ASN Wikibase Occurrence # 46448
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| Date: | Saturday 10 January 1998 |
| Time: | 19:25 LT |
| Type: |  Hughes 269C |
| Owner/operator: | |
| Registration: | ZK-HHS |
| MSN: | 1230259 |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | near Ngongotaha, Rotorua -
 New Zealand
|
| Phase: | En route |
| Nature: | |
| Departure airport: | |
| Investigating agency: | CAA NZ |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter was patrolling an 11kV power line, which had been suffering from some unexplained power interruptions. During the patrol, the main rotor blades struck one conductor of a three-conductor, 110kV transmission line, which crossed about six metres above the 11kV line being inspected. Location 5km north of Ngongotaha.
The primary cause of this accident was the failure by the pilot to detect another power line, which crossed above the line being inspected.
Contributory factors were that: The pilot and the observer were not adequately trained; A number of briefings were omitted or inadequate; The lack of a formal system for the selection, direction and control of the aerial work undertaken by the contracting organisation; Environmental factors: The suitability of the available helicopter.
Accident investigation:
 |
|
Sources:
http://www.caa.govt.nz/Accidents_and_Incidents/Accident_Reports/ZK-HHS_Fatal_10Jan1998.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Nov-2008 10:35 | ASN archive | Added |
| 16-Aug-2014 13:58 | Aerossurance | Updated [Time, Cn, Location, Phase, Nature, Source, Narrative] |
| 07-Aug-2020 04:38 | Ron Averes | Updated [Location, Nature, Narrative] |
Corrections or additions? ... Edit this accident description
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