DATUMKEEP
8DLive

Eight disciplines that won’t close on a hunch.

A full 8D tracker where the quality gate actively reopens any discipline that lacks evidence — so a report can’t advance until the work behind it is real.

DatumKeep · 8D Report · 8D-AE-0231NCR-5567D5 reopened
8D REPORT
Hi-Lok collar — under-torque retention
Customer
OEM wing-assembly program
Part
Ti Hi-Lok collar · HLK-6Ti-08
Lot
LT-Ti-2291 · 5,000 pcs
1.7%
BELOW MIN BREAKAWAY 35 IN-LB
86
SUSPECT PCS PULLED · CONTAINED
D5 reopened by quality gate — corrective action lacks verification evidence; cannot advance to D6.
Eight disciplines
D1Team complete
QE M.R. · Mfg J.K. · SQE (customer rep)
D2Problem complete
Collar fails min breakaway on automated torque audit
D3Containment complete
Lot quarantined · 100% sort · 86 suspect pcs pulled · customer stock purge
D4Root Cause complete
Thread-roll die wear beyond 12k-cycle limit → shallow thread form
D5Permanent Corrective Action in-rework
Die-change interval 12k→8k cycles · SPC on thread depth
D6Implement & Validate locked
Awaits D5 verification evidence
D7Prevent Recurrence locked
Update control plan & PFMEA across die family
D8Closure & Recognition locked
Customer sign-off & team close-out
Problem → Cause → Solution
ProblemUnder-torque retention
CauseThread-roll die wear
SolutionTightened die-change interval + SPC
8D 8D-AE-0231 · aerospace fastener supplier · the quality gate reopens disciplines that lack evidence · illustrative data
The behaviour that matters

Rigour, enforced — not assumed.

8D is only as strong as its weakest discipline. DatumKeep makes that weakness visible and blocking, not buried.

Every discipline, one view

D1 through D8 with live status — complete, in-rework, or locked — so the whole team sees exactly where the report really stands.

Quality gate reopens weak steps

If D5 has no verification evidence, it reopens and D6–D8 stay locked. No advancing past unproven work.

Problem → Cause → Solution

Every 8D resolves into the same canonical structure — so its lessons are reusable by the next investigation, in any method.

Make the next failure the last one.

Turn the knowledge your organization already generates into a compounding asset — starting with your first analysis.