FAR Ninety-One Point Twenty-Five, the NASA Aviation Safety Reporting System, and the Ten-Day Window That Every Certificate Holder Should Know Before They Need It

FAR 91.25 gives certificate holders a powerful, underused tool: file a voluntary safety report with NASA within ten days of an inadvertent regulatory violation, and the FAA is prohibited from using that report as evidence in a certificate action against you. The program is called the Aviation Safety Reporting System (ASRS), it has operated since 1976, and it has quietly accumulated over two million reports that have shaped some of the most meaningful safety improvements in both general and commercial aviation. Most pilots know it exists. Far fewer understand exactly when and how to use it.

What Does FAR 91.25 Actually Say?

The regulation is short and easy to overlook. In plain terms, it says: the FAA cannot use any report submitted to the ASRS as evidence in a certificate action against the pilot who filed it, provided certain conditions are met.

The foundation is simple. Voluntary safety reports are confidential, and the FAA has removed itself from using them in enforcement proceedings. That protection is the reason the program works - pilots report honestly because they know the report cannot be turned against them.

Why Is ASRS Administered by NASA, Not the FAA?

The separation is intentional and structurally important. NASA administers the program on behalf of the FAA specifically because NASA is not a regulatory body. NASA cannot fine you, suspend your certificate, or take enforcement action of any kind.

When you submit a report, NASA strips your name and all identifying information before the data enters the database. They mail you a postcard confirming receipt, which includes an identification number. That postcard is the only record connecting you to the submission. The database itself holds only de-identified content: what happened, contributing factors, and analysis. The FAA does not see who filed, and the program architecture prevents them from doing so.

That de-identified data has driven real changes: updated ATC phraseology, revised approach procedures, new training requirements, redesigned cockpit instrumentation, and modified airspace design. Much of it traces back to patterns ASRS analysts found across decades of honest voluntary reports.

What Exactly Does the Ten-Day Window Protect?

The ten-day window is firm, and the protection it provides is specific. Filing within ten days of an incident shields you from civil penalties for an inadvertent, non-deliberate FAR violation.

Four conditions must all be met:

1. The violation was inadvertent and not deliberate
2. It did not involve a criminal offense
3. It did not involve an accident
4. It did not reflect a lack of qualification or competency for the certificate you hold

You also need a clean enforcement record for the five years preceding the incident.

If all four conditions are satisfied and you filed within ten days, civil penalties are off the table.

What Does ASRS Filing NOT Protect You From?

The immunity has real limits. Filing a report does not protect against:

• Criminal prosecution
• Certificate revocation based on demonstrated lack of qualification
• Actions arising from a pattern of similar violations, even if each had a corresponding filed report

The protection is designed for honest, inadvertent mistakes made by otherwise qualified pilots - not as a recurring shield for the same error.

When Should You File an ASRS Report?

The threshold is not whether the FAA noticed or whether the controller said anything. The threshold is whether a deviation or safety concern occurred that is worth documenting. File in any of these situations:

• You deviated from an ATC clearance, even slightly, even if the controller acknowledged it without comment
• You entered controlled airspace without a clearance - Class B, C, D, or a TFR - even briefly
• You had an airborne emergency, declared or undeclared
• You experienced navigation confusion that put you somewhere you did not intend to be
• You missed a clearance due to a radio call on the wrong frequency at a critical moment
• You had a runway incursion, even minor, even at a low-traffic airport

If the conversation after a pilot deviation number call suggests a potential enforcement issue, file the ASRS report before the day is over. The controller giving you a phone number is documentation, not a conviction. Being cooperative on that call and filing the report are not in conflict - do both.

Who Is Eligible to File?

Any pilot holding a certificate or authorization under FAR Parts 61, 63, 65, or 141 is eligible to file. This covers student pilots through ATP certificate holders, as well as flight instructors, mechanics, and air traffic controllers.

How Do You Actually File?

The process takes roughly twenty minutes for a thoughtful submission. Go to ASRS.arc.nasa.gov and complete the online form. You’ll provide:

• Date and time of the incident
• Location
• Aircraft type
• Airspace category involved
• Description of what happened
• Contributing factors you identified
• What might prevent a similar occurrence

That last section - your analysis of causes and prevention - is where the program generates its lasting safety value. You are not just logging an event; you are contributing your firsthand perspective on what led to the problem and what might keep the next pilot out of the same situation.

NASA will mail the postcard within a few weeks. Keep it. That postcard and its date are your evidence of a timely filing.

How Is ASRS Different From Mandatory FAR and NTSB Reporting?

This distinction matters, especially for checkrides. The ASRS report is a voluntary safety report. It does not substitute for mandatory reporting requirements that exist separately:

• FAR 91.3 may require a written report to the FAA on request if you deviated from a rule in response to an emergency
• FAR 91.187 covers radio failure procedures and has its own requirements
• NTSB regulations require notification and reports for accidents and certain incidents

When both mandatory FAA/NTSB reporting and an ASRS report apply, you file both. They serve different purposes and operate on different timelines.

What Does This Mean for Checkride Prep?

Examiners testing this topic are not looking for a memorized regulation number. They want to see that you understand the intent of the program: the distinction between what it protects and what it does not, why the ten-day window is firm, and the safety culture it reflects.

The FAA created the ASRS architecture - the NASA firewall, the confidentiality, the civil penalty waiver - because the most valuable safety data in aviation was locked in pilots’ heads by fear of consequences. These are not loopholes in the system. They are the design. The Airman Certification Standards treat aeronautical decision-making and safety culture as assessed competencies. Understanding and using the ASRS when appropriate is exactly the kind of judgment examiners are looking for.

Advisory Circular 00-46F is the FAA’s full guidance document on the program and is worth reading before you ever need it.

Key Takeaways

• FAR 91.25 prohibits the FAA from using an ASRS report as evidence in a certificate action against the pilot who filed it
• The ten-day window is firm - file the day the incident occurs, not after you see whether the FAA follows up
• Protection covers civil penalties for inadvertent violations; it does not cover criminal offenses, accidents, or demonstrated lack of qualification
• NASA administers the program, not the FAA - the firewall is structural and intentional; your name does not appear in the database
• ASRS filing does not replace mandatory NTSB or FAA reporting; when both apply, file both
• The postcard NASA mails you is your evidence of timely filing - keep it