benikigai/ec-1Public

SHA-256 cb59ebfe5eb3a76215bef873f99111c9ace40af32ead92e48ee89024673a2a43

# SYNTHETIC. Same record as in opd.yaml.
id: iss:shoulder-gap
title: Shoulder-button gap opens past 0.30 mm on cavity 2
visibility: embargoed
embargo_until: '2028-06-01'
failure_mode: gap-flush
part_types:
- housing
- button
processes:
- inspect
observed_on:
- pvt
detected_at:
- fqc
conditions: Cavity 2 of the top-shell tool; worse in the first hour after a mould start
yield_impact:
  value: 1.7
  unit: '%'
  source: inferred
  confidence: low
  evidence:
  - src:caliper-run-1
root_cause:
  value: Uneven cooling bows the shoulder wall outward on cavity 2
  source: inferred
  confidence: low
  evidence:
  - src:caliper-run-1
resolutions:
- fix_type: process-change
  description: Raise mould temperature 8 C and extend cooling 2 s on cavity 2
  status: trialled
  operations:
  - op:cosmetic
  yield_before:
    value: 98.3
    unit: '%'
    source: inferred
    confidence: low
  yield_after:
    value: 99.1
    unit: '%'
    source: inferred
    confidence: low
parts:
- part:top-shell
- part:shoulder-button
operations:
- op:cosmetic
pfmea:
- fm:gap-high
tags:
- tooling
- cosmetic