Text in force at 23-63: from 23-20, effective 1 Sep 1977.
[(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.] Notice of Airworthiness Review Program No. 2; Notice No. 75-10; Issued on 02/27/75.
42 FR 36969 · Source