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| Date: | Saturday 3 June 2023 |
| Time: | 09:49 LT |
| Type: |  MD Helicopters MD 520N |
| Owner/operator: | Heliworks Queenstown |
| Registration: | ZK-IFT |
| MSN: | LN106 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Glenorchy, Otago -
 New Zealand
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | CAA NZ |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
During a commercial flight with passengers onboard, while climbing through 4500 feet AMSL, a sudden and significant
power loss occurred. The pilot conducted a forced landing on sloping ground. The aircraft rolled over and the occupants, who were uninjured, were able to extract themselves from the aircraft.
The engine was removed and sent to a test and overhaul facility where, with CAA oversight, it was determined that
the fuel control unit governor spring had failed, causing the metered fuel supply to reduce to minimum flow. Rolls-Royce
in the USA is working to determine the reason for the spring failure.
Sources:
NTSB GAA23WA169
https://www.queenstownhelicopters.nz/our-helicopter-fleet/
https://www.aviation.govt.nz/assets/publications/vector/VectorWinter-2024-web-lr.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Jun-2023 07:46 | ASN Update Bot | Added |
| 26-Jun-2023 07:56 | harro | Updated |
| 16-Sep-2023 09:47 | Ron Averes | Updated |
| 01-Jul-2024 13:29 | harro | Updated [Date, Time, Source, Damage, Narrative] |
Corrections or additions? ... Edit this accident description
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