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ASN Wikibase Occurrence # 62335
Last updated: 2 December 2021
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Type:Silhouette image of generic P28R model; specific model in this crash may look slightly different
Piper PA-28R-180 Cherokee Arrow
Owner/operator:Manukau Flying School
Registration: ZK-CUO
MSN: 28R-30761
Fatalities:Fatalities: 4 / Occupants: 4
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Kirikau, 12 miles SW of Taumarunui -   New Zealand
Phase: En route
Departure airport:Ardmore NZAR
Destination airport:Napier NZNR
Pilot: Norman Hylton Radd.
Passengers: Bernard Clarence Moore, William Kenneth Aston, and Gordon James Cunningham.

Broke up in flight, crashed and burned.

The non-instrument rated pilot lost control while flying in cloud or among cloud formations. The aircraft entered a high speed, power on spiral dive, resulting in the loss of the stabilators, followed by the outer sections of both wings.

The aircraft crashed in steep, hilly country about 900 feet AMSL and burned out.
This was not a survivable accident.

The accident report contained the following conclusions :
" 2.2.1. (e). Until the impact occurred the engine and propeller were capable of functioning normally.
(f). Before the accident occurred the aircraft was flying in cloud or among cloud formations and the pilot, deprived of visual reference essential to maintenance of attitude control , became spatially disorientated.
(g). As a result of spatial disorientation, the aircraft entered a power-on spiral dive during which it exceeded design manoeuvrability speed limitations and failure and separation of the stabilator then occurred.
(h). Separation of the stabilator from the structure caused irretrievable loss of control .
(i). It has not been determined whether the pilot deliberately entered cloud before the accident occurred.
2.2.2 Cause - The accident was caused by in-fllght failure and detachment of the stabilator through the effects of flutter generated at a speed in excess of the design manoeuvrability limitations after the pilot had become spatially disorientated in conditions of cloud. "

Aircraft Accident Report No. 72-052.


Revision history:

22-May-2009 12:58 XLerate Added
18-Jul-2010 19:45 angels one five Updated [Aircraft type, Cn, Operator, Total fatalities, Total occupants, Other fatalities, Location, Phase, Nature, Damage, Narrative]
05-Jun-2011 01:51 angels one five Updated [Date, Time, Aircraft type, Location, Nature, Departure airport, Destination airport, Narrative]
05-Jun-2011 01:53 angels one five Updated [Narrative]
05-Jun-2011 01:54 angels one five Updated [[Narrative]]
14-Dec-2014 12:18 angels one five Updated [Time, Aircraft type, Operator, Location, Departure airport, Destination airport, Narrative]

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