N4238M

Substantial
None

Piper PA 12S/N: 12-3134

Accident Details

Date
Sunday, June 30, 2019
NTSB Number
GAA19CA376
Location
Yakima, WA
Event ID
20190630X91504
Coordinates
46.566944, -120.537223
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

The separation of the left steering spring from the tailwheel assembly during landing for reasons that could not be determined, which resulted in a ground loop.

Aircraft Information

Registration
Make
PIPER
Serial Number
12-3134
Engine Type
Reciprocating
Year Built
1947
Model / ICAO
PA 12M600
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
3
FAA Model
PA-12

Registered Owner (Current)

Name
ROBINSON ERIC C
Address
PO BOX 1705
City
PALMER
State / Zip Code
AK 99645-1705
Country
United States

Analysis

The pilot of the tailwheel-equipped airplane reported that, during the landing roll, he felt a "tailwheel shimmy." He attempted to correct with elevator to no avail. The airplane veered to the right, he attempted to add left brake, but the airplane quickly ground looped to the right. The left wing struck the runway. He then taxied the airplane to the ramp with difficulty.

Postaccident examination revealed that the left tailwheel steering spring was missing. He added that the spring was present and operating normally during preflight and taxi before takeoff. Crash fire rescue personnel found the left steering spring on the runway while conducting an examination for runaway damage. In pictures provided by the pilot, the spring appeared undamaged.

The airplane sustained substantial damage to the left wing.

The airport's automated weather observation station reported that, about 47 minutes before the accident, the wind was from 160° at 7 knots. The same automated station reported that, about 13 minutes after the accident, the wind was from 140° at 6 knots. The pilot landed the airplane on runway 27.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# GAA19CA376