ASN Wikibase Occurrence # 39204
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| Date: | Saturday 17 September 1988 |
| Time: | 11:27 |
| Type: |  Stolp SA-300 Starduster Too |
| Owner/operator: | private |
| Registration: | N57DH |
| MSN: | 826 |
| Engine model: | LYCOMING O-360 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Oklahoma City, OK -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | (HSD5) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WITNESSES RPRTD THE PLT WAS DOING AEROBATICS NEAR THE ARPT. THEY OBSERVED TWO SNAP ROLLS, THEN SAW THE ACFT ENTER A SPIN TO THE RIGHT. THE WITNESSES SAID THE ACFT WAS MANEUVERING AT AN ESTIMATED 1,500 TO 1,900 FEET AGL, THEN IT SPUN, UNCORRECTED TO GROUND IMPACT. AN INVESTIGATION REVEALED THAT IN THE REAR COCKPIT, THE RUDDER CABLE ATTACHMENT ON THE LEFT RUDDER PEDAL HAD FAILED. A METALLURGICAL EXAMINATION REVEALED THE FRACTURE WAS TYPICAL OF OVERSTRESS, BUT THE WELDED AREA HAD VOIDS & THERE WAS A LACK OF FUSION & PENETRATION IN THE WELDED AREA. CAUSE: TOTAL FAILURE OF THE RUDDER CONTROL DUE TO FAILURE OF THE METAL WELDS ON THE CABLE ATTACHMENT TO THE RUDDER PEDAL, DUE TO IMPROPER WELDING BY THE MANUFACTURER.
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X26824
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 05-Sep-2009 05:48 | harro | Updated |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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