{"data":{"id":"us/14-cfr-33.64","jurisdiction":"us","citation":"14 CFR 33.64","heading":"Pressurized engine static parts.","body":"(a) Strength. The applicant must establish by test, validated analysis, or a combination of both, that all static parts subject to significant gas or liquid pressure loads for a stabilized period of one minute will not:\n(1) Exhibit permanent distortion beyond serviceable limits or exhibit leakage that could create a hazardous condition when subjected to the greater of the following pressures:\n(i) 1.1 times the maximum working pressure;\n(ii) 1.33 times the normal working pressure; or\n(iii) 35 kPa (5 p.s.i.) above the normal working pressure.\n(2) Exhibit fracture or burst when subjected to the greater of the following pressures:\n(i) 1.15 times the maximum possible pressure;\n(ii) 1.5 times the maximum working pressure; or\n(iii) 35 kPa (5 p.s.i.) above the maximum possible pressure.\n(b) Compliance with this section must take into account:\n(1) The operating temperature of the part;\n(2) Any other significant static loads in addition to pressure loads;\n(3) Minimum properties representative of both the material and the processes used in the construction of the part; and\n(4) Any adverse geometry conditions allowed by the type design.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES","Subpart E—Design and Construction; Turbine Aircraft Engines"],"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":"980733059ddba0c971a3624369b6f142126ea0515ddc5de7dc6c540b5e7e25d1","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-33.63","next":"us/14-cfr-33.65"},"notice":"GroundRules: Original legal text. Not legal advice."}