Can existing pipelines that have experienced a failure indicative of materials concerns qualify for the use of a higher alternative MAOP?
49 CFR 192.620 (b)(6) requires the performance of a root cause analysis, including metallurgical examination of the failed pipe, to determine if a previous operational failure is indicative of a systemic problem and precludes use of a higher alternative MAOP if a failure is determined to be systematic in nature. Results of the analysis must be reported to PHMSA Regional Office, or applicable state regulatory authorities, where the pipeline is in service) at least 60 days prior to operation at the higher alternate MAOP.
49 CFR 192.620 (b)(6) requires the performance of a root cause analysis, including metallurgical examination of the failed pipe, to determine if a previous operational failure is indicative of a systemic problem and precludes use of a higher alternative MAOP if a failure is determined to be systematic in nature. Results of the analysis must be reported to PHMSA Regional Office, or applicable state regulatory authorities, where the pipeline is in service at least 60 days prior to operation at the higher alternate MAOP.
