Loss of control Accident Gulfstream 695A Jetprop Commander 1000 VH-HPY, Saturday 4 November 2023
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Date:Saturday 4 November 2023
Time:c. 14:30 LT
Type:Silhouette image of generic AC95 model; specific model in this crash may look slightly different    
Gulfstream 695A Jetprop Commander 1000
Owner/operator:Agair Logistics Pty Ltd
Registration: VH-HPY
MSN: 96051
Year of manufacture:1982
Engine model:Garrett Turbineo TPE331-10-511K
Fatalities:Fatalities: 3 / Occupants: 3
Other fatalities:0
Aircraft damage: Destroyed
Location:70 km SE of Cloncurry, QLD -   Australia
Phase: En route
Nature:Fire fighting
Departure airport:Toowoomba Airport, QLD (TWB/YTWB)
Destination airport:Mount Isa Airport, QLD (ISA/YBMA)
Investigating agency: ATSB
Confidence Rating: Information verified through data from accident investigation authorities
A Gulfstream 695A Jetprop Commander 1000, operated by Agair Logistics, callsign "Birddog 370", crashed about 70km southeast of Cloncurry, Queensland.
The three occupants perished and the aircraft was destroyed.

According to preliminary information, the purpose of the flight was for mapping areas of recent bushfire activity in western Queensland and gathering vital terrain data for use during future bushfires. While the survey area was not subject to a bushfire at the time, the flight was part of ongoing fire response in Queensland.

Preliminary information shows there were communication difficulties while the aircraft was in cruise flight at FL280. After a requested and read back frequency change two-way communications with the flight were lost for about an hour.
When contact was re-established, radio recordings during this period indicate that the pilot’s rate and volume of speech had substantially lowered from earlier communications and was worsening.
At 14:19 the controller requested the pilot change frequency to 122.4 MHz, but no response was received. Between 14:20 and 14:27 the controller attempted to contact the pilot 8 times without receiving a response.

ADS-B data indicated that at 14:20:50 the aircraft’s groundspeed began to reduce from a cruise groundspeed of about 225 kt (417 km/h), while heading and altitude remained steady. At 14:25:25, the groundspeed had decreased to about 104 kt (193 km/h) and the aircraft departed controlled flight. The aircraft initially entered a descending anticlockwise turn with an increasing rate of descent. At an altitude of about 10,000 ft, the aircraft transitioned into a tight clockwise helical descent, likely an aerodynamic spin, with a subsequent average rate of descent of about 13,500 ft/m.

Accident investigation:
Investigating agency: ATSB
Report number: AO-2023-053
Status: Preliminary report
Duration: 3 months
Download report: Preliminary report



https://cdn.jetphotos.com/full/5/83161_1613708204.jpg (photo)

History of this aircraft

Ex ZS-KZY, N9971S



Revision history:

04-Nov-2023 09:50 hmmptwizzle Added
04-Nov-2023 09:51 harro Updated
04-Nov-2023 10:12 Aerossurance Updated
04-Nov-2023 10:26 RobertMB Updated
04-Nov-2023 10:54 Captain Adam Updated
04-Nov-2023 18:16 aaronwk Updated
04-Nov-2023 18:45 Anon. Updated
11-Nov-2023 08:10 Ron Averes Updated [Nature, Narrative]
07-Feb-2024 10:27 ASN Updated [Narrative, Accident report]

Corrections or additions? ... Edit this accident description

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