ASN Wikibase Occurrence # 277312
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| Date: | Monday 4 April 2022 |
| Time: | 11:45 |
| Type: |  de Havilland Canada DHC-2 Turbine Beaver |
| Owner/operator: | Skydive Oz |
| Registration: | VH-AAX |
| MSN: | 1411 |
| Year of manufacture: | 1959 |
| Engine model: | Garrett Turbineo TPE331-2-201A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Moruya Airport, (MYA/YMRY), NSW -
 Australia
|
| Phase: | Approach |
| Nature: | Parachuting |
| Departure airport: | Moruya Airport, NSW (MYA/YMRY) |
| Moruya Airport, (MYA/YMRY), NSW | |
| Investigating agency: | ATSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After completing parachute operations, the engine failed and the pilot conducted a forced landing at Moruya Airport.
The aircraft VH-AAX was modified in by Aerial Agriculture Co. Australia, and incorporates a longer fuselage, fin and rudder. All Australian mofifications.
During the lifespan it has been fitted with a radial engine, a Pratt & Whitney PT6 turboprop and also fitted with numerous Garrett TPE-331 turbine engines.
The aircraft is known correctly as the "Wallaroo 605" The '605' being the original horsepower rating of the first turbine fitted.
Contributing factors
• A low-cycle fatigue crack, which had initiated on the 3rd-stage turbine wheel, grew to a critical size liberating a fragment of turbine wheel. Following this, the engine failed, requiring the pilot to shut down the engine and conduct a forced landing.
• Errors in cycle counting made by a previous maintainer resulted in the 3rd-stage turbine wheel remaining in-service beyond the component life-limit.
Accident investigation:
 |
|
Sources:
http://www.atsb.gov.au/publications/investigation_reports/2022/aair/ao-2022-025/
https://www.dhc-2.com/id440.htm
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Apr-2022 08:51 | harro | Added |
| 11-Apr-2022 08:52 | harro | Updated [Time, Aircraft type, Source] |
| 13-Apr-2022 08:16 | Anon. | Updated [Narrative] |
| 13-Apr-2022 08:17 | harro | Updated [Narrative] |
| 13-Oct-2023 06:52 | harro | Updated [[Narrative]] |
Corrections or additions? ... Edit this accident description
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