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ASN Wikibase Occurrence # 191419
Last updated: 12 February 2020
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Date:14-NOV-2016
Time:13:50 LT
Type:Silhouette image of generic R66 model; specific model in this crash may look slightly different
Robinson R66
Owner/operator:HeliOps Southland Ltd
Registration: ZK-HAG
C/n / msn: 0015
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Hokonui -   New Zealand
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Agricultural
Departure airport:
Destination airport:
Investigating agency: TAIC New Zealand
Narrative:
On 14 November 2016, a Robinson R66 helicopter was conducting an agricultural spraying operation around the Hokonui Hills in Southland, with one pilot on board. On the last spray run for the day the pilot received an indication of low rotor revolutions-perminute, which was a critical condition that required immediate action. However, at that time the helicopter was too low to recover from the situation, so the pilot turned the helicopter and attempted a ‘run-on landing’ – a manoeuvre used to transition from forward flight to a landing on the surface when there is insufficient power available to sustain a hover.

The helicopter landed heavily and pitched forward, causing the main rotor blades to contact the ground. The helicopter was substantially damaged, but the pilot escaped with minor injuries only.
The Transport Accident Investigation Commission (Commission) found that the condition of low rotor revolutions-per-minute very likely resulted from a momentary reduction in available engine power caused by contaminated fuel.
The Commission also found that the operator’s refuelling procedures for remote sites left several opportunities for fuel contamination to occur.

Sources:

https://www.odt.co.nz/regions/southland/chopper-crash-investigated
http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20161117X64217&key=1

Accident investigation:
cover
  
Investigating agency: TAIC New Zealand
Status: Investigation completed
Duration: 2 years
Download report: Final report


Images:


Photo: TAIC

Revision history:

Date/timeContributorUpdates
18-Nov-2016 09:12 R M Williams Added
18-Nov-2016 09:13 harro Updated [Other fatalities, Damage, Narrative]
19-Nov-2016 12:30 Aerossurance Updated [Time, Source, Narrative]
05-Dec-2018 20:58 harro Updated [Operator, Location, Narrative, Photo, Accident report, ]

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