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ASN Wikibase Occurrence # 169613
Last updated: 14 May 2019
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Date:19-SEP-2008
Time:17:10 LT
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different
Eurocopter AS350 BA
Owner/operator:
Registration: VH-BUK
C/n / msn: 2197
Fatalities:Fatalities: 0 / Occupants:
Other fatalities:0
Aircraft damage: None
Location:Hoxton Park Aerodrome SE M/6km -   Australia
Phase: En route
Nature:Unknown
Departure airport:Fitzroy Falls
Destination airport:Rosehill, NSW
Narrative:
Experienced the onset of severe vibration within the tail rotor controls and made an emergency landing at Casula High School. Subsequent examination of the aircraft revealed that one of the tail rotor pitch change links had fractured, resulting in lateral movement of the tail rotor and damage to the tail boom and tail cone.

The pitch link had fractured from fatigue cracking that was the result of stresses induced in the link by excessive play in the heavily-worn spherical bearing. It was probable that bearing wear outside of maintenance manual limits existed, but was not detected, during the most recent after last flight (ALF) inspection.

As a result of this occurrence, the helicopter manufacturer released Safety Information Notice (No. 2000-S-65)

Sources:

http://www.atsb.gov.au/publications/investigation_reports/2008/aair/ao-2008-068.aspx


Revision history:

Date/timeContributorUpdates
08-Sep-2014 14:02 Aerossurance Added

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