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Aviation Insurance — Technical Risk Solutions

Aviation Insurance:
Hull, War Risks and Liability

Comprehensive insurance structuring for all aviation sector participants — commercial airlines, charter operators, private aircraft owners, MRO/FBO operators, and flight training organisations.

Hull All Risks War Risks — Hull War Aviation Liability / Combined Single Limit (CSL) Passenger Liability Engines & Spares Deductible Buy-Back Personal Accident Hangarkeeper's Liability Aviation Products Liability
SEDDK-Licensed Insurance Broker SBD Member London Market access — Hull War capacity Agreed Value and Combined Single Limit (CSL) structuring expertise

Coverage overview and quotation

Aviation insurance can include separate covers for the aircraft's physical damage, war risks, and third-party or passenger liability. Neolife prepares a submission file using aircraft and pilot details, intended use, geographical operating area, and loss history, then negotiates limits and policy terms tailored to your operation.

The four core pillars of aviation insurance

Aviation insurance is not a single product. The four core pillars must be considered together; coverage gaps and overlaps should be identified in advance.

Physical Damage

Hull All Risks

  • Sudden and accidental physical damage, excluding war
  • Accident, hard landing, foreign object damage (FOD)
  • Fire, water damage, storm — on the ground
  • Collision — in the air and during ground movements
  • Agreed value basis — total loss paid at agreed amount
  • Wear and tear / improper maintenance excluded
War Risks

Hull War

  • Separate cover for war risks excluded from the hull policy
  • War, civil war, insurrection-related damage
  • Terrorism and sabotage
  • Confiscation, seizure, nationalisation
  • Hijacking
  • Typically placed with separate London Market capacity
Liability

Aviation Liability / Combined Single Limit (CSL)

  • Third-party bodily injury and property damage
  • Passenger liability (per seat or within CSL)
  • CSL: one unified limit — greater flexibility
  • Each aircraft / any one occurrence distinction
  • Cargo and mail liability
  • Third-party damage on the ground around the airport
Materials

Engines & Spares Coverage

  • Engines and spare parts at specified locations
  • Damage to engine while running (including ground runs)
  • Damage in transit
  • Theft and fire — in storage
  • Damage due to improper maintenance excluded
  • Per-item limit determined separately

Agreed Value and limit structuring

Agreed Value — Why It Matters

What Is Agreed Value?

Agreed Value

The insured value of the aircraft is mutually agreed between the insured and the insurer at policy inception. In the event of a total loss, this agreed amount is paid — there is no dispute over actual market value or depreciation.

Difference from Actual Cash Value (ACV)

ACV Is Uncommon in Aviation

The "actual market value" approach common in motor insurance is not standard in aviation. The agreed value approach eliminates value disputes at the time of loss and is preferred by lenders and financiers.

Total Loss vs Partial Loss

Total and Partial Loss

In the event of a total loss (aircraft destroyed or missing), the agreed value is paid. For a partial loss, repair costs are covered, but cannot exceed the agreed value. Constructive total loss (where repair cost exceeds value) is separately defined.

Revaluation

Agreed Value Should Be Updated

It is recommended to review and update the agreed value at each annual renewal in line with market conditions. Significant undervaluation can lead to underinsurance risk; some policies include a proportional condition for certain thresholds.

Each aircraft / any one occurrence limit distinction

Each Aircraft

Per-Aircraft Limit

In fleet policies, the hull value applicable separately to each individual aircraft. Each aircraft's value is listed in the policy; any loss is calculated against that aircraft's agreed value.

Any One Occurrence

Maximum per Single Event

If multiple aircraft are affected simultaneously in a single accident event (e.g. a hangar fire), the policy's "any one occurrence" limit applies and the total indemnity is capped at that ceiling.

CSL

Combined Single Limit

A liability insurance structure that consolidates bodily injury and property damage indemnities into one unified limit rather than separate sub-limits. Provides flexibility in claim composition; the distribution is unrestricted as long as the total limit is not exceeded.

Split Limits

Split Sub-limits

Separate upper limits set for bodily injury and property damage respectively. Less flexible than CSL; even if claims in one category are excessive, the other category's limit cannot be used. Found in certain specialist market structures.

