ASN Wikibase Occurrence # 288901
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| Date: | Sunday 28 August 2011 |
| Time: | 12:45 LT |
| Type: |  Van's RV-6A |
| Owner/operator: | Private |
| Registration: | N642DW |
| MSN: | 22286 |
| Total airframe hrs: | 309 hours |
| Engine model: | Superior IO-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Albany, Oregon -
 United States of America
|
| Phase: | Standing |
| Nature: | Private |
| Departure airport: | Albany, OR (S12) |
| Albany, OR (S12) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that a few minutes after takeoff, he heard a loud noise and felt a vibration when an aluminum propeller blade separated from the airplane. The pilot then made a forced landing on a grass field north of the departure airport. The MT-Propeller two-bladed propeller hub, separated blade, and fracture surfaces were examined. The examination revealed finely spaced striations consistent with high-cycle fatigue. The hub wall had fatigue cracks initiating from shallow oxidized pits. Evidence of rework or repair was found on the hub blade bore. The propeller logbook reported that the hub was repaired and inspected by a repair station and reinstalled by the pilot/owner 3 days before the accident flight.
Probable Cause: The in-flight separation of a propeller blade due to fatigue.
Accident investigation:
 |
|
Sources:
NTSB WPR11LA412
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Oct-2022 07:32 | ASN Update Bot | Added |
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