On January 1:st 1992 new regulations from the Swedish Civil Aviation Administration prohibited single engined helicopters in EMS operations during the dark hours of the day. At that time the helicopter operator Norrlandsflyg AB was currently responsible for the ambulance helicopter activity in Norrbottens County. A few months earlier the Gällivare based company had purchased a twin engined AS 355 F2 (SE-JET), just to be able to continue with their EMS activity despite the new regulations. The AS 355 was a temporary solution while searching for a larger and more suitable helicopter to put in service. Norrlandsflyg also operated a single-engined SA.360C Dauphin (SE-HLS) in the area, so they were used to having quite a lot of space in the aircraft.
Both Norrlandsflygs owner, Knut "Knutte" Hedström, and later Norrlandsflygs flight operations manager Michael Åkerlund went to the US to take a closer look at the different EMS helicopters available in the business. They decided on the largest and most advanced helicopter type they found, the Sikorsky S-76. It was the Rolls Royce among the EMS helicopters and they decided that this helicopter type would become the future EMS machine for Norrlandsflyg.
In mid-1993 Norrlandsflygs first Sikorsky S-76A (SE-JEZ) arrived in Sweden, followed by her blue sister (SE-JES) the year after. To purchase such a large and expensive helicopter was a huge investment for Norrlandsflyg, but it proved to pay off.

When Norrlandsflyg purchased SE-JEZ it was currently operating in USA. Norrlandsflyg gave the American company Keystone Helicopter Corporation the task to paint and modify the helicopter for EMS purposes. SE-JEZ was painted red, and her sister (SE-JES) was painted blue. Keystone registered the helicopter N72WW for a couple of days, prior to sending it to Sweden. The helicopter was registered SE-JEZ on 19 July 1993.

SE-JEZ soon replaced the AS 355 as ambulance helicopter in Norrbottens County. It was in service as ordinary EMS helicopter in Norrbotten between 1993 and 1999, when it got replaced by its sister. The “retired” SE-JEZ became a backup helicopter for Norrlandsflygs EMS activities in Norrbotten and Uppsala. On 3 April 1999 SE-JES was damaged in an accident during an EMS mission close to Torneträsk (resulting in only minor injuries to the persons onboard). SE-JEZ had to enter service as EMS helicopter in Norrbotten once again.

A new S-76A (SE-JUS) was purchased, and entered service in Norrbotten in December 1999. SE-JEZ has been a backup helicopter for Norrlandsflygs activities ever since. Each time one of Norrlandsflygs EMS helicopters need to go to the main base in Gällivare for the annual maintenance SE-JEZ went to the location to make sure that the activity remained operational. SE-JEZ (also known as "Bettan") served as Norrlandsflygs “spider in the web”.

The company moved its maintenance base to Gothenburg, and JUZ came to follow. It continued its backup duty, but was eventually replaced by the retired Gothenburg EMS helicopter SE-JUC (and the retired Gällivare helicopter SE-JUS).

On 1 November 2011 the Swedish Maritime Administration acquired all the stocks in Norrlandsflyg's parent company Scandinavian Helicopter Invest (SHI). The new helicopter division was named SMA Helicopter Rescue, which became a
subsidiary to Sjöfartsverket Holding (administered by the Swedish Maritime Administration). All the SAR helicopters were included in the deal. The purchase also involved SE-JUC and SE-JEZ. At this time JEZ had been grounded for a long period of time.