ASN Wikibase Occurrence # 298169
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| Date: | Saturday 17 June 2017 |
| Time: | 13:34 LT |
| Type: |  Piper PA-12 |
| Owner/operator: | |
| Registration: | N4018H |
| MSN: | 12-3446 |
| Year of manufacture: | 1947 |
| Engine model: | Lycoming O-320 Series |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Skwentna, Alaska -
 United States of America
|
| Phase: | Standing |
| Nature: | Private |
| Departure airport: | Houston, AK (80AK) |
| Skwentna, AK (None) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was transporting about 120 lbs of plywood, secured to the airplane's float struts via cargo straps, to his remote cabin. The pilot reported that, about 200 ft above the ground during the landing approach, the airplane experienced an uncommanded left turn, then the pilot realized that he had no rudder control and that the rudder was "locked to the left." The airplane subsequently impacted trees and terrain. The pilot reported no mechanical anomalies with the engine and no anomalies with the airplane before the loss of control.
The airplane's water rudder cables descend from the fuselage along the support struts to which the plywood was secured. The water rudders were directly linked to the rudder. It is likely that, during the flight, the plywood shifted and interfered with the water rudder cable, which resulted in the pilot's loss of rudder control during the landing approach.
Probable Cause: The pilot's failure to properly secure the external load, which resulted in the load shifting during flight, interference with the water rudder cable, and a subsequent loss of control
Accident investigation:
 |
|
Sources:
NTSB ANC17LA033
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Oct-2022 14:02 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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