Each passenger sub-limit: A separate "each passenger" sub-limit may be defined within the CSL structure. This sub-limit caps the maximum liability per passenger. In commercial aviation, the Montreal Convention (MC99) and ICAO requirements set minimum liability limits; the policy limit must satisfy these requirements.

War exclusion and separate Hull War coverage

The war and similar risk exclusions in the hull policy and the separate Hull War policy must be reviewed together. AVN52E is an aviation liability extension clause; it is not the name of the hull war policy or a substitute for it. The clause version used, cancellation provisions, and geographic limits are confirmed on the quotation.

War Exclusion and Hull War Coverage

Risks excluded from Hull All Risks and those reinstated under Hull War

Excluded from Hull All Risks (war exclusion)
  • War, civil war, armed conflict
  • Insurrection, revolution, seizure of power
  • Acts of terrorism
  • Sabotage
  • Confiscation, nationalisation, seizure
  • Government-imposed blockade / embargo
  • Hijacking
  • Malicious damage — deliberate destruction
Reinstated under Hull War
  • War and armed conflict damage
  • Terrorism and sabotage
  • Confiscation and nationalisation
  • Damage resulting from hijacking
  • Damage in conditions of insurrection and civil unrest
  • Malicious damage — under certain conditions
  • Detonated / undetonated weapon (contested)
Important: The Hull War policy is typically placed separately using specialist London Market capacity. Certain regions and conflict zones may require additional premium, sub-limits, or additional exclusions. The "restricted and excluded areas" list (hull war schedule) is regularly updated; whether an operation overlaps with these areas must be monitored continuously.

Geographic Operating Limits and Restricted Areas

The operating territory must be clearly defined for both the Hull and Hull War policies. If a loss occurs on a flight outside the approved operating area, coverage may be disputed. In particular:

  • Hull War schedule areas: Every entry into a high war-risk area must be notified in advance to the hull war underwriter; some areas require additional premium or prior approval.
  • OFAC/sanctions-list countries: In structures where US reinsurers are involved, flights to sanctioned countries create additional compliance risk.
  • Arctic / oceanic routes: May require special assessment due to search-and-rescue difficulty and elevated operational risk.

Pilot Warranty, Approved Use, and Geographic Operating Limits

Certain conditions in aviation insurance can directly extinguish the right to a claim if breached. These must be carefully reviewed before the policy incepts.

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Minimum Flying Hours

Minimum total hours required of the pilot for the aircraft type. A flight conducted below this threshold falls outside the policy's cover.

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Type Rating

A valid type rating authorising the pilot to fly the specific aircraft type is mandatory.

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Medical Certificate

A valid and current medical certificate (Class 1 or 2). A flight conducted with an expired medical constitutes a warranty breach.

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Check Ride / Proficiency

Regular periodic proficiency checks and simulator assessments. Required as an additional condition in some policies.

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Recent Experience (Recency)

Some policies define a minimum number of flying hours within a recent specified period as a warranty (recency requirement).

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Listed Pilot

If a pilot not named or not meeting the criteria listed in the policy flies the aircraft, a warranty breach may arise.

Approved Use breach: Using an aircraft approved under the policy for "private use" to carry passengers for hire, operating a charter service without a charter licence, or conducting training flights outside the scope of approved use may extinguish the right to a claim. Prior agreement must be obtained from the insurer before any change in operational use.

Hull / War / Liability / Spares: which scenario, which coverage?

Understanding in advance which policy responds in a loss scenario simplifies both the negotiation phase and claims management.

Scenario Hull All Risks Hull War Liability / CSL Spares
Hard landing — airframe damage Yes No No No
Mid-air collision with another aircraft Hull damage No Third-party damage No
Passenger injury — in flight No No CSL / Pax Liability No
Fire — post-crash Yes No 3rd-party damage No
Terrorist attack — bomb on board Excluded (war excl.) Subject to policy terms War liability — separate assessment No
Hijacking Excluded Subject to policy terms War liability linked No
Government confiscation / nationalisation Excluded Yes No No
Engine — warehouse fire No — not in storage No No Spares — in storage
Engine — transit damage Marine Cargo / Spares No No If transit cover included
Damage to third-party aircraft in hangar No No General liability? No Hangarkeeper's
Damage to component used in maintenance No No Products Liability Partial — wording-dependent
Pilot error — warranty breach Breach — cover ceases Breach Breach Breach
Flight outside approved use Approved use breach Breach Breach Case-by-case

Deductible Buy-Back and supplementary covers

Main Hull Policy Deductible

In Hull All Risks policies, the deductible — the insured's own retention — varies by aircraft size and operation type. For large commercial aircraft, the deductible can represent a significant financial burden. This is the amount the insured must bear out of pocket in the event of a loss.

