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Last updated: 21 April 2018
Datum:Dienstag 29 Oktober 1991
Flugzeugtyp:Silhouette image of generic B703 model; specific model in this crash may look slightly different
Boeing 707-368C
Fluggesellschaft:Royal Australian Air Force - RAAF
Kennzeichen: A20-103
Werknummer: 21103/905
Baujahr: 1975
Triebwerk: 4 Pratt & Whitney JT3D-3B
Besatzung:Todesopfer: 5 / Insassen: 5
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 5 / Insassen: 5
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:43 km (26.9 Meilen) S vom Land entfernt von East Sale, VIC, Australia (   Pacific Ocean)
Flugphase: Während des Fluges (ENR)
Flug von:Richmond RAAF Base, NSW (YSRI), Australien
Flug nach:Avalon Airport, VIC (AVV/YMAV), Australien
The RAAF Boeing 707 stalled and crashed into the sea. The crash was attributed to a simulation of asymmetric flight resulting in a sudden and violent departure from controlled flight.

Probable Cause:

The Board of Inquiry concluded that the instructor devised a demonstration of asymmetric flight that was 'inherently dangerous and that was certain to lead to a sudden departure from controlled flight' and that he did not appreciate this. The Board noted there were deficiencies in the acquisition and documentation of 707 operational knowledge within the RAAF combined with the absence of effective mechanisms to prevent the erosion of operational knowledge at a time when large numbers of pilots were resigning from the air force. There was no official 707 QFI conversion course and associated syllabus and no adequate QFI instructors' manual. There were deficiencies in the documented procedures and limitations pertaining to asymmetric flight in the 707 and a lack of fidelity in the RAAF 707 simulator in the flight regime in which the accident occurred, which, assuming such a requirement existed, required actual practise in flight. 'The captain acted with the best of intentions but without sufficient professional knowledge or understanding of the consequences of the situation in which he placed the aircraft,' the Board said.

» Scramble 150


photo of Boeing 707-368C A20-103
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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Richmond RAAF Base, NSW to Avalon Airport, VIC as the crow flies is 751 km (469 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s 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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