Or alternatively Sid,
The next recorded warning was rotor rpm signifying an Nr of less than 97%. This
warning cleared, returned, cleared again and then returned and remained active
Engine 2 stops - N1 tops -> NR droops <97% RRPM ->
1st NR Warning (OEI HIGH event recorded in the FADEC) Low NR OEI would imply topping?
Collective lowered NR recovers
Engine 1 stops - NR decays < 97% RRPM
2nd NR Warning
Collective lowered NR recovers
Low NR - ?????
3rd NR Warning
Low NR snapshot captured due to BAT DISCH
Low NR snapshot captured due to AP A.TRIM
Although the report differs apparently implying that Low NR was not experienced until the second engine failure but I cannot find where that is substantiated.
After the second engine had flamed out, the rotor rpm warning caption
illuminated, accompanied by its aural tone. This indicated that the speed of the
rotor had decreased below 97%. This warning then extinguished, re‑illuminated
and extinguished again. It finally re-illuminated and stayed on for the remainder
of the flight, as the helicopter descended.