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Last updated: 18 January 2022
Status:
Datum:maandag 12 maart 1990
Type:Silhouette image of generic NOMA model; specific model in this crash may look slightly different
GAF Nomad N.24A
Luchtvaartmaatschappij:Royal Australian Air Force - RAAF
Registratie: A18-401
Constructienummer: 128
Bouwjaar: 1982
Aantal vlieguren:433
Bemanning:slachtoffers: 1 / inzittenden: 1
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 1 / inzittenden: 1
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:nabij Mallala, SA (   AustraliŽ)
Fase: Nadering (APR)
Soort vlucht:Militair
Vliegveld van vertrek:Edinburgh RAAF Station, SA (YPED), AustraliŽ
Vliegveld van aankomst:Edinburgh RAAF Station, SA (YPED), AustraliŽ
Beschrijving:
The GAF Nomad N.24A transport plane was destroyed in an accident near Mallala, SA, Australia. The pilot was killed.
The tail plane broke off in flight and the aircraft crashed. The aircraft was allocated by the Royal Australian Air Force (RAAF) to the Aircraft Research and Development Unit (ARDU).

After being manufactured in 1982, the airplane was used by GAF (renamed Aerospace Technologies of Australia - ASTA in 1987) for testing. Amongst others, service records indicated 177 hours of single engine ground running. This meant that the airplane was subjected to many high frequency asymmetric cycles.
Cracks initiated and grew predominately due to torsional loading. Upon delivery to the RAAF, the airplane was inspected but this failed to detect significant cracking.
The tailplane centre section failed in flight, 19 hours after the inspection.

Bronnen:
» Investigation of Nomad inflight tailplane failure / Australia DoD
» Scramble Vol.12, nr.02


Veiligheidsmaatregelen
Following this crash all Nomads in the RAAF fleet were grounded.

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This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkís opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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