The UK government department that normally investigates traditional aircraft accidents will work with its US equivalent to investigate why the 747 rocket launch failed.
The Yeti Airlines aircraft was carrying 68 passengers and four crew members when it went down near a hillside in Pokhara.
It comes after the airline received its crucial licence to fly from CASA on Thursday, ending a six-month wait from its original target to begin operations in the middle of last year.
The news will enhance support for the beleaguered aircraft after Labor last year highlighted its inability to land on battlefields as an example of mismanagement of Defence projects.
While the number of seats for sale, or capacity, was down from 6,830,000 to 5,806,000 before and after COVID, the percentage of seats filled, or load factors, remained at a near-record high of 85 per cent.
CEO Tim Jordan called the announcement it had gained the crucial Air Operators Certificate a "historic moment for Australian aviation".