Deductible Buy-Back Insurance

A separate insurance that covers all or part of the deductible in the hull policy. It is purchased independently from your main hull policy. It is particularly useful for managing the cost of frequent small deductible losses in high-intensity operations and improves financial predictability throughout the year.

Additional and supplementary covers

Personal Accident

Personal Accident Insurance (PA)

Individual accident insurance covering accidental death, permanent disability, and medical expenses. Structured separately for pilots and crew. In aviation, PA cover may be assessed independently from workers' accident or life insurance.

Ground Operations

Ground Risk / Taxiing

Damage to the aircraft occurring during ground movements (taxiing, towing, pushback) rather than in flight. Expected to be included under Hull All Risks; however, the definition and scope of "taxiing" must be clarified in the policy wording.

MRO / FBO

Hangarkeeper's Liability

Covers damage caused to third-party aircraft taken into custody for maintenance, repair, or storage. The care, custody & control exclusion in a general liability policy does not protect those aircraft; the hangarkeeper's policy closes this gap.

Manufacturer / MRO

Aviation Products Liability

Third-party damage arising from the failure of a manufactured or maintained part or component. Critical for aircraft manufacturers, component manufacturers, and MRO companies. The potential for a single product failure to trigger a major accident chain must be considered.

Revenue Loss

Loss of Use / Business Interruption

Revenue loss resulting from the aircraft being grounded due to an insured loss. A "loss of use" limit can be structured for private aviation; a more comprehensive BI structure can be built for charter and commercial operations. Availability in the specialist market may be limited.

Construction

Hull Under Construction

Covers physical damage to an aircraft during the production process prior to first flight. Assessed for damage and transit during the period from the factory until delivery to the operator.

Insurance profile by operation type

The purpose served, how the aircraft is used, and who flies it directly affects the coverage scope, premium, and warranty structure of aviation insurance.

Operation Type Risk Profile Pilot Warranty Requirements Key Considerations
Commercial Airline (AOC) Regulated, high standards ATPL, type rating, company check Highest liability limits; ICAO MC99 compliance mandatory
Charter Operator Varied routes, heavy utilisation CPL/ATPL, type rating, medical Approved use must explicitly include "charter"; route breadth important
Private Use Low hours, varied pilot profiles PPL/CPL, total hours, recency No carriage of fare-paying passengers; approved use breaches are common
Flight Training (FTO) Student pilot — high loss frequency Instructor warranty separate; solo flight criteria "Training operations" must be explicitly in approved use; touch-and-go included?
Air Taxi Small aircraft, short routes, frequent take-offs/landings CPL, type rating, medical Passenger liability key; small aircraft crew limitations
Unmanned Aircraft (UAS/Drone) Emerging market Operator certificate (DGCA/SHGM) Hull + 3rd-party liability; insurability and premium market developing
Air Ambulance Night/adverse weather, emergency flights IFR rating, night flying, medical Medical equipment on board and medical liability should also be assessed
Agricultural / Aerial Application Low altitude, cable/obstacle risk Special operations approval Chemical damage liability risk; environmental liability may also arise

Fleet composition and loss history: an underwriting perspective

Aviation underwriters apply standard industry risk models but assess each operator's individual profile in detail.

Fleet composition

  • Aircraft type and age: Older aircraft generally carry higher loss frequency. Type certification and serial number enter the underwriting record.
  • Fleet size and homogeneity: A homogeneous fleet of a single type is assessed differently from a heterogeneous fleet of mixed types.
  • Engine type: Piston, turboprop, jet — each category has a distinct statistical loss profile.
  • Maintenance records and certification: CAMO (Continuing Airworthiness Management Organisation) certification and compliance with current airworthiness directives.

