ASN Wikibase Occurrence # 39137
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| Date: | Thursday 21 March 1996 |
| Time: | 18:41 LT |
| Type: |  Sukhoi Su-29 |
| Owner/operator: | Carlos A. Deabate |
| Registration: | N729SU |
| MSN: | 78-04 |
| Total airframe hrs: | 20 hours |
| Engine model: | Vendeneyev M-14P |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | New Orleans, LA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | (KNEW) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Radar data indicated the airplane was maneuvering in a manner consistent with the performance of aerobatics prior to entering an uncontrolled descent during which it reached a speed of over 220 knots. Evidence indicated that, prior to impact, the pilot jettisoned the canopy, released his restraining harness, and deployed his emergency parachute. All of the suspension lines attaching the parachute canopy to the harness separated. The manufacturer recommended that the parachute not be deployed at speeds greater than 140 knots; however, this limit was not marked, nor was it required to be marked, on the parachute. Examination of the airplane's elevator control system revealed evidence that a bolt attaching a control tube to a bellcrank migrated out during the flight. The bolt should have been secured with a castellated nut and a cotter pin. The control tube end, bolt, castellated nut, and cotter pin were not recovered from the accident site. It could not be determined whether the bolt was improperly installed when the airplane was manufactured or had subsequently been removed and reinstalled incorrectly.
Probable Cause: The in-flight loss of a bolt in the elevator control system due to improper installation by unknown person(s), which resulted in a disconnection of the elevator control system that rendered the airplane uncontrollable.
Accident investigation:
 |
|
Sources:
NTSB FTW96FA151
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 07:50 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Source, Narrative, Accident report] |
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