Engines / Cx Spine
Commissioning, without the chaos
The chain of custody that survives an audit.
Fifty-four pods. Three halls. One commissioning record — from L1 tagging on day one to L6 sign-off at handover. Every witness test, every calibration, every independent CxA observation, on a single immutable chain. Donnelly signs. Phoenix trusts. Marauder delivers.
Donnelly signs. Phoenix trusts. Marauder delivers.
The Cx Spine is the single record for every commissioning event on the programme — from component tagging to live-load testing. Independent. Immutable. Accessible to the client from day one.
Eight capabilities · one chain of custody
Every commissioning event. Sequenced, witnessed, signed.
L1–L6 tagging spine
Every component tagged at installation (L1), through functional check (L2–L3), subsystem integration (L4), system integration (L5), to live-load and handover (L6). The tag is the chain — each level locks when the previous is signed.
Witness testing
Witness tests booked against the programme calendar. Invitations sent to the relevant parties. Outcomes recorded on the device at the point of test. No post-test paperwork. No retrospective amendments without a named, timestamped explanation.
Primary injection
HV and LV injection test sequences — scripted, recorded, and signed by the authorised person. Results linked to the relevant asset tag. The injection record is part of the handover chain, not a separate binder.
Test scripts & sequences
Commissioning test scripts approved before use, versioned on amendment, and linked to the activity they cover. No operative working from a superseded test script. No ambiguity about which revision was used on which day.
Live test data
Instrument readings, pass/fail results, and tolerances recorded live at the point of test — not transcribed from paper the following morning. The data is the record. There is no parallel paper trail.
Operational restrictions
Systems under test, partial energisation limits, and access restrictions — published to all relevant parties in real time. No operative entering a commissioned bay without seeing the current restriction status.
Calibration vault
Every instrument used in commissioning — with its calibration certificate, expiry date, and next calibration date. The single source of truth. No instrument with a lapsed certificate used on a witness test without a named person overriding and recording the exception.
Independent CxA reporting
Donnelly · Sentinel sit outside Marauder. Their observations, NCRs, witness signatures, and L4 certificates are on the Cx Spine under their own authority — not mediated by the contractor. Phoenix has read access from day one.
Why independence matters
Donnelly is not Marauder. The record is not the contractor's to edit.
On most projects, commissioning authority reports pass through the contractor before reaching the client. By the time they arrive, they are summaries — and the original test data is in a folder somewhere on the PC that belonged to the engineer who has since left.
On Cranebank, Donnelly · Sentinel write directly to the Cx Spine under their own credentials. Their records are immutable from the moment of entry. Marauder cannot amend them. Marauder can see them and respond to them through the NCR workflow — but the original observation is sealed.
Phoenix Digital has read access to the independent CxA record from the day the Cx Spine goes live. Krupa does not receive a summary at handover. She watches the commissioning in real time — pod by pod, L-level by L-level, witness by witness. When the handover certificate arrives, she has already seen the evidence behind it.