British Airways 5390
Printed page 16. PDF page 23.
high residual torque occurred after the set value had been achieved (ie 20 lbf in) and did not affect the torque at which the screwdriver operated. The residual torque would not have been felt before the set torque was reached.Open official document at PDF page 23Aircraft Accident Report 1/92: BAC One-Eleven G-BJRT, 10 June 1990