Missing payments on an aircraft loan is stressful, but it helps to understand exactly what a lender can and cannot do. An aircraft loan is a secured loan: the airplane, helicopter, turboprop, or light jet you financed is the collateral. That single fact shapes everything that follows -- who can take the aircraft, whether you still owe anything afterward, and what part of the balance (if any) is genuinely negotiable.
Short answer: secured loan, repossession, then a deficiency
Because the loan is secured, the lender's core leverage is the aircraft itself. If you default, the general sequence is: the lender repossesses the aircraft, sells it, and then bills you for any unsecured shortfall that remains -- the deficiency. Sitting in the middle of all of this is a feature that makes aircraft different from almost any other consumer collateral: there is no state title. Ownership and the lender's security interest are recorded federally with the FAA Civil Aviation Registry (the Aircraft Registration Branch in Oklahoma City). So the lender records its aircraft security agreement or chattel mortgage with the FAA, and that public record is what gives notice of the lien and what the lender must work through to transfer clean title after a sale. The part you may ultimately be able to negotiate is only the unsecured deficiency left over after the aircraft is gone -- not the secured loan while you still have the aircraft and are paying on it.
Is it a crime not to pay an aircraft loan?
No. Falling behind on an aircraft loan is a civil matter, not a criminal one -- you cannot be jailed simply for owing the money. An aircraft loan is ordinary secured consumer or business debt, the same category (in that respect) as an auto loan or a boat loan. The consequences are financial and property-based: the lender can pursue the collateral and, later, any deficiency through civil collection. If it helps to see where this sits, our explainer on the difference between secured and unsecured debt lays out why a secured lender's first move is the collateral rather than a lawsuit. Be wary of anyone who tells you that you can be arrested over the loan itself; that is not how a secured debt like this works.
How the lender can take the aircraft -- the FAA registry and repossession
Two things happen at once when a lender enforces an aircraft loan: state law governs the physical taking, and federal FAA rules govern the paperwork. Under state UCC Article 9 rules, a lender can generally use self-help repossession -- physically taking the aircraft, sometimes even having it flown or ferried away by an authorized crew -- but it generally cannot breach the peace to do so. What it cannot do with a purely physical seizure is pass clean title; to sell the aircraft to a new buyer with clear ownership, the lender has to process the transfer and any deregistration through the FAA Civil Aviation Registry.
For a larger or internationally operated aircraft, another layer may apply. Under the Cape Town Convention and its International Registry, a creditor can record an "international interest" and may hold an IDERA (an Irrevocable De-Registration and Export Request Authorisation), which can let it ask the FAA to deregister and export the aircraft on default. Whether that framework applies depends on your loan, your state, and how the aircraft is registered and financed. For a fuller walkthrough of how repossession, FAA deregistration, and liens actually work, see can a lender repossess your airplane? If the process resembles what you may already know from vehicles, our page on what happens if your car is repossessed covers the analogous secured-collateral steps.
What happens after the aircraft is sold -- the deficiency
Once the aircraft is repossessed and sold, the sale proceeds are applied to what you owe. If the proceeds cover the balance plus allowed fees, you may owe nothing further -- and if they exceed it, any surplus generally goes back to you. But aircraft can sell for less than the balance, especially after allowed repossession, storage, and sale costs are added in. The shortfall that remains is the deficiency: the balance you still owed, plus allowed fees, minus the sale proceeds. That deficiency is now unsecured debt, because the collateral is gone. This is the same mechanism that applies to vehicles; our explainer on whether you still owe money after a car repossession walks through how a deficiency is calculated and why it can be smaller than borrowers expect once the numbers are checked. Some states limit or bar deficiencies in certain situations, so the amount is not automatically fixed.
Watch for FBO, mechanic, or hangar liens too
Your lender is not necessarily the only party with a claim on the aircraft. An FBO, an aircraft mechanic (an A&P repair shop), or a hangar or tie-down operator you owe -- for unpaid repairs, maintenance, storage, hangar fees, tie-down, or fuel -- can often assert a possessory mechanic's, storage, or hangar lien under state law. Because that operator already has the aircraft in its possession, it can generally hold the aircraft until it is paid and, after the notice its state requires, sell it to satisfy the lien. Priority between an FAA-recorded lender lien and a later possessory mechanic's or storage lien varies by state -- some states give the possessory lien priority for the value of the work done -- so who actually gets paid from a sale depends on the liens, their timing, and state law. If you are behind on both a loan and a shop or hangar bill, ask for itemized charges and read any lien claim carefully; can a lender repossess your airplane? explains these two enforcement doors in more detail.
