So is torque for US planes specified in ft*lbs or N*m?
If ft*lbs, maybe a non-US worker presumed the number was in N*M. 1 ft*lb is a bit over 1.35 N*m, so if 1 ft*lb was specified and they torqued it 1 N*m it wouldn’t be tight enough.
Or in-lb vs ft-lb. Off by a factor of 12.
Hey we crashed into Mars once because of the Imperial / Metric mix-up. (or did we miss Mars by a country mile?)