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Decision Review Live — 14th April 2026 | 18:00 UK
This session we're reviewing a live burner management system SIL scenario brought by Tomasz Barnert CFSE PhD. The scenario: a protection system with multiple SIFs protecting a furnace. The vendor is claiming SIL 2. Several genuinely contested questions around independence, compound SIF analysis, and LOPA conservatism. Tomasz has three specific questions for the group — and a third point of view he's been holding back for the session. No slides. No lecture. Bring your read on it. Premium members only. Link below.
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Founding Member Pricing — Limited Spots 2 Remaining
Founding member pricing is still available. When the last 2 spots are gone, Premium moves to $59/month. I won't announce it — it will just change. What Premium includes: ✅ Decision Review Live — bring a real scenario from a live project. Peer review, not a lecture. First session 14th April 2026, 18:00 UK time. ✅ Weekly Discussion — one question, open conversation between working engineers. Fridays 10:00 UK time. ✅ Full template library — FSMS, proof test procedures, SRS, competency assessment, MoC register, project safety plan, LOPA procedure. All aligned to IEC 61508 and IEC 61511. ✅ Nuclear guidance notes — technical comparison of process industry vs nuclear practice across eight areas. Based on ONR Technical Assessment Guides. ✅ SILVerify access — IEC 61508/61511 three-barrier SIL verification with automatic Word report generation. $30/month. 2 founding spots remaining. "This is so helpful in so many ways. Never seen anything quite like it before — good access to material and real live engineers." — Anth Gunn, I&C and Functional Safety Engineer. [Upgrade to Premium →]
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Welcome to the Functional Safety Playbook 🎯
Glad you're here. This is a community for functional safety engineers who are tired of making hard project decisions alone. The grey areas in IEC 61508 and IEC 61511 rarely come with clear answers — just pressure. This is where we work through those problems together. What to do first: Head to the Classroom and start with the Case Studies — real engineering scenarios from live projects with the decision reasoning explained. Then browse the community feed and jump into any discussion that's relevant to what you're working on. If you have a live project question, post it under the Functional Safety Question tag. Someone here has dealt with it. One thing before you go: Drop a comment below and tell us: - Where you're based - What sector you work in - One challenge you're currently navigating Looking forward to getting to know you. — Richie
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FSA Reports - Lessons Learned & Critical SIS Findings in Oil & Gas Projects!
1. Based on your experience with FSA Stage 1 to 5 in EPC Oil & Gas projects, what are the most critical anomalies or non-conformities usually identified onsite compared to approved documents such as SRS, Cause & Effect, FAT, and SAT? 2. From your lessons learned, what are the most frequent issues encountered during FSAs: - poor SIS bypass management, - overdue proof testing, - DCS/SIS integration gaps, - incomplete MOC process, - or field vs As-Built discrepancies?
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IPL Management
Hi All, Just read an interesting article on the recent introduction of an ISA standard which provides guidance on the management of Independent Protection Layers - Low Integrity Protection Layers: ANSI/ISA-84.91.03-2025 Explained. This is an interesting subject as IPL's are an essential aspect when working out the target RRF of a SIF, however they are often forgotten about once the plant goes back into operation. Some sites do manage the maintenance of IPL's differently to non-safety loops, via a maintained IPL register, IPL validation and more stringent testing routines. However this is not always the case and a lot of the time IPL's just fall into the normal maintenance system as this article suggests. Would be interesting to hear from the group your thoughts on this subject .....
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Peer decision support for functional safety engineers. Premium: Decision Review Live, SILVerify, FSMS templates + guidance notes. $30 founding price.
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