{"data":{"id":"us/14-cfr-25.619","jurisdiction":"us","citation":"14 CFR 25.619","heading":"Special factors.","body":"The factor of safety prescribed in § 25.303 must be multiplied by the highest pertinent special factor of safety prescribed in §§ 25.621 through 25.625 for each part of the structure whose strength is—\n(a) Uncertain;\n(b) Likely to deteriorate in service before normal replacement; or\n(c) Subject to appreciable variability because of uncertainties in manufacturing processes or inspection methods.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES","Subpart D—Design and Construction"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"b291975c279a29a46508c1035a7e007dbe5ade8d9b42a123d4b1dc0f3d356e70","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-25.613","next":"us/14-cfr-25.621"},"notice":"GroundRules: Original legal text. Not legal advice."}