Hard landing Accident Rockwell S-2R Thrush Commander N8499V, 05 Jul 2008
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ASN Wikibase Occurrence # 21747
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Type:Silhouette image of generic SS2P model; specific model in this crash may look slightly different    
Rockwell S-2R Thrush Commander
Owner/operator:Aerial Application
Registration: N8499V
MSN: 2372R
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:near Colquitt, GA -   United States of America
Phase: Initial climb
Departure airport:Colquitt, GA
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Shortly after takeoff during an agricultural application flight, approximately 834 hours since the turbine blades were installed, the engine experienced a loss of power resulting in a forced landing. Unable to dump his chemical load due to cars on a highway, the pilot executed a forced landing in a field resulting in substantial damage to both wings. Examination of the engine revealed that during repair of the compressor turbine disk in 2005, incorrect part number Federal Aviation Administration (FAA) Parts Manufacturer Approval (PMA) turbine blades were installed in all positions of the compressor turbine disk of the accident engine. The engine was approved for return to service. One of the turbine blades failed due to fatigue causing the remaining blades to fracture due to overstress.
Probable Cause: Loss of engine power due to the installation of incorrect turbine blades on the compressor turbine disk during repair of the disk assembly.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 8 months
Download report: Final report

Revision history:

16-Jul-2008 01:26 Fusko Added
21-Dec-2016 19:14 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:16 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:20 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
03-Dec-2017 11:26 ASN Update Bot Updated [Operator, Total fatalities, Total occupants, Departure airport, Source, Narrative]

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