ASN Wikibase Occurrence # 200866
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| Date: | Friday 3 November 2017 |
| Time: | 09:15 LT |
| Type: |  Piper PA-18-150 Super Cub |
| Owner/operator: | Private |
| Registration: | N4393Z |
| MSN: | 18-8724 |
| Year of manufacture: | 1968 |
| Total airframe hrs: | 5411 hours |
| Engine model: | Lycoming O-320-B2B |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Murphy, ID -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
The flight of two airplanes landed at a dirt airstrip for a break after flying in the area to spot elk. The passenger recalled that during takeoff, the nose snapped to the right and pointed down. The pilot on the ground observed the airplane takeoff and climb to 150 ft above the ground before seeing the right wing drop and simultaneously heard over the radio the pilot state "whoa." The airplane nose continued to drop until the airplane impacted the ground.
Examination of the airplane revealed the left aileron control cable was separated from the eye fitting and thimble on the left aileron control cable turnbuckle. Further, the outboard left aileron control cable and the inboard right aileron control cable were improperly crimped. The improper crimping allowed the left aileron cable to pull through the staged sleeve. The resulting separation of the cable would have allowed the balance cable to become slack and the pilot would not have been able to control the roll of the airplane.
The left wing was rebuilt 20 years prior and the maintenance logs did not specifically mention replacing the control cables. 10 years prior, the aileron balance cable and rudder cable were tightened. An annual inspection was performed every year, and no discrepancies were ever noted.
Probable Cause:
Failure of the left aileron control cable that resulted in loss of control during takeoff. Contributing to the accident was inadequate maintenance inspections to the aileron cable connections.
Accident investigation:
 |
|
Sources:
https://www.ktvb.com/article/news/local/boise-man-dies-in-owyhee-county-plane-crash/488973874
http://www.idahostatesman.com/news/local/article182662081.html
______________
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=4393Z
https://www.skybrary.aero/index.php/Mountain_Waves
History of this aircraft
Other occurrences involving this aircraft
| 1 September 1996 | N4393Z | Private | 0 | Tyonek, AK | |
sub |
Location
Media:
Boise man dies in Owyhee County plane crash https://t.co/25T8dGGFcp pic.twitter.com/AuYp1k4J25
— KTVB.COM (@KTVB) 4 novembre 2017
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Nov-2017 02:01 | Geno | Added |
| 04-Nov-2017 07:08 | Iceman 29 | Updated [Time, Nature, Source, Embed code] |
| 26-Jun-2022 15:31 | Michael Pelham | Updated [Location, Embed code, Narrative] |
Corrections or additions? ... Edit this accident description
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