Most FDA inspection failures are not technical. The deficiencies get written up, sure. But what turns a manageable inspection into a Warning Letter situation is almost always behavioral.
I spent 14 years as an FDA Investigator. I walked into hundreds of facilities. I wrote the 483s. I filed the Establishment Inspection Reports that determined whether a company got a routine follow-up or an OAI classification.
What I can tell you is this: Investigators arrive at your facility having already read your history. They know your prior 483 observations, your Warning Letters, your commitments to the Agency. What they do not yet know is how your team will behave over the next several days.
That behavior shapes everything that follows.
The Five Offenses
There are five specific behaviors that reliably escalate inspections from routine to adversarial. None of them are technical. All of them are avoidable. And every one of them sends the same signal to a trained Investigator.
The signal is: this company is managing perception rather than demonstrating compliance.
When an Investigator picks up that signal, they dig. And when they dig, they find things.
What these five behaviors have in common is that they tell an Investigator, with considerable precision, exactly where to look. The harder a company works to steer, delay, or deflect, the more certain the Investigator becomes that steering, delay, and deflection are necessary.
I have seen all five of these behaviors in facilities that had perfectly adequate quality systems on paper. The paper did not save them.
Why This Matters More Than Your SOP Manual
Standard inspection preparation focuses on documents. Procedures. Batch records. CAPA closure rates. Training logs.
None of that preparation addresses what actually determines whether an Investigator leaves your facility with a short list of minor observations or a narrative that reads like a systemic breakdown.
The companies that consistently navigate FDA inspections well are not always the most technically compliant. They are the ones whose teams understand how the inspection dynamic actually works — and behave accordingly from the moment an Investigator presents credentials at the front desk.
That understanding is not in your SOP manual. It is not covered in standard GMP training. It comes from having been on the other side of the table.
The Full Article Is in The Investigator’s Lens
All five offenses — with the specific Investigator response each one triggers and exactly what your team should do instead — are in the paid edition of The Investigator’s Lens.
Written by a former FDA Investigator who has watched every version of these mistakes play out in real inspections. Not a compliance consultant’s interpretation. The actual experience, from the inside.
Read the full article here: https://devaughnedwards.substack.com/p/how-to-piss-off-an-fda-investigator?r=7sflcx
DeVaughn Edwards is a former FDA Investigator with 14 years of field experience, a pharmaceutical quality executive with 13 years of hands-on compliance leadership, and the founder of FD-AID LLC. He conducts mock FDA inspections and inspection readiness engagements for pharmaceutical manufacturers, CDMOs, and biologics facilities.
Contact: devaughn@fdaid.org | fdaid.org | 732-895-7831
FD-AID | FDA Inspection Readiness | Former FDA Investigator 