Demand proper notice and a commercially reasonable sale
Before you treat any deficiency as a fixed debt, demand the paper. A lender enforcing a security interest generally must send you notice of the sale and must sell the aircraft in a commercially reasonable way -- and, where a Cape Town deregistration and export apply, follow that process. A defective notice or a lowball, poorly handled sale can reduce or even void the deficiency the lender is trying to collect. So confirm how the aircraft is registered with the FAA and which liens are recorded, ask for the notice of sale, and account for the proceeds against the balance. If the deficiency is later handed to a collector, know your rights: our guides on how debt collection works and how to respond to a debt collection lawsuit cover verification, notice, and responding if you are sued. Never fly the aircraft away, hide it, re-register it elsewhere, ferry it out of the country, or damage or ground it to avoid a repossession or lien -- the effective levers here are all lawful ones: verify, demand notice, contest an improper repossession or sale, and negotiate only what is genuinely owed.
Will it hurt your credit?
Generally, yes. An aircraft loan is an ordinary secured installment-loan tradeline that reports to the credit bureaus much like an auto loan or a boat loan. On-time payments generally help; late payments, a charge-off, a repossession, and a deficiency sent to collections all generally hurt. A repossession is a serious derogatory mark that generally stays on your credit report for about seven years, and a voluntary surrender still generally shows up as a repossession. Separately, because aircraft ownership and liens are recorded publicly with the FAA, the recorded lien and any repossession are visible in the FAA registry -- but that public-records fact is distinct from what appears on your consumer credit report. For the full picture, see does defaulting on an aircraft loan hurt your credit? and the timeline in how long a repossession stays on your credit report. Pull your own reports and dispute any inaccuracy with the bureaus.
How to resolve a genuinely-owed deficiency
Once the aircraft is gone and you have verified that a deficiency is genuinely owed and correctly calculated, that unsecured leftover can often be negotiated like other unsecured debt -- especially after it has been charged off or sold to a collector. Get any agreement in writing before you pay, and know that a forgiven or canceled balance over $600 can trigger a 1099-C cancellation-of-debt form. For how to think through negotiating that balance, see can you settle an aircraft loan? and should you pay a debt in collections? Remember: you do not settle a secured aircraft loan you still have and are still paying on -- only the unsecured deficiency after the aircraft is sold is a debt to negotiate. If enough time has passed, it is also worth checking whether the balance is time-barred before you act.
Bottom line
If you stop paying an aircraft loan, the lender's main remedy is the aircraft itself, not your freedom -- this is civil secured debt, and there is no jail for owing it. On default the lender can generally repossess the aircraft under state law and process the sale and any deregistration through the federal FAA registry, then pursue an unsecured deficiency for what remains. Watch for a separate FBO, mechanic, or hangar lien on top of the loan. Before you treat any leftover balance as owed, confirm the FAA registration and recorded liens, demand proper notice and a commercially reasonable sale, and verify the deficiency; then negotiate only the genuinely-owed, unsecured portion. Move early, keep every record, and get advice if something looks wrong.
This page is general information, not legal, tax, or financial advice. Aircraft financing law is unusually layered -- federal FAA registration and recording rules, state UCC and repossession law, the Cape Town Convention for larger aircraft, and state mechanic's/storage-lien rules -- so whether an aircraft loan is secured, whether an FBO or mechanic has a lien, whether and how a lender can repossess or deregister the aircraft, whether a deficiency is owed after a sale, and how much (if anything) is genuinely owed all depend on your loan, your state, how the aircraft is registered and financed, and the facts -- read your loan and any lien documents carefully, keep every record, and talk to your lender, your FBO or mechanic, and an aviation or consumer attorney or a legal-aid office if something looks wrong.