ASN Wikibase Occurrence # 48534
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| Date: | Sunday 30 November 2003 |
| Time: | 10:15 |
| Type: |  Hughes 369HS |
| Owner/operator: | Mountain Helicopters |
| Registration: | ZK-HCC |
| MSN: | 410318S |
| Year of manufacture: | 1971 |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Location: | Fox Glacier, Westland NP -
 New Zealand
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | TAIC |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
ZK-HCC, a Hughes 369HS helicopter, was on a scenic flight near the head of Fox Glacier at about 9500 feet when its engine power turbine and main rotor speed suddenly reduced.
The pilot descended the helicopter to 6500 feet where power was restored. Several minutes later a second power loss occurred so he carried out an emergency landing at the base of Fox Glacier. The right rear skid broke when it struck a large rock during the landing, and the helicopter consequently rolled onto its right side. No one was seriously injured in the accident.
A power turbine governor underspeed condition resulted when electrical continuity to the governor switch on the collective lever was lost, thus reducing the power turbine speed to its minimum setting.
Safety issues identified were the need to ensure that governor switches were securely fastened to the collective lever, and to refresh pilots' knowledge about power turbine governor underspeeds.
Accident investigation:
 |
|
Sources:
http://www.taic.org.nz/AviationReports/tabid/78/ctl/Detail/mid/482/InvNumber/2003-007/Page/3/Default.aspx?SkinSrc=[G]skins/taicAviation/skin_aviation
Images:
ZK-HCC at Fox Glacier 09-NOV-1998, (c) Harro Ranter
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Nov-2008 11:43 | harro | Added |
| 01-Feb-2022 10:20 | Ron Averes | Updated [Location, Narrative] |
Corrections or additions? ... Edit this accident description
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