ASN Wikibase Occurrence # 240483
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| Date: | Monday 20 July 2020 |
| Time: | 15:00 LT |
| Type: |  Ayres S-2R-T Turbo Thrush |
| Owner/operator: | Slater's Spray Service |
| Registration: | N1662S |
| MSN: | 1835R |
| Year of manufacture: | 1973 |
| Total airframe hrs: | 11955 hours |
| Engine model: | Honeywell TPE331-10 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Harlan, IA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Harland, IA (HNR) |
| Harland, IA (HNR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the aerial application flight was spraying a field when the top portion of the rudder partially separated from the airplane. The airplane yawed abruptly left and remained in an uncontrollable left yaw for about 10 to 15 minutes, at times pitching uncontrollably downward until the broken portion of the rudder separated. The airplane landed without further incident. Postaccident metallurgical examination of the upper rudder hinge revealed a fatigue fracture.
Probable Cause: The fatigue fracture of the upper rudder hinge that resulted in a partial separation of the rudder from the airplane during a spray pass.
Accident investigation:
 |
|
Sources:
NTSB CEN20LA294
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Aug-2020 08:40 | ASN Update Bot | Added |
| 26-Aug-2020 09:35 | harro | Updated [Aircraft type, Phase, Departure airport, Destination airport] |
| 26-Aug-2020 11:07 | harro | Updated [Narrative] |
| 03-Mar-2021 21:07 | rudy | Updated [[Narrative]] |
| 07-May-2021 19:35 | harro | Updated [[[Narrative]]] |
| 27-Jun-2022 12:16 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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