With its helicopters deployed aboard various ships of the Pakistan Navy, the squadron is assigned with anti-submarine warfare role while also conducting secondary duties ranging from SAR to MEDEVAC.

[1][2][3][4] The squadron was established in 1970 when Pakistan started talks with the UK for two Whitby-class frigates for which Aérospatiale was to provide four SA-316s.

While the deal for the Whitby class frigates was scrapped, Pakistan still went ahead with the acquisition of SA-319s for which 4 pilots were sent to France for training on the chopper.

The helicopters were inducted in the Pakistan Naval Air Arm in 1977 which marked the official raising of the 333 squadron.

In 2017, an Allouettte-III of the squadron undertook a MEDEVAC operation in which a seriously ill Pakistan Navy sailor aboard PNS Tariq was airlifted to USNS Amelia Earhart from where he was shifted to USS Makin Island for further treatment.