171st Special Operations Aviation Squadron

[17] On 29 November 2006, a Squadron Black Hawk helicopter crashed during Operation Quickstep while attached to HMAS Kanimbla off the coast of Fiji.

[12] The helicopter's pilot, Captain Mark Bingley, and Trooper Joshua Porter from the Special Air Service Regiment were killed in the crash.

[24][25] In December 2015, Jane's Defence Weekly reported that the Chief of Army had delayed the retirement of the Black Hawk until the end of 2021.

[24] This required developing a Fast Roping and Rappelling Extraction System (FRRES) and a gun mount for the cabin door.

[29][30] In 2016, the Australian government in the Defence White Paper 2016 announced a plan to acquire light helicopters for the regiment under Project Land 2097 Phase 4 that would fulfil roles that the MRH90 was unable to perform.

[31][32][33] In March 2023, Australian Defence Magazine reported that the light helicopter project had been cancelled as the UH-60M Black Hawk the Army was acquiring would fulfil this role.

[35][36] In September 2023, the MRH90 fleet was retired earlier than planned following the fatal crash of a 173rd Special Operations Aviation Squadron MRH90 during exercise Talisman Sabre in July 2023.

A Commando from 1st Commando Regiment jumping from a Black Hawk in 2013