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Code · CFR · Title 14 — Aeronautics and Space · Part 25 — Airworthiness Standards: Transport Category Airplanes · § 25.1438

§ 25.1438. Pressurization and pneumatic systems.

91 words·~1 min read·/us/cfr/t14/s§ 25.1438·

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(a)Pressurization system elements must be burst pressure tested to 2.0 times, and proof pressure tested to 1.5 times, the maximum normal operating pressure.
(b)Pneumatic system elements must be burst pressure tested to 3.0 times, and proof pressure tested to 1.5 times, the maximum normal operating pressure.
(c)An analysis, or a combination of analysis and test, may be substituted for any test required by paragraph
(a)or
(b)of this section if the Administrator finds it equivalent to the required test. [Amdt. 25-41, 42 FR 36971, July 18, 1977]
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§ 25.1438
Pressurization and pneumatic systems.
Fed. Reg.×1
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