{"data":{"id":"us/14-cfr-27.687","jurisdiction":"us","citation":"14 CFR 27.687","heading":"Spring devices.","body":"(a) Each control system spring device whose failure could cause flutter or other unsafe characteristics must be reliable.\n(b) Compliance with paragraph (a) of this section must be shown by tests simulating service conditions.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT","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":"9289a1f1994db3f6e4bd3723fa2324c1d38e1b7b17330c2e9ff07f37ed86ed32","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-27.685","next":"us/14-cfr-27.691"},"notice":"GroundRules: Original legal text. Not legal advice."}