ASN Wikibase Occurrence # 191010
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| Date: | Monday 31 October 2016 |
| Time: | 12:58 LT |
| Type: |  Robinson R44 Raven II |
| Owner/operator: | Helinorth |
| Registration: | ZK-HTH |
| MSN: | 13529 |
| Year of manufacture: | 2014 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Glenbervie Forest, Northland -
 New Zealand
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | Glenbervie Forest |
| Glenbervie Forest | |
| Investigating agency: | TAIC |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot and a forestry contractor were using the helicopter to conduct a pre-spraying survey to ensure that the boundaries of the target blocks were correctly identified, and to check for any hazards and obstacles. he helicopter was flying away from the blocks being surveyed and had just crossed a ridge when it crashed into dense bush and caught fire. The helicopter was destroyed and the two occupants were fatally injured. The ELT was destroyed by the post-impact fire, which explained why RCCNZ received one emergency transmission only.
The Transport Accident Investigation Commission made the following findings:
- The damage to the helicopter sustained in the accident sequence and subsequent fire, and the lack of any other incontrovertible evidence, meant that the cause or causes of the accident could not be determined.
- A bolt that attaches the pitch link to the pitch horn on one of the main rotors was found to be missing. It is virtually certain that the missing bolt came out of position during the impact sequence, meaning it did not contribute to the accident.
- It was not possible to determine why the cyclic extension for the left seat was installed and if it was being used at the time of the accident or at any time during the flight.
Accident investigation:
 |
|
Sources:
http://www.radionz.co.nz/news/national/316937/two-dead-after-helicopter-crash-in-northland
http://www.newshub.co.nz/home/new-zealand/2016/11/glenbervie-forest-helicopter-crash-post-mortem-expected.html
https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11739203
http://www.radionz.co.nz/news/national/316654/deaths-place-robinson-helicopters-on-watchlist
https://www.nzherald.co.nz/northern-advocate/news/article.cfm?c_id=1503450&objectid=11739961
https://www.verticalmag.com/features/undetermined-reasons/
https://taic.org.nz/inquiry/ao-2016-007
Images:
Ardmore 10Jun2015
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-Oct-2016 03:34 | angels one five | Added |
| 31-Oct-2016 16:03 | Aerossurance | Updated [Aircraft type, Location, Narrative] |
| 01-Nov-2016 01:08 | Geno | Updated [Source] |
| 01-Nov-2016 03:54 | angels one five | Updated [Location, Source] |
| 02-Nov-2016 09:02 | Anon. | Updated [Damage] |
| 02-Nov-2016 14:29 | Aerossurance | Updated [Time, Registration, Cn, Operator, Source] |
| 02-Nov-2016 16:27 | Anon. | Updated [Aircraft type] |
| 04-Nov-2016 06:58 | flyernzl | Updated [Aircraft type, Phase, Photo, ] |
| 05-Nov-2016 16:16 | Aerossurance | Updated [Source] |
| 13-Nov-2016 04:37 | Aerossurance | Updated [Aircraft type, Phase, Source] |
| 10-Mar-2018 20:37 | Anon. | Updated [Embed code] |
| 10-Mar-2018 20:38 | harro | Updated [Embed code] |
| 30-Mar-2019 17:21 | Aerossurance | Updated [Phase, Departure airport, Destination airport, Source, Narrative] |
| 01-Apr-2019 17:02 | harro | Updated [Time, Aircraft type, Accident report, ] |
| 06-Oct-2021 01:01 | Ron Averes | Updated [Location] |
| 06-Oct-2021 01:01 | Ron Averes | Updated [[Location]] |
Corrections or additions? ... Edit this accident description
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