How to keep projects on schedule while generating usable CQV documentation
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) are two of the most powerful levers for staying on‑schedule during pharma facility builds, automation upgrades, and equipment installations. When used correctly, FAT/SAT can eliminate weeks of rework and compress qualification timelines. When used poorly, teams arrive at IQ/OQ with major readiness gaps, missing evidence, and equipment that still needs troubleshooting.
PSC Biotech® supports Commissioning, Qualification, and Validation (CQV) across the full lifecycle of facilities, utilities, equipment, and computerized/automated systems — including FAT/SAT activities that feed directly into qualification deliverables.
Below is a simple, practical strategy for integrating engineering testing with qualification evidence to reduce delays and avoid common project pitfalls.
1. Why FAT/SAT Matters for Automated Systems
Automated systems such as skids, isolators, PLC/SCADA-controlled units, HVAC controls, and EMS/BMS subsystems should be tested and confirmed before they reach the site. Waiting until qualification is too late. Poor alignment and lack of a clear FAT/SAT approach are common reasons projects fall behind schedule. Guidance from industry sources shows that readiness gaps typically come from:
- Limited early testing, where functions are not fully debugged prior to shipment
- Heavy reliance on vendor documentation without confirming performance under site-specific conditions
- Commissioning activities that are incomplete or not done before starting qualification
Proper FAT/SAT reduces these risks and positions teams for efficient IQ/OQ execution.
2. A Simple, Timeline‑Focused FAT Strategy (Vendor Facility)
PSC Biotech® supports structured commissioning and pre‑operational verification activities that can be leveraged during FAT to reduce qualification work later.
Step 1 — Align on Intended Use & Critical Functions
Before FAT begins, confirm:
- User Requirements (URS)
- Critical process functions
- Automation logic, alarms, interlocks
- Data, reporting, and Part 11–relevant features
This prevents scope disputes later.
Step 2 — Make FAT an Engineering Debug Phase
FAT should resolve:
- PLC/HMI logic issues
- Alarm handling
- Equipment motion/control sequencing
- Interlocks and safety functions
- Setpoints and ranges
- Batch reporting and data outputs
This avoids discovering basic failures during IQ/OQ.
Step 3 — Capture FAT Outputs as Qualification Inputs
PSC provides validation documents and evidence that demonstrate fitness for intended use. FAT evidence can support IQ/OQ readiness when appropriately mapped.
Examples of FAT outputs that become qualification inputs:
- As-built design documentation
- Instrument lists & calibration certificates
- Logic diagrams, HMI screenshots
- Functional test results for alarms/interlocks
- Communication/interface verification
Saving this evidence reduces IQ/OQ duration significantly.
Step 4 — Freeze Configurations After FAT
Lock versions for:
- PLC logic
- SCADA/HMI builds
- Firmware
- Network configurations
This ensures what passes FAT is what arrives onsite.
3. A Practical SAT Strategy (Onsite Startup)
PSC’s engineering team supports commissioning & startup to confirm systems operate per design before qualification.
Step 1 — Verify Installation Conditions
This supports IQ readiness.
Check:
- Utilities
- Connections
- Network/IO mapping
- Environmental conditions
- Labeling and system identification
Step 2 — Re-Run Critical FAT Tests in the Real Environment
SAT focuses on:
- Integration with BMS/EMS
- Connection to plant utilities
- Data flows to historians or MES
- Safety interlocks at full scale
- Performance under real loads
This ensures no surprises during qualification.
Step 3 — Document Commissioning Results
PSC leverages commissioning activities to support IQ/OQ planning and reduce redundant testing.
Useful SAT evidence for qualification:
- Startup checklists
- Calibration verifications
- Updated system drawings
- Alarm & interlock results
- Functional tests confirming field wiring and device behavior
4. Integrating FAT/SAT With IQ/OQ
PSC Biotech® delivers risk‑based qualification services that seamlessly absorb FAT/SAT results into formal testing.
Here’s the simplified mapping:
| FAT / SAT Activity | Becomes IQ Evidence? | Becomes OQ Evidence? |
| Equipment installation verification | ✔ Yes | – |
| As-built documentation | ✔ Yes | – |
| Instrument calibration | ✔ Yes | – |
| Alarm & interlock testing | – | ✔ Yes |
| Functional sequence testing | – | ✔ Yes |
| Safety & fail-safe testing | – | ✔ Yes |
| Data/report generation verification | – | ✔ Yes |
| Communication/integration tests | ✔ Yes | ✔ Yes |
The goal is simple: avoid repeating tests unless risk truly requires it.
PSC’s risk-based CQV approach allows focusing only on what’s needed to demonstrate fitness for intended use.
5. Keeping the Project on Schedule (Key Principles)
- Start FAT early and treat it as debugging — not compliance documentation.
- Bring validation in early — PSC bridges engineering + QA to align testing and evidence.
- Freeze versions before shipment — avoid re-qualifying new builds onsite.
- Use risk-based mapping — leverage commissioning evidence where appropriate.
- Keep documentation clean and traceable — PSC provides structured validation documentation ready for inspection.
Summary
Good FAT/SAT = fast qualification.
To stay on schedule during automated equipment deployments:
- Use FAT to debug and finalize functionality
- Use SAT to verify installation + real-environment performance
- Convert engineering tests into qualification evidence
- Apply risk-based IQ/OQ
- Keep documentation tight, accurate, and version-controlled
PSC Biotech®’s CQV, engineering, and QA services make it easier to integrate FAT/SAT with qualification, so equipment is ready on day one and not weeks later.
About PSC Biotech®
Founded in 1996, PSC Biotech® has spent more than three decades providing life sciences with essential services to ensure that healthcare products are developed, manufactured, and distributed to the highest standards in compliance with all applicable regulatory requirements. Our goal is to skyrocket our clients’ success. To achieve this, our method is straightforward; we put the client’s needs first. We attain top-tier expertise for each project stage, from generating comprehensive project plans to reaching extensive production operations into attentive asset management, authenticity, and non-expendable ventures. Since our inception, PSC Biotech® has served as a strategic partner to emerging and established life science companies, all to help bring their life-saving products to market. PSC Biotech® operates in 52 countries globally and has served thousands of clients. Employing a global team of skilled professionals and experts that span strategically located offices in North America, Europe, Asia, Australia, and the Middle East, we are proud of the roles we have fulfilled to help our clients achieve success.
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