ACMI Provider Failure: How Airlines Protect Capacity (2026)
SmartLynx and Ascend Airways show what happens when a wet lease provider fails. Learn the warning signs, due diligence and contract protections that matter.
ACMI Provider Failure: How Airlines Protect Capacity When a Wet Lease Operator Exits
An ACMI contract buys flying capacity, but the capacity is only as secure as the provider behind it. Over the past year two well-known wet lease operators have left the market. This guide looks at what happened, the warning signs worth watching, and the due diligence and contract terms that help an airline survive a provider failure.
Two exits in six months
SmartLynx Airlines ceased operations in November 2025, and Ascend Airways surrendered its UK air operator’s certificate in April 2026. Both were wet lease and charter specialists tied to the same industry, and both left customers and lessors to unwind commitments.
SmartLynx: from Europe’s leading wet lease names to closure
SmartLynx was long one of Europe’s best-known wet lease providers. In late 2025 it was sold by Avia Solutions Group to a Dutch fund and entered a court-supervised restructuring. AVweb reported that new management then ceased all operations, citing an untenable financial outlook.
Avia Solutions Group has attributed the division’s weak performance to operational and maintenance problems and a downturn in narrowbody cargo demand, which forced early lease terminations. FlightGlobal covered the group’s explanation. Separately, European Business Magazine reported that Nigerian carrier Air Peace accused SmartLynx of withdrawing leased A320s without notice and claimed damages of more than $15 million. That is an allegation by one customer, but it shows how quickly a provider’s problems can reach its customers.
Ascend Airways: fuel costs, certificate economics and a managed wind-down
Ascend Airways said on April 28, 2026 that it would surrender its UK AOC and return its six Boeing 737 MAX 8 aircraft to lessors. ch-aviation reported that the Avia Solutions Group-owned operator blamed Middle East tensions and sustained jet fuel price increases. The company said these pressures added to structural challenges of running a UK certificate in the European ACMI market.
In its statement, the airline pointed to the absence of reciprocal wet leasing rights for UK carriers and a higher cost base compared with EU certificates. Aviation Business News also noted that Ascend cited reliability issues linked to early-production engine configurations. Its most recent ACMI customers, according to ch-aviation fleet data, included Air Sierra Leone, SpiceJet and SalamAir.
Ascend said it had paid April payroll in full and described a managed wind-down intended to limit disruption to customers and lessors. The regulatory point is covered in our guide to EU and UK wet lease approval rules.
What to watch before and during a contract
| Warning sign | What to check |
|---|---|
| Recent ownership change | Who now controls the operator, how they are funded and whether your contract has change-of-control notice rights |
| Restructuring or creditor protection | Court filings, lender positions and whether lessors are being paid on time |
| Fleet withdrawals | Aircraft leaving customers at short notice, or lessors repossessing aircraft |
| Crew and payroll stress | Reports of late pay, crew attrition or heavy reliance on temporary staff |
| Maintenance and reliability | Limited maintenance capacity, repeated delays or early-production engine issues |
| Segment concentration | Heavy exposure to one market, such as narrowbody cargo, where demand can fall quickly |
| Certificate economics | Whether the operator’s AOC and base give it a sustainable cost position in its market |
To verify the operational basics, see our guide to the air operator certificate and how airlines audit crew training records before a lease. Our top 20 ACMI operators list gives a view of the market’s larger providers.
Contract protections that matter if a provider fails
No clause can guarantee capacity, but several terms improve an airline’s position:
- Termination triggers: insolvency, suspension or loss of the AOC, and change of control, with clear notice requirements.
- Substitution obligations: the provider must supply an equivalent aircraft where possible, with defined response times.
- Fleet-change notice: advance notice if the aircraft assigned to your programme may be withdrawn or swapped.
- Payment structure: avoid large unsecured prepayments, and define how any deposit is held and returned.
- Information rights: regular updates on operational status, lessor relations and certificate matters.
- Remedies and caps: understand liability limits, because a claim against an insolvent operator may recover little.
Read our detailed guide to ACMI contract clauses airlines should negotiate and the related aircraft lease default triggers and security deposit guides. For legal support, see our list of aviation law firms in London.
Build a backup plan before you need one
- Pre-qualify a second provider: collect documents, approvals and indicative pricing in advance so a switch takes days, not weeks.
- Keep an RFP ready: a prepared request, using the data points airlines should provide, speeds the search.
- Know your short-term options: see short-term ACMI for schedule recovery and ACMI versus charter airline recovery.
- Limit concentration: avoid placing all peak-season or critical-route capacity with one provider.
- Map the demand drivers: understand what creates ACMI demand, because a failure usually coincides with tight supply.
Cargo operators face the same risk. See how to structure a cargo ACMI RFP and cargo ACMI pricing per block hour. Market context is in our analysis of why airlines are turning to ACMI in 2026.
Frequently asked questions
What happens to an airline’s capacity if its ACMI provider stops operating?
The customer loses the aircraft and crew supplied under the contract, usually with little notice. Because the aircraft flew under the provider’s air operator certificate, the customer cannot simply keep operating it. Airlines normally need replacement capacity from another provider, a sub-charter or their own fleet.
What are the warning signs that a wet lease provider is in trouble?
Common signs include a recent change of ownership, restructuring or creditor-protection proceedings, aircraft being withdrawn from customers at short notice, reports of late crew pay, lessors reclaiming aircraft, heavy dependence on a single market segment, and maintenance or reliability problems that reduce availability.
Which contract clauses help if an ACMI provider fails?
Useful protections include termination rights on insolvency, loss or suspension of the operating certificate or change of control, obligations to provide substitute aircraft, notice periods for fleet changes, limits on prepayments or clear handling of deposits, and clear remedies for non-performance. A specialist aviation lawyer should review the terms.
Should airlines use more than one ACMI provider?
Many airlines pre-qualify a backup provider so they can move quickly if the primary provider fails. Using a single provider for a large share of capacity increases concentration risk, particularly on critical routes or during peak season.
Is the failure of an ACMI provider common?
Failures are uncommon relative to the number of contracts, but they can be severe. SmartLynx ceased operations in November 2025 and Ascend Airways surrendered its UK air operator certificate in April 2026, showing that even established providers with large parent groups can exit the market.
Key takeaways
Treat the provider as part of the risk, not just the aircraft. Check ownership, liquidity, maintenance capacity and certificate economics before signing, negotiate clear exit and substitution terms, and keep a second provider ready. Insurance cover for your own operation also matters, and our list of aviation insurance brokers is a starting point.
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