Wirestrike Accident Hughes 269C ZK-HHS,
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ASN Wikibase Occurrence # 46448
 
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Date:Saturday 10 January 1998
Time:19:25 LT
Type:Silhouette image of generic H269 model; specific model in this crash may look slightly different    
Hughes 269C
Owner/operator:
Registration: ZK-HHS
MSN: 1230259
Fatalities:Fatalities: 1 / Occupants: 2
Aircraft damage: Destroyed
Location:near Ngongotaha, Rotorua -   New Zealand
Phase: En route
Nature:
Departure airport:
Destination airport:
Investigating agency: CAA NZ
Confidence Rating: Accident investigation report completed and information captured
Narrative:
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:
cover
  
Investigating agency: CAA NZ
Report number: 
Status: Investigation completed
Duration:
Download report: Final report

Sources:

http://www.caa.govt.nz/Accidents_and_Incidents/Accident_Reports/ZK-HHS_Fatal_10Jan1998.pdf

Revision history:

Date/timeContributorUpdates
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]

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