Accident Piper PA-28-180 Cherokee VH-WDH,
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ASN Wikibase Occurrence # 213738
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Date:Wednesday 5 January 1972
Type:Silhouette image of generic P28A model; specific model in this crash may look slightly different    
Piper PA-28-180 Cherokee
Registration: VH-WDH
Fatalities:Fatalities: 2 / Occupants: 4
Aircraft damage: Destroyed
Location:Acacia Ridge, near Archerfield, QLD -   Australia
Phase: Approach
Departure airport:Bankstown YSBK
Destination airport:Archerfield YBAF
Investigating agency: BASI
Confidence Rating: Accident investigation report completed and information captured
At Bankstown, the pilot submitted a flight plan which indicated that the aircraft would cruise at 5,500 feet to Port Macquarie and then at 6,500 feet to Archerfield. Fuel consumption was shown as 8 gallons per hour and fuel on board the aircraft as 40 gallons. The time required for the flight was 237 minutes but, through a miscalculation, this was shown as 227 minutes. The pilot's normal operating procedure was to lean the fuel mixture only while cruising above 5,000 feet. After departure the pilot elected to cruise at altitudes between 2,300 and 3,000 feet and the mixture control remained selected to Rich. At Grafton, because of the weather ahead, the pilot diverted to a coastal route and this was expected to add seven minutes to the flight time. Whilst on descent to Archerfield, after some 242 minutes of flight, the fuel pressure indication dropped to zero and the engine lost all power. The pilot was unable to restore engine power so he advised Archerfield Tower of his predicament and decided to attempt a forced landing on the airport. About one mile from Archerfield, it became obvious to the pilot that he would not reach the landing area. He attempted to turn the aircraft sharply to the right for a landing on a suburban street, but whilst in the turn the port wing of the aircraft struck and severed power lines adjacent to the street. The aircraft then plunged to the ground, right wing first, and came to rest, severely damaged against a timber house. Examination of the aircraft revealed no evidence of pre-impact malfunction. Records of past flights with this aircraft and fuel consumption tests conducted subsequently indicated that by operating at the relevant power setting with the mixture correctly leaned a fuel consumption consistent with that appearing on the flight plan could be realised. When the engine was operated with the mixture in full RICH the fuel consumption was significantly higher and the engine failure had occurred after a flight time compatible with fuel usage at this higher rate. At the accident site, despite both fuel tanks having been punctured, there was no evidence of any significant quantity of fuel having been spilt. There was attached to the instrument panel an ambiguous placard of undetermined origin for converting the fuel contents indication to imperial gallons.

Accident investigation:
Investigating agency: BASI
Report number: 
Status: Investigation completed
Download report: Final report


Revision history:

29-Jul-2018 05:46 Pineapple Added

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