The drama unfolded after Barty upset Sharapova 4-6, 6-1, 6-4 at the Rod Laver Arena.
In the immediate aftermath the spider-cam, which hovers above the court on a cable, moving vertically and horizontally to offer an overhead perspective, attempted to swoop down closer to the action.
Instead the camera crashed into the sun shield of shocked umpire Alison Hughes, removing it completely and narrowly missing her head.
Stunned by the spider-cam malfunction, fans took to Twitter to express their concern.
Dear oh dear, out of control spider cam – yikes !
— Jim Wilson (@JimWilsonTV) January 20, 2019
That poor chair umpire
— Chewy Yorkie (@ChewyYorkie) January 20, 2019
— Ben Rothenberg (@BenRothenberg) January 20, 2019
Another social media user Richard Ings said people should not underplay how serious the incident was.
One cannot express how serious this incident is.
The workplace should be safe.
The camera at that speed could literally have killed the chair umpire.
Where was the risk management plan to ensure the risk of injury from this spider cam was mitigated?
— Richard Ings (@ringsau) January 20, 2019
Barty, backed by a boisterous Australian crowd, staged a stunning turnaround in the biggest match of her career, beating the 2008 champion to reach her first Grand Slam quarterfinal.
After dropping the first set, the 15th seeded Australian registered a thrilling victory, capped with a dramatic final game in front of a packed home crowd.
She became just the fourth Australian female quarter-finalist at Melbourne Park, and the first since Jelena Dokic made a thrilling run to the last eight in 2009.
With Alex de Minaur, Alex Bolt and Alexei Popyrin all falling in third round of the men’s draw, Barty is the sole Australian standing at the Australian Open.
(With AFP Inputs)