Loss history

  • Last 5–10 years: Total number of losses, total loss amount, and amounts paid are declared in detail.
  • Large loss explanation: If a single loss exceeds a given percentage of the total insured value, a detailed explanation is required.
  • Loss frequency: A heavy loss history leads to both premium increases and higher deductibles.
  • Loss types: Pilot error, technical failure, or weather-related? Underwriters place significant importance on root cause analysis.

Loss prevention value: A robust Safety Management System (SMS), regular CRM training, near-miss reporting, and an active safety audit record create a positive impression in underwriting assessment and can provide an advantage in premium negotiations.

What information is required for risk assessment?

The following information and documents should be prepared to enable a prompt and complete assessment of an aviation insurance submission. This list can also be used during client meetings.

Aircraft and Fleet Details

Aircraft type, manufacturer, model and serial number
Year of manufacture and total airframe hours
Engine type, serial number and engine hours
Flying hours in the last 12 months (per aircraft)
Airworthiness certificate and CAMO details

Pilots and Crew

Pilot list: name, licence, type rating, total hours
Flying hours in the last 90 days and last 12 months
Current medical class and expiry date
Dates of last check ride and proficiency check
Training records for newly added pilots

Operational Details

Approved use: private / charter / training / commercial
Geographic operating area — domestic / regional / worldwide
Home base airport and overnight parking locations
Hangar or open parking — security conditions
Estimated annual flying hours and route profile

Loss History and Insurance

Last 5 years' loss history (date, cause, amount)
Current insurance programme and premiums
Required hull value (agreed value)
Required liability limit (CSL amount)
Spares list: location, type, value

Frequently Asked Questions

What is the difference between Hull All Risks and Hull War insurance?
Hull All Risks covers sudden physical damage other than war. Hull War reinstates war, terrorism, sabotage, confiscation, and hijacking risks that are removed from the main policy by the war exclusion clause. The two policies are written in separate markets with separate capacities; they must be considered together and any coverage gaps identified.
What is Combined Single Limit (CSL) and why is it preferred?
Combined Single Limit (CSL) is a liability structure that combines bodily injury and property damage indemnities under one unified limit. It provides flexibility in claim composition; managing a single limit is simpler than separate split limits. Since the concentration of a major loss between categories cannot be predicted in advance, CSL offers more efficient coverage.
Why are pilot warranty conditions so important?
Pilot warranty conditions are among the fundamental requirements that directly affect the scope of aviation insurance cover. A breach of any one condition — minimum flying hours, a valid type rating, a current medical certificate, or a proficiency check ride — can extinguish the insurer's obligation to pay a claim. All pilots must be verified against these requirements before the policy incepts.
What does agreed value mean?
Agreed value means that the insured value of the aircraft is a fixed amount mutually accepted between the insured and the insurer at policy inception. In the event of a total loss, this agreed amount is paid; there is no dispute over market value or depreciation. It is the standard accepted practice in aviation insurance.
Who needs hangarkeeper's liability insurance?
Operators who take third-party aircraft into their custody and control for maintenance, repair, storage, or parking — FBOs, MRO companies, and flight schools — require hangarkeeper's liability insurance. The care, custody & control exclusion in a standard liability policy does not protect those aircraft.
Are training flights insured differently from commercial operations?
Yes. Training operations carry a different risk profile due to the higher loss frequency associated with student pilots. Underwriters assess training flights in a separate category; pilot warranty conditions (instructor warranty, solo flight criteria) and the premium structure differ from commercial operations. It is essential that training flights are explicitly included in the approved use definition.
Why are geographic operating limits critical?
If a loss occurs on a flight outside the territory defined in the policy, coverage may be disputed. Under a Hull War policy, entry into war zones or restricted areas generally requires additional premium or prior approval. Flights to OFAC/sanctioned countries may create additional compliance risks.
How does deductible buy-back insurance work?
The deductible in a hull policy is the amount the insured must bear out of pocket in the event of a loss. Deductible buy-back insurance is a separate policy that covers part or all of that amount. It is purchased independently from the main hull policy and improves financial predictability throughout the year.

Related pages

Clause coverage scope

Aviation Insurance Clauses Group: AVN52 liability extension. Hull and liability covers should not be assumed to fall under the same clause.