Maintenance of Oxygen/acetylene pressure regulators

1. Yearly all regulators, flashback arrestors and connections must be inspected, working condition checked and checks recorded in respective checklist/logbook/PMS system.
2. 5-yearly all regulators and flashback arrestors must be replaced with certified new ones and record of replacement maintained.

Note that with VIQ7 in force, SIRE inspectors positively check the availability of above-mentioned maintenance records and will record an observation if crew unable to show evidence of checks/replacement.