Primavera P6 & Controls
Mastering Primavera P6 Delay Analysis: How to Prepare an EOT Claim under FIDIC Clause 8.4
Mr. Hemant PatilFounder & CEO, Apaha Global
A forensic breakdown of Time Impact Analysis (TIA), critical path float degradation, and substantiating compensable delay claims on multi-million dollar GCC highrises.
In the fast-paced construction landscape of Dubai, Riyadh, and Doha, schedule delays are rarely a question of 'if' — they are an inevitable operational reality. However, the difference between a multi-million dollar contractor penalty and a fully granted Extension of Time (EOT) lies entirely in the forensic precision of your Primavera P6 schedule.
Under FIDIC Red Book (1999) Clause 8.4, the contractor is entitled to an extension of time if completion is delayed by employer-caused impediments, exceptionally adverse climatic conditions, or unforeseeable shortages in personnel. Yet over 70% of contractor EOT claims are rejected outright by supervising consultants due to a lack of contemporaneous baseline records.
To succeed, planning engineers must master the Time Impact Analysis (TIA) technique: creating an un-impacted contemporaneous schedule fragment (fragnet), inserting delay events chronologically into the updated Primavera P6 schedule, and recalculating the total float to isolate the net critical path impact.
From insight to action
Executive takeaways
for engineers.
- 01Always preserve monthly contemporaneous Primavera P6 XER backups before modifying logic.
- 02Submit contractual notice of delay within 28 days as strictly mandated by FIDIC Clause 20.1.
- 03Isolate concurrent delays: contractor culpable delays vs. employer compensable disruptions.
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