Mobile Equipment Integrity Assurance Scheme
The Mobile Equipment Integrity Assurance Scheme is maintained and operated by TIS Manufacturing Services Ltd (Aberdeen) and certified by Bureau Veritas. Its purpose is to provide evidence to offshore installation duty holders of the suitability of the Safety Critical Elements contained in TIS supplied mobile equipment. These SCE's shall be used on the duty holders' installations under the requirements of The Offshore Installations and Wells (Design and Construction etc.) Regulations SI 1996/913, Regulation 26.
This Scheme does not cover verification of the hook up and commissioning aspects of mobile equipment. The duty holder's Installation Verification Scheme should cover these aspects.
The scheme has schedules for each Safety Critical Element, detailing their Scope, Requirements, Performance Standards, Failure Modes and Planned Assurance, and Its purpose is to provide evidence to offshore installation duty holders of the suitability of the Safety Critical Elements contained in TIS supplied mobile equipment.
Detailed Inspection
In today's market the need to ensure accuracy of component dimensioning has never been more important. TIS-Manufacturing provides three levels of inspection to service the business & customer expectations: These being:
- Inward Goods Inspection / Dimensional Control
- Annual / Major overhaul Inspection - Pressure Control Equipment
- Final Inspection / release
1 - Inward Goods Inspection :
This type of inspection is based upon receiving goods from TIS-Manufacturing's business partners, the degree of receiving inspection is based upon product criticality combining supplier Quality Performance from statistical data. The products are received at TIS where an initial visual inspection is performed, followed by a documentation and traceability review. Upon a more in-depth inspection the TIS qualified QC Inspector will fully examine the products using calibrated metrology equipment which ranges from dial gauges, Internal / External micrometers, 'Gauge Maker' for threaded products using a Grade 1 granite measurement table. The TIS metrology instrumentation is uniquely identified, maintained and calibrated to the respective british standards by a UKAS 17020 certified laboratory.
2 - Annual / Major Survey - Pressure Control Equipment :
Annual surveys are performed on Pressure control equipment annually to ensure the continuity of service reliability. TIS performs a comprehensive pre-inspection of the equipment on arrival at the service & maintenance department, the inspection is documented on a checklist which is completed by the service technician. The objective of this checklist is to identify any items suffering from degradation, fatigue or to expose any equipment beyond economical repair. Upon a successful survey the equipment would then be pressure tested to verify service integrity prior to final inspection & release to the end client. A copy of the pressure test chart combined with Third Party Certification (Record of Examination) accompanies the serviced product on return to the client.
Major surveys are performed on Pressure control equipment every five (5) years and follows a similar process as the annual survey in terms of documentation. This major survey extends the examination by dis-mantling assemblies into component parts ready for visual, dimensional, NDT & hardness examinations. The integrity of each component is scrutinised in detail to verify that materials are not suffering from stress or any anomalies that would compromise 'Fit Forward Function' of the product. Upon a successful survey the equipment would then be assembled & pressure tested to verify service integrity prior to final inspection & release to the client. A copy of the pressure test chart, thread inspection & NDT report with Third Party Certification (Record of Examination) accompanies the serviced product on return to the client.
3 - Final Inspection & Release :
Within TIS there are many control documents which offer evidence of conformity in meeting client requirements. The company operates a Mechanical Completion Check Records (MCCR) and punch list control form to ensure the clients needs have been met. The final inspection is based upon equipment type and level of control which is defined by the client. The MCCR is completed by both a service technician and the QC inspector who verifies the control measures recorded on the MCCR. Any items which have not been completed on the MCCR are documented on the punch list and have to be completed and verified by the QC Inspector before the MCCR document can be signed off. Once the MCCR is as complete the product is ready for onward distribution to the end client.
