Piper PA-31-350 Chieftain VH-WGI Launceston Tasmania 17 September 1993
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Department of Transport Bureau of Air Safety Investigation INVESTIGATION REPORT 9302851 Piper PA-31-350 Chieftain VH-WGI Launceston Tasmania 17 September 1993 Released by the Director of the Bureau of Air Safety Investigation under the provisions of Air Navigation Regulation 283 When the Bureau makes recommendations as a result of its investigations or research, safety (in accordance with its charter) is its primary consideration. However, the Bureau fully recognises that the implementation of recommendations arising from its investigations will in some cases incur a cost to the industry. Readers should note that the information in BASI reports is provided to promote aviation safety: in no case is it intended to imply blame or liability. ISBN 0 642 23527 9 November 1995 This report was produced by the Bureau of Air Safety Investigation (BASI), PO Box 967, Civic Square ACT 2608. The Director of the Bureau authorised the investigation and the publication of this report pursuant to his delegated powers conferred by Air Navigation Regulations 278 and 283 respectively. Readers are advised that the Bureau investigates for the sole purpose of enhancing aviation safety. Consequently, Bureau reports are confined to matters of safety significance and may be misleading if used for any other purpose. As BASI believes that safety information is of greatest value if it is passed on for the use of others, copyright restrictions do not apply to material printed in this report. Readers are encouraged to copy or reprint for further distribution, but should acknowledge BASI as the source. ii CONTENTS GLOSSARY OF TERMS AND ABBREVIATIONS ............................................................................................................................. vi INTRODUCTION ................................................................................................................................................................................................................................. 1 SYNOPSIS ........................................................................................................................................................................................................................................................ 3 1. FACTUAL INFORMATION ................................................................................................................................................................................ 3 1.1 History of the flight .............................................................................................................................................................................. 3 1.2 Injuries to persons ..................................................................................................................................................................................... 6 1.3 Damage to aircraft ..................................................................................................................................................................................... 6 1.4 Other damage ................................................................................................................................................................................................... 6 1.5 Personnel information ......................................................................................................................................................................... 6 1.5.1 Pilot in command ..................................................................................................................................................... 6 1.5.2 Previous 72 hours history ............................................................................................................................ 7 1.6 Aircraft information ................................................................................................................................................................................ 8 1.6.1 Significant particulars ........................................................................................................................................ 8 1.6.2 Aircraft history .............................................................................................................................................................. 8 1.6.3 Weight and balance ................................................................................................................................................ 8 1.7 Meteorological information ......................................................................................................................................................... 9 1.7.1 Introduction ...................................................................................................................................................................... 9 1.7.2 Forecasts ................................................................................................................................................................................... 9 1.7.3 Weather conditions at Launceston ............................................................................................. 10 1.8 Aids to navigation and instrument approaches ............................................................................................ 10 1.8.1 Aids to navigation ................................................................................................................................................. 10 1.8.2 Instrument approaches ................................................................................................................................. 10 1.8.3 DME arrivals .................................................................................................................................................................. 11 1.8.4 Circling approaches ............................................................................................................................................ 12 1.9 Communications ....................................................................................................................................................................................... 13 1.9.1 Summary of communications ........................................................................................................... 13 1.10 Aerodrome information .................................................................................................................................................................. 16 1.10.1 General .................................................................................................................................................................................... 16 1.10.2 Lighting .................................................................................................................................................................................. 17 1.10.3 Other lighting ............................................................................................................................................................... 18 1.11 Flight recorders/GPWS ..................................................................................................................................................................... 18 1.12 Wreckage and impact information ............................................................................................................................ 18 1.12.1 Accident site description ............................................................................................................................. 18 1.12.2 Aircraft path/wreckage trail ................................................................................................................... 19 1.12.3 Structure ............................................................................................................................................................................... 20 1.12.4 Flight controls .............................................................................................................................................................. 20 1.12.5 Power plants .................................................................................................................................................................... 20 1.12.6 Propellers ............................................................................................................................................................................. 21 1.12.7 Landing gear and hydraulic power ............................................................................................. 21 1.12.8 Fuel system ........................................................................................................................................................................ 21 1.12.9 Instruments ...................................................................................................................................................................... 22 1.12.10 Remaining systems ............................................................................................................................................... 22 1.12.11 Maintenance history .......................................................................................................................................... 22 iii 1.13 Medical and pathological information .................................................................................................................