Compliance mapping
A straight, clause-by-clause answer. Tool and equipment control spans more than a single provision, and we want the boundary of what we do — and what we deliberately do not — to be clear before you pilot.
Tool and equipment control runs across several Part-145 provisions: having the right tools available (145.A.40(a)), controlling and calibrating them to an officially recognised standard with records kept (145.A.40(b)), and the AMC expectations around a control register, labelling, and serviceability monitoring. Below is how each maps to what Aviamatic operationalises — and where the responsibility belongs to the authority, your MOE, or an accredited calibration lab, not to us.
We never claim certification, approval, or authority you haven't earned. Where something is “not our role,” it stays with the regulator, your organisation, or your approved data.
| Clause | What it requires | How Aviamatic supports it | Role |
|---|---|---|---|
| 145.A.40(a) | Have available and use the necessary tools and equipment for the approved maintenance scope. Permanently available items must be on hand; infrequently used items may be covered via loan, pool, or contract, documented in the exposition. Use manufacturer-specified tooling, or approved equivalents via an MOE procedure. | Availability for the approved scope: search by tool and equivalent capability, precise location of each serialised item, and equivalents so the right tool is available when needed. | Aviamatic supports |
| 145.A.40(b) | All tools, equipment, and test equipment must be controlled and calibrated to an officially recognised standard at a frequency that ensures serviceability and accuracy, and records of calibrations and traceability to the standard used must be kept. | Calibration control: an expired calibration-controlled tool cannot be issued — including by supervisor override — and the calibration record and traceability to the standard used are kept in one auditable place. | Aviamatic supports |
| AMC 145.A.40(a)/(b) — control register | A control register for precision tooling, plus a record of calibrations and the standards used. The register tracks tools per part number (description, control classification, reference instruction, servicing/calibration intervals) and per serial number (location — workshop, line station, hangar, line maintenance — and status). | Operationalises the control register per serial number: location and status (serviceable / issued / unserviceable / sent for calibration / loaned) across line stations, hangars, and vehicles — the database scenario for multi-location Part-145 organisations. | Aviamatic supports |
| AMC 145.A.40(a)/(b) — labelling | A clear labelling system showing next inspection, servicing, or calibration due date, and unserviceable status. | Condition capture and calibration evidence/certificates in the record; status is tracked separately (serviceable / unserviceable / sent for calibration / loaned), and expired calibration blocks issue at the counter. | Aviamatic supports |
| Tooling control system — serviceability monitoring | A serviceability monitoring system as one of the expected minimum elements of the tooling control system. | Per-serial-number location and status across the approved scope, so serviceability and current custody are visible in real time instead of reconstructed afterward. | Aviamatic supports |
| Tooling control system — incoming inspection | An incoming inspection system as one of the expected minimum elements of the tooling control system. | Captures incoming condition and custody of calibration evidence/certificates; imported records cannot silently overwrite manually validated fields, so the inspection evidence stays attached. | Aviamatic supports |
| 145.A.75 / records | Secure, easily retrievable records relevant to the airworthiness of the tooling control and calibration process. | Append-only audit events (actor, action, time, before/after state) so an auditor's question can be answered in minutes rather than days of reconstructing from screenshots and spreadsheets. | Aviamatic supports |
| Calibration standard — AMC 145.A.40(b), ISO 10012 | Calibration intervals per the manufacturer's recommendations, or ISO 10012 where none; the 'officially recognised standard' is one published by an official body widely recognised as good practice. | Records the required intervals and the calibration evidence, framed around ISO 10012 measurement-management practice — it keeps the evidence, it does not set or certify the standard. | Aviamatic supports |
| Calibration provider — ISO/IEC 17025 | Calibration by laboratories accredited to ISO/IEC 17025 by an ILAC-MRA signatory (or an NMI / OEM per approved data), traceable to national or international standards. Calibration servicing is not a Part-145 privilege; it is a supplier function under the quality system. | Not our role. Aviamatic does not perform calibration or servicing. It records the calibration evidence, certificates, and intervals supplied by your accredited providers. | Not our role |
| 145.A.70(a) MOE procedures (2.4, 2.5, 2.6) | The Maintenance Organisation Exposition must include procedures for acceptance of tools and equipment (2.4), calibration of tools and equipment (2.5), and use of tooling and equipment including alternates (2.6). | Not our role. The MOE and its approved procedures belong to your organisation. Aviamatic records execution evidence that supports those procedures; it does not write or approve them. | Not our role |
| 145.A.65 — quality system | The quality system and maintenance procedures cover the tooling control and calibration process, with independent quality auditing. | Aviamatic keeps the record the quality system audits. Authority and audit findings remain with your organisation and certifying staff. | Not our role |
| Part L2 / L2.1 — line maintenance | Line maintenance control of tools and equipment (L2.1), and pooled and loan parts controls (L2.5). | Tracks tools across line stations and the approved scope so line-maintenance tooling control has a live record; the line-maintenance procedure itself stays with your organisation. | Not our role |
Bottom line
Aviamatic operationalises the control register, serviceability monitoring, and calibration record-keeping that Part-145 expects — and it records the calibration evidence from your ISO/IEC 17025-accredited providers. It does not calibrate, certify, write your MOE, or make airworthiness decisions. Those remain the responsibility of regulators, certifying staff, and your approved data.