Topping
P and A,
I think the 140-2 was the last iteration of commercial T-58's that we saw. And your note does bring to mind that there was some difference in setting up topping on those engines, which in all honesty I can't recall, thus I am sure you are correct. During my time at SA, I had a chance to fly the SH-3A,D,G,H. CH/HH-3C,E. S-61L,N. S-61R, S-67. RH-3A ( minesweeper ). VH-3A,D. HH-3F ( USCG ).
The report didn't say which version were installed in the accident machine, and I am guessing that you are saying they had 140-2's?