Engine malfunction and in-flight shutdown involving Cessna Grand Caravan 208B, VH-KSA, near Kalumburu Aerodrome, Western Australia, on 11 December 2025

AO-2025-075

Summary

The ATSB is investigating an occurrence involving a Cessna 208 Caravan VH-KSA, near Kalumburu Aerodrome, Western Australia, on 11 December 2025.

The pilot reduced engine power in a late downwind position on final approach to Kalumburu Aerodrome when the engine had an uncommanded rapid acceleration to full power with associated check torque and check temperature warnings on the master warning panel.

The pilot manipulated the power lever with no engine power response to inputs. The pilot elected to shut the engine down, feather the propeller and conduct a power off glide in landing. The landing was successfully completed without incident.

The draft report internal review process has been completed. The draft report has been distributed to directly involved parties (DIPs) to check factual accuracy and ensure natural justice. Any submissions from those parties will be reviewed and, where considered appropriate, the draft report will be amended accordingly.

Following the external review process, any submissions and amendments to the draft report are internally reviewed. Once approved, the final report is prepared for publication and dissemination and released to DIPs prior to its public release.

The final report will be released at the conclusion of the investigation. Should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties, so that appropriate safety action can be taken.

Last updated:

Occurrence summary

Investigation number AO-2025-075
Occurrence date 11/12/2025
Occurrence time and timezone 0900 Australian Western Standard Time
Location Near Kalumburu Aerodrome
State Western Australia
Report status Pending
Anticipated completion Q4 2026
Investigation level Defined
Investigation type Occurrence Investigation
Investigation phase Final report: External review
Investigation status Active
Mode of transport Aviation
Aviation occurrence category Abnormal engine indications, Engine failure or malfunction
Occurrence class Serious Incident
Highest injury level None

Aircraft details

Manufacturer Cessna Aircraft Company
Model 208B
Registration VH-KSA
Serial number 208B0516
Aircraft operator Aviair Pty Ltd
Sector Turboprop
Operation type Part 135 Air transport operations - smaller aeroplanes
Activity Commercial air transport-Non-scheduled-Passenger transport charters
Departure point Broome Airport, Western Australia
Destination Kalumburu Aerodrome, Western Australia
Injuries None
Damage Nil