Ncr summary
Download
1 / 5

NCR Summary - PowerPoint PPT Presentation


  • 232 Views
  • Uploaded on

NCR Summary. 8 NCRs were generated during TMCM preproduction NCR #00029, CLOSED Re-qualification of Omnetics connector is required based on process and design revision. NCR #00041, OPEN- Cause and Corrective Action submitted

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'NCR Summary' - lotus


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Ncr summary l.jpg
NCR Summary

  • 8 NCRs were generated during TMCM preproduction

  • NCR #00029, CLOSED

    • Re-qualification of Omnetics connector is required based on process and design revision.

  • NCR #00041, OPEN- Cause and Corrective Action submitted

    • Finish machining dimensions did not meet dimension specified on drawing.

    • Configuration management process was not adhered to, released drawing was not revised and re-released to reflect correct dimensions.

    • Tracker meeting held to review drawing release & configuration management process.

    • Drawing was updated with correct finish machine dimensions and released. PWBs were re-inspected per released design.


Ncr summary2 l.jpg
NCR Summary

  • NCR #00042, OPEN- Cause and Corrective Action submitted

    • One PWB dispositioned “scrap” for exposed copper

    • One PWB dispositioned “scrap” for foreign material/stain

    • Qty 9 TMCMs RTV for re-label of Serial No. Traceability maintained, Re-inspection will be performed.

  • NCR #00043, OPEN- Cause and Corrective Action submitted

    • Omnetics connector saver is being redesigned;

      1) Jack screw too long.

      2) Gap under jack screw introducing stress and bond of plastic body to alum. shell fails.

      3) Low shear strength of bond line.

    • Redesign complete, NCR will remain open until redesign verified.


Ncr summary3 l.jpg
NCR Summary

  • NCR #00044, OPEN- Cause and Corrective Action submitted

    • GSFC rejected dielectric thickness per IPC-6011, Class 3

    • Configuration management was not adhered to. TMCMs were built to unreleased rev. 6.

    • Tracker Meeting held to review configuration management process.

    • Design released, parts meets dielectric requirement.

  • NCR #00046, CLOSED

    • Teledyne reported SN 176 to have physical damage to Pitch Adaptor traces. Unit passed Final Electrical Test.

    • Disposition preproduction unit “use-as-is”. Teledyne reviewed handling procedures to preclude recurrence.


Ncr summary4 l.jpg
NCR Summary

  • NCR #00048, CLOSED

    • GSFC rejected panel #152 coupon test for internal annular rings shorter that 0.002 inches.

    • Audit performed on all 00077 PWBs in bldg. 33.

    • 152-2 & 152-4 scrapped.

    • 152-1, 152-3, 152-5 were utilized in non-flight preproduction MCMs. These MCMs are marked non-flight, introduction into flight stream is not possible.

  • NCR #00050, CLOSED

    • GSFC rejected panel #158 coupon test for internal annular rings shorter that 0.002 inches.

    • All nonconforming PWBs (qty 4) located and quarantined in Bldg. 33 MRB cabinet.


Preproduction waivers l.jpg
Preproduction Waivers

  • Waivers were requested and granted during TMCM preproduction for the following:

    • Source inspection not performed

      • Source Inspector hired

    • Reject compound wire bond per MIL-STD-883

      • Test in process to translate original wire bond on die off -center to allow room for re-bond if required.

    • Second application of encapsulation to cover exposed wire bonds near ends of TMCM.

      • Standard rework instructions developed

    • Wire bond over disturbed metal

      • Test in process to translate original wire bond on die off -center to allow room for re-bond if required.


ad