Piper PA-18 airplane, N4320Z, sustained substantial damage when it nosed over during landing on tundra, about 17 miles north of Talkeetna, Alaska. The solo commercial pilot was not injured. The flight was conducted under 14 CFR Part 91, as a local flight from Talkeetna to practice landings with the newly installed tires. The flight departed at 0730. Visual meteorological conditions prevailed at the time of the accident, and a VFR flight plan was filed.

The pilot told the NTSB Investigator-In-Charge during a telephone interview on June 16, that he was practicing landings on tundra, and the winds were generally calm. He stated that during a landing to the south, he encountered a slight tailwind gust. The pilot hit the brakes, and the airplane nosed over onto its back. He wrote in his Pilot/Operator Report that he made an error in determining wind direction and speed.

Aircraft

Registration
N4320Z
Reported as
Piper PA-18
Category
Airplane
Serial number
18-8633
Airframe hours
3,000
Engine
Lycoming O-360, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Max C. Schwab
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 1, 1998
Departed
TKA · AK
Flight plan
VFR

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
55
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
4,500 total · 4,500 as pilot in command · 100 in the last 90 days · 50 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None
Temperature
50 °F

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 N4320Z · 3

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