Demo Press Request Access
Reference

LMA5390 Explained
The Seven-Day Notice Clause

LMA5390 is a short clause developed by the Lloyd's Market Association, widely used in aviation war risk insurance. It permits underwriters to either cancel cover entirely, or exclude named geographic areas from cover, on seven days written notice. The clause is the mechanism by which airspace-specific insurance responds to conflict events within a week rather than within a policy year.

What the Clause Does

LMA5390 gives underwriters two specific rights:

  • Full cancellation — terminate the policy entirely on 7 days notice.
  • Geographic exclusion — remove specific countries, FIRs, or regions from cover, again on 7 days notice.

In both cases the insured may obtain reinstatement or replacement cover, typically at revised premium. If replacement is not possible, the insured loses cover for the affected area — and may therefore lose the ability to operate there if lessors / financiers require continuous cover.

Why It Exists

Aviation war risk is a volatile class. Exposures can shift in hours (missile strikes, airspace closures, conflict escalations). Annual policy terms would leave underwriters exposed at original pricing for a year after circumstances change dramatically. LMA5390 addresses this by keeping the policy continuously rolling — underwriters reprice or exclude as exposures evolve.

For airlines, the clause means that access to specific airspace is always conditional on continuing underwriter willingness to cover it. A geographic exclusion effectively denies commercial operation even when the target state's airspace remains physically open.

Real Cases

  • February 2022. Following the Russia-Ukraine escalation, LMA5390-style exclusions were applied to Russian, Ukrainian, and Belarusian airspace within days. Premium for adjacent regions rose materially.
  • October 2023. Middle East escalation triggered geographic adjustments covering Israel, Lebanon, and adjacent airspace. Premiums spiked; some exclusions were partial (altitude-band, time-of-day).
  • February 2026. The Gulf closure cascade triggered the most rapid multi-FIR repricing on record.

Educational reference. Policy wordings vary; consult qualified insurance counsel for specific situations. See Terms of Service.