ASN Wikibase Occurrence # 46448
Last updated: 26 April 2019
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| Date: | 10-JAN-1998 |
| Time: | 19:25 LT |
| Type: |  Hughes 269C |
| Owner/operator: | |
| Registration: | ZK-HHS |
| C/n / msn: | 1230259 |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Written off (damaged beyond repair) |
| Location: | 5 km north of Ngongotaha -
 New Zealand
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | |
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.
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.
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] |
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