note the unburnt grass and that the fuel tanks had ruptured on impact (no further risk of sudden fireball).
If you could recognise the nav computer that may (and did!) store invaluable data, and you didn't know any better, why not switch it off just to make sure data was not saved?
I have difficulty following your logic. If I have understood previous posts correctly about sooting patterns indicating the switch was off before fire took hold, then surely the Seal risked life and limb to check the switch was off, not switch it off?
Just so I’m clear, this isn’t the same box the Seal risked his life to retrieve and take away with him?