What is hangarkeepers liability insurance?
Hangarkeepers liability covers physical damage to aircraft owned by others while those aircraft are in your care, custody, or control for storage, service, repair, or safekeeping. It applies whether the aircraft is inside the hangar, on the ramp, or being moved between the two. It is the aviation equivalent of garagekeepers coverage for an auto dealership, and it exists because the care, custody, and control exclusion in general liability removes exactly this exposure.
What it does not cover is your own aircraft, which needs hull coverage, and it does not cover injury to people, which stays with your aviation premises liability. It also generally excludes damage to aircraft while in flight unless the policy specifically extends to flight operations, which matters for shops performing maintenance test flights and for any operation that repositions customer aircraft.
- Covers damage to non-owned aircraft in your custody for storage or service
- Applies in the hangar, on the ramp, and during ground movement
- Does not cover bodily injury, which stays with premises liability
- Test flights and repositioning usually need a specific extension
- Contents of the aircraft, avionics removed for bench work, and engines off the airframe may need scheduling
How much hangarkeepers limit do you need?
Set the limit at the maximum value of aircraft that can be in your care at one time, not at the value of an average aircraft. That distinction is the single most common error in this line. An operator who reasons that most of their customers fly $500,000 piston twins and buys a $1,000,000 limit is exposed the first weekend a transient Citation and a King Air share the hangar during a storm.
Limits are written two ways, and the difference is significant. A per aircraft limit with an occurrence cap, such as $2,000,000 per aircraft and $10,000,000 per occurrence, protects better in a multi-aircraft event like a hangar collapse or fire. A flat per occurrence limit with no per aircraft breakout is simpler but can be exhausted by one high-value airframe. Ask for both numbers in every quote so you are comparing the same thing.
A practical exercise: walk the hangar on your busiest night, write down every tail number, look up realistic replacement values, and add them. Most operators find the total is two to four times the limit they carry. Catastrophic aggregation events, meaning fire, hail, wind, and hangar structural failure, are precisely when every aircraft on the field is involved at once, so the total is the number that matters.
What is the difference between legal liability and in-your-care coverage?
Legal liability wording pays only when you are legally responsible for the damage, meaning negligence has to be established. Direct excess or in-your-care wording pays for damage to the aircraft while it is in your custody regardless of fault, subject to the policy terms. The premium difference is meaningful and so is the outcome.
Consider hail. A storm damages six aircraft parked on your ramp because the hangar was full. Under legal liability wording, you are likely not negligent, so your policy pays nothing and each owner turns to their own hull coverage. That may be the correct commercial result, but it is also the moment six customers decide whether to keep basing with you. Under direct excess wording, your policy responds after the owner's own hull insurance, which preserves the relationship and covers deductibles and gaps.
Most storage agreements and many corporate flight departments now specify which form they expect. Read your customer contracts before you buy, because agreeing contractually to be responsible for damage regardless of fault, while carrying legal liability wording only, creates an uninsured contractual obligation.
- Legal liability requires negligence and pays nothing for no-fault events like hail
- Direct excess responds regardless of fault, typically over the owner's own hull coverage
- Customer storage agreements may contractually require the broader form
- Contractual assumption of liability beyond your policy form creates an uninsured obligation
What does premises liability miss at an airport?
Aviation premises liability covers bodily injury and property damage arising from your operations, and the gaps that matter are usually specific rather than general. Fueling is the big one. Fuel delivery, misfueling, and contaminated fuel claims fall under products and completed operations rather than premises, and misfueling a turbine aircraft with jet A instead of avgas, or the reverse, can destroy an engine and cause a fatal accident. Confirm the products and completed operations limit is adequate and that fueling operations are disclosed and rated.
Ground support equipment is another. Tugs, deicers, lavatory carts, and belt loaders cause a large share of ramp damage, and coverage for them can sit in different places depending on whether the equipment is licensed for road use. Airport authorities also impose contractual requirements through leases and operating agreements, commonly requiring $5,000,000 to $25,000,000 in combined single limits, naming the authority as additional insured, and adding a waiver of subrogation. Those requirements should be checked at every renewal, since airport authorities update them and a lease violation is a business problem, not just an insurance one.
How do maintenance shops cover products and completed operations?
Products and completed operations coverage responds to claims arising after your work is finished and the aircraft has left your facility, which is where the most severe aviation claims originate. A maintenance error that contributes to an accident two months later produces a claim measured in millions, and it will be brought against the shop, the mechanic, and the parts supplier.
Repair stations should confirm several things. The completed operations limit should match or exceed the premises limit rather than sharing a small sublimit. Coverage should follow the aircraft after departure without a geographic restriction that stops at the airport fence. The grounding exclusion is worth reading carefully, since grounding coverage pays for the loss of use of a fleet grounded because of a defect traced to your work, and it is often excluded or heavily sublimited.
Certificated repair stations should also look at their own errors and omissions exposure separately from products liability, since faulty workmanship that damages the aircraft you worked on, without causing an accident, may fall in a gap between hangarkeepers and products coverage. This is one of the areas where aviation policy forms differ the most from carrier to carrier, and where a side by side comparison is worth the time.
Get a Coverage Review
The right hangarkeepers limit is a number you can only calculate by looking at what is actually on your ramp. Grandbay Financial Services works with FBOs, flight schools, and repair stations to size limits against peak exposure, compare legal liability and direct excess wording, and meet airport authority lease requirements. Schedule a review at calendly.com/grandbayfinancial.
This article is for general information and is not a substitute for policy language or professional advice.
Frequently Asked Questions
This article is for general information and is not a substitute for policy language or professional advice.