ncr summary l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
NCR Summary PowerPoint Presentation
Download Presentation
NCR Summary

Loading in 2 Seconds...

play fullscreen
1 / 5

NCR Summary - PowerPoint PPT Presentation


  • 233 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
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
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
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
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
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.