LONDON, England (CNN)  -- Four British Coastguard helicopters of the same model as the one that crashed off Canada last week have been grounded in Scotland to replace a gearbox mounting part, and all those models worldwide are expected to be grounded as well.



Sikorsky's Web site says the S-92 "is the most advanced aircraft"  in its civil product line.



This move comes after the Transportation Safety Board of Canada indicated on Friday that the components must be replaced on Sikorsky-92 A helicopters across the globe.



The Canadian agency said the U.S. Federal Aviation Administration will issue an emergency airworthiness directive, effectively grounding all Sikorsky S-92 A helicopters worldwide until the parts are replaced.



On March 12, 17 people died when a Sikorsky S-92 A operated by Cougar Helicopters crashed or ditched in the Atlantic Ocean off the coast of Newfoundland. One person survived.



Canada's transportation board on Friday said investigators found a broken main gearbox component that had been addressed in a January alert from Sikorsky.



Sikorsky's alert, on January 28, said the "main gearbox filter bowl assembly mounting titanium studs should be replaced with steel mounting studs." This "one-time modification" was to be done within 1,250 flight hours or within a year of the alert's issue date.



According to Britain's Maritime and Coastguard Agency, Sikorsky on Friday notified helicopter contractor CHC that aircraft operating out of Stornoway and Shetland in Scotland need the "urgent modification."



The British agency said that when it is clear how long the helicopters will be grounded or need to undergo engineering work, the agency "will take a decision on implementing a contingency plan for longer term air coverage. The aircraft on the south coast are unaffected."
What did Canadian authorities warn against the Sikorsky-92 A helicopters? Where did the Sikorsky-92 A crash? What organization will issue an emergency directive for repair? Who issued emergency directive ordering repair? Sikorsky-92 A helicopters need what part replaced? Who issued the emergency directive ordering repair? How many people died in helicopter crash? A crash off Newfoundland  left how many people dead? what part of helicopter needs to be replaced?
emergency airworthiness directive, in the Atlantic Ocean off the coast of Newfoundland. U.S. Federal Aviation Administration the U.S. Federal Aviation Administration gearbox mounting U.S. Federal Aviation Administration 17 17 gearbox mounting
question: What did Canadian authorities warn against the Sikorsky-92 A helicopters?, answer: emergency airworthiness directive, | question: Where did the Sikorsky-92 A crash?, answer: in the Atlantic Ocean off the coast of Newfoundland. | question: What organization will issue an emergency directive for repair?, answer: U.S. Federal Aviation Administration | question: Who issued emergency directive ordering repair?, answer: the U.S. Federal Aviation Administration | question: Sikorsky-92 A helicopters need what part replaced?, answer: gearbox mounting | question: Who issued the emergency directive ordering repair?, answer: U.S. Federal Aviation Administration | question: How many people died in helicopter crash?, answer: 17 | question: A crash off Newfoundland  left how many people dead?, answer: 17 | question: what part of helicopter needs to be replaced?, answer: gearbox mounting