ECJ Ruling: Airlines Can't Use Crew Illness to Avoid Paying You Compensation

If an airline cancelled or significantly delayed your flight and blamed it on a sick pilot or crew member, you may have been told your compensation claim doesn't qualify under EC 261/2004 because the disruption was caused by "extraordinary circumstances."

That argument just got a lot harder for airlines to make.

The European Court of Justice (ECJ) issued a landmark ruling making clear that staff illness — including pilot illness — does not automatically constitute extraordinary circumstances under EU law. Airlines cannot use crew sickness as a blanket shield against paying passengers what they're legally owed.

This article explains exactly what the court decided, why airlines have been misusing the "extraordinary circumstances" defence, and what you can do if your claim was rejected on this basis.

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Background: What Are "Extraordinary Circumstances"?

Under EC 261/2004, airlines are not required to pay delay or cancellation compensation if the disruption was caused by "extraordinary circumstances which could not have been avoided even if all reasonable measures had been taken."

The regulation gives a few examples in Recital 14: political instability, extreme weather, security risks, unexpected flight safety shortcomings, and strikes that affect the operating carrier. But it doesn't define the term precisely — which is where the courts come in.

Over the years, EU courts have developed a two-part test for extraordinary circumstances:

1. The event must be inherent in the normal exercise of air transport activity — in other words, if it's a predictable risk that airlines routinely deal with, it's not extraordinary.
2. The event must be outside the airline's actual control — if the airline could have prevented it or taken reasonable steps to mitigate it, it doesn't qualify.

Both conditions must be met. Meeting only one is not enough.

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The Case: ECJ Case C-156/22

What Happened

The case involved a flight that was cancelled because a member of the operating crew became unexpectedly ill shortly before departure. The airline cited this illness as an extraordinary circumstance, argued it could not have avoided the cancellation, and refused to pay EC 261 compensation to affected passengers.

The passengers disputed this, and the case was referred to the ECJ for a preliminary ruling on how to interpret the "extraordinary circumstances" definition under Article 5(3) of EC 261/2004.

What the Court Decided

The ECJ ruled that unexpected crew illness does not, by itself, constitute an extraordinary circumstance sufficient to exempt an airline from its compensation obligations.

The court's reasoning was grounded in the two-part test. On the first condition — whether the event is inherent in normal operations — the court found that staff illness, while unpredictable in timing, is an entirely foreseeable category of event in any industry that relies on human labour. Airlines operate with flight crew every day. The prospect that any individual crew member might fall ill on any given day is not an extraordinary event — it is a normal operational risk.

On the second condition — whether it was outside the airline's control — the court focused on what the airline could reasonably be expected to do. Airlines are sophisticated commercial organisations with significant resources. They operate at scale, employ many crew members, and routinely manage complex logistics. The court found that a well-organised airline should have adequate contingency staffing and reserve crew arrangements in place precisely to deal with situations like sudden illness.

In other words: if your airline couldn't cover a single sick pilot because they had no contingency plan, that is an operational failure, not an extraordinary circumstance.

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Why Airlines Have Been Misusing This Defence

The "extraordinary circumstances" defence is one of the most abused provisions in EU aviation consumer law. Airlines are financially incentivised to invoke it as broadly as possible — every successful denial saves them up to €600 per passenger.

Crew illness has been a particularly common misuse because it sounds like something genuinely beyond the airline's control. How can you hold an airline responsible for a pilot catching flu?

The answer is: not for the illness itself — but for not having a backup plan.

Think of it this way. A hospital cannot refuse to operate on a patient because the scheduled surgeon is sick if they have 30 other surgeons on staff. The fact that one surgeon fell ill is unfortunate, but it is not an extraordinary circumstance in the context of a hospital's daily operations. The same logic applies to airlines.

The ECJ ruling makes this principle explicit: airlines must plan for foreseeable human resource disruptions. Failing to do so is an operational deficiency — and operational deficiencies are not extraordinary circumstances.

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Other Crew and Staff Issues That Also Don't Qualify

The C-156/22 ruling is specific to illness, but the court's reasoning applies equally to a broader range of staff-related issues that airlines often try to characterise as extraordinary:

Crew Scheduling Errors

If a crew member is not available because of an internal scheduling mistake or rostering error, that is entirely within the airline's control. There is no conceivable way this qualifies as extraordinary.

Training and Certification Shortfalls

If a pilot is grounded because their certification or type rating has lapsed, that is a staffing management failure. Airlines are responsible for tracking and maintaining their crew certifications.

Strikes by the Airline's Own Staff

Strikes by the airline's own employees — ground crew, cabin crew, pilots employed directly by the carrier — are not extraordinary circumstances under EU law, as confirmed by the ECJ in Case C-195/17 (Hessische Verwaltungsschule). A strike by your own employees is a labour relations issue within your control.

