NTSB Part Eight Thirty, the Accident Reporting Rule Every Pilot Has to Know Before They Need It, and the Definitions That Determine Whether You Pick Up the Phone or Walk Away

NTSB Part 830 requires pilots and aircraft operators to immediately notify the NTSB when an aircraft accident occurs, and to notify for certain specified serious incidents. The regulation draws precise legal definitions between accidents and incidents - definitions that determine, in a real situation on a real ramp, whether you’re obligated to make that call. Knowing those definitions before you need them is not optional for any certificated pilot.

What Is NTSB Part 830?

The National Transportation Safety Board (NTSB) is an independent federal agency responsible for investigating transportation accidents and issuing safety recommendations. It is not an enforcement agency - it does not pull certificates. Part 830 gives the NTSB the information it needs to do that job by requiring operators to notify the agency when accidents and certain incidents occur.

The regulation defines its terms with legal precision. That precision is exactly what lets you determine whether you’re obligated to make a call.

What Is the Difference Between an Aircraft Accident and an Incident?

An aircraft accident under Part 830 is an occurrence associated with the operation of an aircraft that happens between the time any person boards with the intention of flight and all such persons have disembarked.

That window matters more than most pilots realize. If you knock a step stool into a propeller during preflight with no one on board, that is not an aircraft accident - nobody has boarded with the intention of flight. If a fuel truck backs into your wingtip after your passenger has boarded, the window is open, and depending on the damage, that could be an accident. The window closes once everyone has disembarked.

Within that window, an occurrence qualifies as an accident only if one of two conditions is met: a person suffers death or serious injury, or the aircraft receives substantial damage.

An incident is any occurrence other than an accident that is associated with the operation of an aircraft and that affects or could affect the safety of operations. Not every incident requires immediate NTSB notification - only those falling within a specific list defined by the regulation.

What Counts as Serious Injury Under Part 830?

Part 830 defines serious injury through specific criteria, not general medical severity. If any one of the following applies, you have a serious injury under the regulation:

• Hospitalization for more than 48 hours, beginning within 7 days of the accident
• A fracture of any bone, except simple fractures of fingers, toes, or the nose
• Severe hemorrhage, nerve damage, or muscle damage
• Damage to any internal organ
• Second or third degree burns, or any burns covering more than 5 percent of the body surface area
• Any infectious disease acquired through accident-related exposure

A bruise, a laceration treated at urgent care, or a minor concussion without hospitalization is an injury - but not a serious injury under the definition. The line is specific.

One critical nuance: if your passenger hits the panel on a hard landing and feels fine, but is hospitalized with internal injuries two days later, you potentially have a serious injury under Part 830. The regulation looks backward from the outcome. The fact that the injury was not apparent at the time does not change the reporting obligation.

What Is Substantial Damage - and What Isn’t?

Substantial damage means damage or failure that adversely affects the structural strength, performance, or flight characteristics of the aircraft - damage that would normally require major repair or replacement of the affected component.

Part 830 provides an explicit exclusion list. The following do not constitute substantial damage:

• Engine failure or damage limited to the engine
• Bent fairings or cowling
• Dented skin
• Small puncture holes in the skin or fabric
• Ground damage to rotor or propeller blades
• Damage to landing gear, wheels, tires, flaps, engine accessories, brakes, or wingtips

A bent wingtip from clipping a taxiway light: not substantial damage. A hard landing that pops a tire and bends the nose gear strut: likely not substantial damage, because landing gear damage is explicitly excluded.

The operative word is “limited.” If the damage propagates - if a bent gear strut has introduced stress into the firewall, or a hard landing has loaded the wing spar beyond design limits - you may be looking at substantial damage, because it now adversely affects structural integrity.

How Do You Assess a Prop Strike?

A prop strike sits right on the line. The regulation excludes ground damage to propeller blades, but many prop strikes involve more than a bent blade. A strike that produces a sudden stop or significant crankshaft loading can cause internal engine damage that is completely invisible from outside - crankshaft cracks, engine mount damage, nose case deformation. That is potentially substantial damage.

The industry standard, and what most engine manufacturers require, is that any prop strike involving sudden stoppage or significant crankshaft loading requires an engine teardown inspection before further flight. If the aircraft ends up needing engine replacement or major structural repair, that is likely substantial damage under Part 830.

When the determination is unclear on the ramp, lean toward notification. The cost of notifying the NTSB for something that turns out not to be an accident is essentially zero. The cost of failing to notify for something that is an accident is a regulatory violation.

Which Incidents Require Immediate NTSB Notification?

