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ASN Wikibase Occurrence # 212859
Last updated: 3 February 2020
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Date:17-MAY-1983
Time:
Type:Silhouette image of generic UH12 model; specific model in this crash may look slightly different
Hiller UH-12E
Owner/operator:
Registration: VH-AGL
C/n / msn:
Fatalities:Fatalities: 0 / Occupants: 3
Other fatalities:0
Aircraft damage: Substantial
Location:Hacking River (?), NSW -   Australia
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Calibration/Inspection
Departure airport:YHOX
Destination airport:YHOX
Investigating agency: BASI
Narrative:
Whilst on cruise at 1000 feet above ground level, the helicopter experienced a sudden loss of power. The pilot carried out an autorotative landing on river mud flats. During the landing the tail rotor struck the water. The transmission of the helicopter failed after the disintegration of the planetary gears which was caused by fatigue cracking. Fatigue cracks were found in several sections of the remaining gear fragments and it was not possible to determine the exact origin of the final failure.

Sources:

https://www.atsb.gov.au/publications/investigation_reports/1983/aair/aair198301294/
https://www.atsb.gov.au/media/34148/aair198301294.pdf

Accident investigation:
cover
  
Investigating agency: BASI
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
04-Jul-2018 09:28 Pineapple Added

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