CS 22.619  Special factors

CAA ORS9 Decision No. 1

(a) The factor of safety prescribed in CS 22.303 must be multiplied by appropriate combinations of the special factors prescribed in CS 22.621 through CS 22.625, CS 22.657, CS 22.693 and CS 22.619(b).

(b) For each part of the structure not covered by CS 22.621 through CS 22.625, CS 22.657 and CS 22.693 but whose strength is 

(1) uncertain; 

(2) likely to deteriorate in service before normal replacement; or 

(3) subject to appreciable variability because of uncertainties in manufacturing processes or inspection methods; the special factor must be chosen so that failure of the part due to inadequate strength is improbable.