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) |
Destination airport: | Moruya Airport, (MYA/YMRY), NSW |
Investigating agency: | ATSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative: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:
|
| |
Investigating agency: | ATSB |
Report number: | |
Status: | Investigation completed |
Duration: | 1 year and 6 months |
Download report: | Final report |
|
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]] |
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