Skid fabrication - inspection documents for QC

Following the topic, we would like to share you the quality document for small skid.


Inspection check list

  • Procedures and inspection should prepare and included in your hand, NDE procedure, NDE map, welding map and NDE plan also prepared.
  • You should make a content of procedures for control, type of inspection report, below is sample list of procedure.

Document control

  • Too many drawings/ document per each skid, so it should carefully update with latest revision,
  • Line list should be updated and control the piping spool number, all spools to be identified in the test package later.
  • Shop drawing, document submission to be documented revision number, date of submission, date of return, and approval code, etc.

 Inspection report

  • To control and monitor all inspection reports, the assigned coding number should generate before starting issue.

 Welding summary

  • For structural steel
  • For piping

 Material receiving inspection

  • MRIR for piping, bolting, gasket, fitting
  • MRIR for consumable
  • MRIR for structural steel
  • MRIR for electric & instrument
  • Material traceability

 Visual inspection

  • For piping
  • For structure

Dimensional inspection

  • Base frame - structure.
  • Piping spool, loose items.
  • Tie-in point report.

 NDE Reports

  • MT/PT reports
  • RT/UT reports
  • Hardness test, ferrite test (if any)

Coating inspection report

  • Blasting and painting inspection report
  • Pickling and passivation report
  • Holiday test, salt test, dust test, pull of test (if any)

 Testing reportHydrotest & Pneumatic test

  • See hydrotest & pneumatic test procedure, prepare the test package, and update the test package.

 Factory acceptance test

  • Tie-in point report.
  • Bolt tightening report.
  • Leak test for instrument air.
  • Leak test for pipe system.
  • Function test for valve, equipment.

 Packing report

  • Important do not miss during inspection: to check all the packing list, listed out all items installed or mounting on skids, spare part items, loose items, location of packing items, protection, preservation, etc.
  • Record all packing and photos evident should be kept.
  • To make sure all package had been checked and verified by all parties, and signed off in the packing list before moving next stage of the issue "IRN - Inspection Release Note".

 Inspection release note

  • The IRN will be issued by Client or their representative inspector will issue it because the inspection point is Hold Point.
  • This is an evident document for payment and confirmation that had been inspection before shipping. 

Final Manufacturer data book

  • Collect all procedure, instruction used for fabrication and inspection record to the final MDR.
  • MDR Index / content will be confirmed with Client before making.
  • Construction drawings will be made an as-built for reviewing and approval.
  • All outstanding work list should close out or update in the master list for further actions.
  • Guide to make a sample MDR.

 Storage and submission

  • Retention of document shall follow your quality system, such 3 years or 5 years.
  • Document submit eight hard copy or soft copy or both to your client.
  • Do not submit via email with many files attached in the email, it should combine into a “.ZIP” folder, not compressed “.RAR” file.
  • Submission should use a secured platform such Google One, SharePoint, WeTransfer.

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