ASN Wikibase Occurrence # 161721
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| Date: | Monday 28 October 2013 |
| Time: | 15:20 |
| Type: |  Eurocopter AS 350B2 Ecureuil |
| Owner/operator: | The Helicopter Line |
| Registration: | ZK-IMJ |
| MSN: | 9057 |
| Year of manufacture: | 2002 |
| Fatalities: | Fatalities: 0 / Occupants: 7 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tyndall Glacier, Richardson Mountains, Otago -
 New Zealand
|
| Phase: | Landing |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Queenstown Airport |
| near Tyndall Glacier | |
| Investigating agency: | TAIC |
| Confidence Rating: |  Accident investigation report completed and information captured |
On 28 October 2013 a party of 12 tourists was taken in two AS350 Squirrel helicopters (ZK-IMJ and ZK-HAE) operated by The Helicopter Line from Queenstown aerodrome to a snowfield approximately two kilometres southeast of Mount Tyndall in Otago province. The first helicopter (ZK-HAE) landed. The second helicopter (ZK-IMJ) was about to land but the pilot carried out a go-around. During the go-around the helicopter came close to colliding with the main rotors of the parked helicopter.
On the second approach the helicopter drifted towards the parked helicopter and its tail contacted the main rotor blades of the parked helicopter. The blades severed the lower vertical stabiliser and part of the tail rotor of the airborne helicopter. The rest of the tail rotor assembly and vertical stabiliser detached immediately.
The helicopter was uncontrollable without the tail rotor assembly. It spun rapidly a number of times before climbing slightly then crashing about 70 metres in front of the parked helicopter. The pilot received a serious injury and all of his passengers received minor injuries.
The Transport Accident Investigation Commission (Commission) found that blowing snow very likely contributed to the near collision during the go-around, but it was unable to determine the cause of the collision. The Commission made findings that excluded technical, helicopter performance and other environmental factors as causes of the collision. The possibility that the pilot misjudged his approach, causing the accident, could not be excluded. There was no evidence to suggest that the pilot had a medical condition that contributed to the accident, but that possibility could not be excluded.
The Commission identified the following safety issues during the inquiry:
- when pilots do not inform their flight-following organisations of changes to their routes or destinations, any search and rescue action that is required could be delayed or misdirected
- the widespread practice of allowing passengers to leave and return to a helicopter parked on snow while the rotors are turning is hazardous.
A recommendation was made to the Director of Civil Aviation that he ensure that helicopter operators who conduct snow landings address in their safety management systems the hazard of passenger disembarkation and embarkation during snow landings while the rotors are turning.
Upon landing, the helicopter crashed into a parked helicopter ZH-HAE. The pilot sustained serious injuries and 11 passengers (as it appears 6 passengers from this helicopter and 5 passengers from the parked helicopter) sustained minor injuries.
Accident investigation:
 |
|
Sources:
https://taic.org.nz/inquiries?SkinSrc=[G]skins/taicAviation/skin_aviation
http://www.townsvillebulletin.com.au/news/breaking-news/pilot-passengers-hurt-in-nz-chopper-crash/story-fnjbnxoj-1226748426323
https://nz.news.yahoo.com/pilot-passengers-injured-in-chopper-crash-19580235.html
https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11147913
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2013 08:12 | gerard57 | Added |
| 28-Oct-2013 19:19 | gerard57 | Updated [Aircraft type, Operator, Location, Source] |
| 28-Oct-2013 19:20 | harro | Updated [Aircraft type] |
| 28-Oct-2013 19:30 | gerard57 | Updated [Narrative] |
| 28-Oct-2013 19:47 | harro | Updated [Time] |
| 31-Oct-2013 04:58 | Cedric3204 | Updated [Registration, Cn, Source, Narrative] |
| 23-May-2016 19:22 | Aerossurance | Updated [Aircraft type, Source] |
| 23-Sep-2016 18:54 | Aerossurance | Updated [Aircraft type, Location, Nature] |
| 29-Jul-2017 08:57 | harro | Updated [Location, Departure airport, Destination airport, Source, Narrative] |
| 02-Feb-2022 04:12 | Ron Averes | Updated [Location] |
| 07-Feb-2022 18:38 | BEAVERSPOTTER | Updated [Aircraft type, Country] |
| 07-Feb-2022 18:38 | harro | Updated [Country] |
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