ANC98LA166

NTSB accident investigation · Piper PA-12 · Tyonek, AK · September 29, 1998

Accident · No injuriesLimited investigationFinal report
Date
September 29, 1998, 13:30 local (21:30 UTC)
Place
Tyonek, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N2796MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report February 16, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980929039179A
Case key
45143

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 aircraft's left wheel encountering a hole as the pilot taxied from landing and his inadequate compensation for wind conditions. Contributing factors were the rough terrain and gusty wind condition.

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 terrain/waterTaxi - from landing
Terrain condition - rough/unevenFactor
Unsuitable terrain or takeoff/landing/taxi area - encounteredPilot in commandCause
Nose overTaxi - from landing
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause

Analysis

The private pilot had landed with a left crosswind on a 900 feet long, off airport landing site. As he was taxiing to the end, the left wheel dipped into a hole, and the tail came up in with a wind gust. The pilot added power to try to keep the tail down, but the propeller struck the ground, and the airplane nosed over.

Factual narrative

On September 29, 1998, about 1330 Alaska daylight time, a tundra tire equipped PA-12 airplane, N2796M, sustained substantial damage when it nosed over at an off airport landing site. The private pilot was not injured. The airplane was owned and operated by the pilot, and the flight was conducted under 14 CFR Part 91 as a personal flight. The flight originated from Anchorage, Alaska, for the accident site. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed.

The pilot told the NTSB investigator-in-charge during an interview on October 19, and wrote in his NTSB Pilot / Operator report, that he was returning to the site to pick up meat from a hunting trip. He stated that he had flown into the site several times already, and had orange flags in the trees for wind indicators. The pilot indicated that he landed uphill on the 900 feet long grass field, with a left crosswind. As he was taxiing to the end, the left wheel dipped into a hole, and the tail came up with a wind gust. He added power to attempt to keep the tail down, but the propeller struck the ground and the plane nosed over.

Aircraft

Registration
N2796M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-1195
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard A. Millar
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 1998
Departed
LHD · Anchorage, 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
47
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
330 total · 268 in this make and model · 315 as pilot in command · 53 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 8 knots, gusting 10
Visibility
25 statute miles
Lowest ceiling
None
Temperature
45 °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 N2796M · 1

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