Document ID: chunk:federal_register_of_legislation:F2016L01941:body:0:p2
Version: federal_register_of_legislation:F2016L01941
Segment Type: other
Provision Reference: 
Character Range: 2797–6060

Compressed Gas Cylinders (1972), 49 CFR §180.209 and 180.213(c) (2) refer).
                     (f) A hydrostatic proof test can be performed as an alternative to a hydrostatic stretch test, but only where permitted by a particular cylinder specification.

                   2. Inspect and test the valve and/or the regulator in accordance with the manufacturer's specifications. If no manufacturer's specification are available then the valve must be inspected in accordance with paragraph 10.2.2 of AS2337.1-2004, as in force from time to time.

                   3. Retire cylinder from service.

                   4. Cylinders which do not comply with their scheduled inspection limits or test requirements must be rendered unfit for further use in accordance with AS2030, as in force from time to time.
Compliance:        1. Unless it can be positively established and certified when the last hydrostatic test was carried out and is again due, emptying and testing should be carried out within 1 year after 31 August 1986 and thereafter at intervals not exceeding 5 years except for:

                     (a) 3HT cylinders, which must be tested at intervals not exceeding 3 years, and

                     (b) DOT-E type cylinders, which must be tested in accordance with the DOT Special Permit, as in force from time to time, or 3 years.

                   2. In accordance with the manufacturer's requirements or at the same time as the cylinder inspection whichever is the lesser.

                   3. In accordance with whichever of the following occurs first:

                     (a) the manufacturer's specification,

                     (b) for 3HT cylinders:

                        (i) 4 380 pressurisations (cycles), or

                        (ii) 24 years from date of manufacture; or

                     (c) HOLASW 1** cylinders:

                        (i) 5 000 pressurisations (cycles), or

                        (ii) 25 years from date of manufacture.

                     (d) for fibrewrapped cylinders:

                        (i) the limit specified in the applicable DOT-Exemption, as in force from time to time, or

                        (ii) 15 years from the date of manufacture.

                   4. Immediately.
                Note 1:  Not all specifications include a retirement requirement.

                Note 2:  From the effective date of this amendment, and where the number of pressurisation cycles prior to this amendment have not been recorded, or cannot be substantiated, and where a cylinder is, or has been:

                     (a) installed only for emergency purposes, it is to be assumed to have consumed 1 cycle every 2 days since date of manufacture; or

                     (b) installed or used for the normal provision of supplementary oxygen above an altitude, or cabin altitude of 10 000 feet, it is to be assumed to have consumed 1 cycle each day since the date of manufacture.

                Note 3:  A reference in this AD to a document being in force from time to time, is a reference only to the latest / current version of the document.
                This AD commences on 6 January 2017.
Background:     Amendment 7 recognised the cycle life limit