ASN Wikibase Occurrence # 15019
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Sunday 12 May 1991 |
| Time: | 21:33 LT |
| Type: |  Aérospatiale SA 330J Puma |
| Owner/operator: | Mayne-Bristow Helicopters |
| Registration: | VH-WOF |
| MSN: | 1508 |
| Year of manufacture: | 1978 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Location: | Mermaid Sound, 35 km NW Karratha -
 Australia
|
| Phase: | Approach |
| Nature: | Offshore |
| Departure airport: | Karratha, WA |
| MV North West Swift | |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
The aircraft entered a vortex ring state after it descended through 480ft during an approach, on a dark moonless night, to the LNG tanker's helideck to collect a marine pilot. The aircraft rate of descent accelerated from 800ft/min to 4000ft/Min in 6.6 secs as it descended from 480ft to 100ft. A lack of visual cues and inadequate CRM prevented the crew from recognising the abnormal situation until the aircraft was well into the descent. The rate of descent was arrested but too late to prevent impact with the water. Both occupants were rescued approximately 1 h after they evacuated the helicopter.
Sources:
http://www.atsb.gov.au/publications/investigation_reports/1991/AAIR/aair199100126.aspx
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Mar-2008 23:04 | Andrew Whitton | Added |
| 18-Feb-2010 10:27 | TB | Updated [Aircraft type, Operator, Location, Nature, Source, Damage] |
| 18-Feb-2010 11:39 | TB | Updated [Operator] |
| 09-Aug-2014 15:34 | Aerossurance | Updated [Narrative] |
| 01-May-2016 16:16 | Aerossurance | Updated [Time, Destination airport, Source, Narrative] |
| 24-Jun-2017 12:33 | Aerossurance | Updated [Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation