# First article inspection - 28 R3.1

Sample ID: ______  Date: ______  Inspector: ______  Process/material: ______

Use actual sample measurements; blank entries are not passed checks. Record deviations and supporting photos.

| Inspection | Measurement / observation | Pass / hold | Owner/date |
|---|---|---|---|
| Source CAD/print checksum and sample label match R3.1 | | | |
| Shell mating seam, 78 x 150 x 24 mm nominal core; record actual sizes | | | |
| No cracking, thin-lip loss, warpage or retained support | | | |
| Actual switch body/terminal/travel/force measured (four controls) | | | |
| Each seat/contact/stop thickness recorded including adhesive | | | |
| Released electrical state; center/edge press; free return, shell open and closed | | | |
| No force needed to close shell around PCB/battery/harness | | | |
| U6 top clearance and connector/USB mating clearance measured | | | |
| Screw length/head seating/blind floor and fastening method established | | | |
| Battery compression and lead route checked | | | |
| LED/lens clear fit and powered output recorded | | | |
| Speaker/microphone seals, sound and recording tested | | | |
| Cellular antenna layout, RF and powered thermal tests recorded | | | |
| Colour/texture/metal/elastomer samples approved | | | |
| RPS moldability/shrink/tolerance proposal and batch scope approved | | | |

Approved for next stage: ______  By: ______  Outstanding holds: ______