Not all incidents trigger notification - only those within a specific regulatory list. For general aviation pilots, the most relevant categories are:

• In-flight fire
• Aircraft collision in flight (two aircraft make physical contact)
• Flight control system malfunction or failure
• Inability of a required flight crew member to perform normal duties due to injury or illness
• Turbine engine failure where debris escapes the engine case
• Damage to property other than the aircraft estimated to exceed $25,000
• Release of all or part of a propeller blade from the aircraft
• Complete loss of information from more than 50 percent of an aircraft’s cockpit displays

A near-miss with no contact, a radio failure, a piston engine failure, or a navigation system going offline does not appear on this list. Those may warrant documentation through other channels, but they do not trigger immediate Part 830 notification.

All accidents require immediate notification - no exceptions, no minimum damage threshold.

What Does “Immediate Notification” Actually Mean?

The regulation requires the operator to notify the nearest NTSB field office by the most expeditious means available. That means a phone call. Not email. Not waiting until business hours the next morning.

The NTSB maintains regional field offices and a duty officer contact at NTSB.gov. The practical step: find that number now and save it in your phone contacts - not buried in a note, in your contacts. If you are standing on a ramp after an accident, you do not want to be searching a website for a phone number.

Who Is Responsible for Making the Notification?

Part 830 places the obligation on the operator of the aircraft. In general aviation, that is typically the pilot in command, the aircraft owner, or both. The FBO does not carry that obligation. The flight school does not, unless they are the operator.

The sequence: notify the NTSB first, then notify the aircraft owner if that is not you, then contact the FBO or rental company. In that order.

What Are the Written Report and Evidence Preservation Requirements?

Part 830 does not require a written report after every accident automatically. If the NTSB requests one, you must file it within 10 days. Miss that window and you have added a regulatory violation to an already difficult situation.

Evidence preservation is also required. After an accident or reportable incident, preserve the wreckage, any cargo on board, and all aircraft records related to the accident. Do not move the aircraft. Do not clean it up. If the aircraft must be moved for safety reasons, document its original position first - photographs from multiple angles, sketches, witness statements. Do this before moving the airplane, not after. The position of the wreckage tells investigators things that nothing else can.

Does Reporting to the NTSB Affect Your FAA Certificate?

Reporting under Part 830 and FAA enforcement are two separate processes. The NTSB investigates for safety causes. The FAA has separate authority and separate processes for enforcement action. Filing a Part 830 notification is not filing an admission of a FAR violation with the FAA.

An accident investigation can surface information the FAA acts on, particularly if the investigation reveals careless or reckless operation. The risk of not reporting, however, is greater. Failing to report an accident is the kind of detail that makes an enforcement action substantially worse when it does occur.

How Does the NASA ASRS Fit In?

The NASA Aviation Safety Reporting System (ASRS) is a voluntary, confidential safety reporting program administered by NASA for the FAA. Filing an ASRS report within 10 days of an incident or inadvertent FAR violation - and certifying the incident was not deliberate - provides a degree of protection from FAA enforcement action for that specific incident. It is not blanket immunity, and it does not apply to accidents or criminal conduct.

The ASRS is not a substitute for Part 830 notification. If you have an accident, you notify the NTSB under Part 830 regardless. If an inadvertent FAR violation is also involved, you may separately file an ASRS report for the protection it provides on the enforcement side. Two separate actions, two separate programs, two separate purposes.

What Does the Checkride Examiner Expect?

The Airman Certification Standards require demonstrated knowledge of regulations applicable to your certificate, and Part 830 is on that list. The examiner is not looking for “call the NTSB.” They want to see that you know the definitions, can apply them to a scenario on the spot, and understand the difference between what triggers immediate notification and what does not.

A complete answer covers three elements: the notification obligation, preservation of evidence, and the 10-day written report window if requested by the NTSB. Know that framework cleanly.

Key Takeaways

• All aircraft accidents require immediate NTSB notification - no minimum damage threshold, no exceptions. The accident window opens when any person boards with the intention of flight and closes when all persons have disembarked.
• Serious injury is defined by specific criteria, including hospitalization over 48 hours (beginning within 7 days), bone fractures (excluding fingers, toes, and nose), internal organ damage, and second or third degree burns. The rule looks backward from the outcome, not from what was apparent at the time of the accident.
• Substantial damage excludes damage limited to the engine, bent fairings, dented skin, landing gear, tires, flaps, and wingtips - but only when that damage is isolated. Damage that propagates into the airframe structure is a different determination.
• Only specific incident categories trigger immediate notification - primarily in-flight fire, flight control malfunction, and mid-air collision. A near-miss, radio failure, or piston engine failure does not qualify.
• The ASRS is not a substitute for Part 830. They serve different purposes through different agencies, and both may apply after the same event.