14 C.F.R. § 27.619 Special factors.
Title 14 - Aeronautics and Space
(a) The special factors prescribed in §§27.621 through 27.625 apply to each part of the structure whose strength is— (1) Uncertain; (2) Likely to deteriorate in service before normal replacement; or (3) Subject to appreciable variability due to— (i) Uncertainties in manufacturing processes; or (ii) Uncertainties in inspection methods. (b) For each part to which §§27.621 through 27.625 apply, the factor of safety prescribed in §27.303 must be multiplied by a special factor equal to— (1) The applicable special factors prescribed in §§27.621 through 27.625; or (2) Any other factor great enough to ensure that the probability of the part being understrength because of the uncertainties specified in paragraph (a) of this section is extremely remote.
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart D—Design and Construction
General
§ 27.619 Special factors.