This is distinct from strikes by third parties — for example, an ATC strike, a security staff strike run by an independent government agency, or industrial action by airport ground handling contractors. Those may qualify.

Crew Being Out of Position Due to Previous Delays

This is common: a flight is delayed because the inbound aircraft arrived late with the crew that was supposed to operate the next leg. If that original delay was caused by an extraordinary circumstance, the downstream delay may also be covered. But if the original delay was for routine reasons (technical issues, operational scheduling), the cascading effect does not inherit the extraordinary circumstances protection.

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What DOES Qualify as Extraordinary Circumstances?

To be fair to airlines, some disruptions genuinely do qualify. The key is that the event must be truly outside the airline's control and not part of normal aviation operations.

Genuine extraordinary circumstances include:

• Severe, unexpected weather events: A sudden severe storm, significant volcanic ash cloud (as with Eyjafjallajökull in 2010), or hurricane-force winds that make safe operation impossible. Routine rain, fog, or wind does not qualify.
• Air traffic control (ATC) strikes by third parties: A strike by EUROCONTROL staff, national ATC providers, or other third-party ATC organisations. Not a strike by the airline's own staff.
• Political instability or security threats: Genuine airspace closures due to conflict, terrorism-related restrictions, or government-imposed no-fly zones.
• Airport security incidents: A security incident at the departure or destination airport that is outside anyone's reasonable prediction.
• Hidden aircraft defect discovered during pre-flight inspection: An unexpected safety issue that could not have been detected during normal maintenance checks. Routine technical failures do not qualify.

The common thread is genuine unpredictability combined with genuine lack of control. If a reasonable, well-run airline should have planned for it, it's not extraordinary.

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What to Do If Your Claim Was Rejected Due to Crew Illness

If an airline denied your EC 261 compensation and cited crew illness, a pilot being unfit to fly, or a similar staffing issue as their justification, you have a strong basis to challenge that rejection.

Step 1: Request the Full Rejection Explanation in Writing

If you haven't already, get the airline's rejection in writing. You need to know exactly what they cited. Phrases like "operational reasons," "internal reasons," or "staff unavailability" are typically code for staff-related issues that the ECJ ruling directly addresses.

Step 2: File a Formal Written Challenge

Send the airline a formal written response citing:

• EC 261/2004, Article 5(3)
• The ECJ ruling in Case C-156/22
• The two-part extraordinary circumstances test
• Your position that staff illness/unavailability does not meet either condition

Keep your tone professional and factual. Airlines have legal teams that recognise this reasoning and will often escalate internally when a passenger cites the correct case law.

Step 3: File a Complaint with Your National Enforcement Body (NEB)

Every EU member state has an NEB responsible for enforcing EC 261. In Portugal, this is the Autoridade Nacional da Aviação Civil (ANAC). In Germany, it's the Luftfahrtbundesamt. In France, the DGAC.

Filing with the NEB is free and costs the airline significant administrative effort. It's a strong lever, especially now that the ECJ has provided clear guidance on this issue.

Step 4: Use a Claim Service with Legal Backing

If you don't want to handle the back-and-forth yourself, a claim service with genuine legal backing can do this for you. This is exactly the type of case where a service matters — because getting your money requires citing the right case law and being willing to escalate.

Not all claim services are equal in this regard. Some will stop at a rejection and mark your claim as unsuccessful. Make sure you use one that will push back legally when an airline's rejection is clearly wrong. FlightOwed handles these cases end-to-end with lawyer supervision.

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TAP Air Portugal and Crew Illness Claims

TAP has been cited by passengers on multiple occasions for using staffing and operational issues — including crew availability — as a basis for rejecting compensation claims. If you've had a claim with TAP Air Portugal rejected on these grounds, the ECJ ruling in C-156/22 directly supports your position.

TAP operates primarily from Lisbon (LIS) and Porto (OPO), and is covered by Portuguese and EU law. Portuguese courts and ANAC apply EU regulations and ECJ case law directly. A formal challenge citing C-156/22 is procedurally straightforward.

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The Bigger Picture: Closing the Loopholes

Airlines have long exploited ambiguity in the extraordinary circumstances definition to avoid paying valid claims. The ECJ has consistently narrowed these loopholes over the years:

• C-549/07 (Wallentin-Hermann): Technical malfunctions don't qualify unless they relate to a hidden defect
• C-195/17 (Hessische Verwaltungsschule): Own-staff strikes don't qualify
• C-74/19 (Transportes Aéreos Portugueses): Airlines must take all reasonable measures to reroute passengers or split crew to restore service
• C-156/22: Crew illness doesn't qualify if the airline lacked adequate contingency staffing

Each ruling chips away at the "extraordinary circumstances" defence and reinforces the basic principle: if you could have planned for it, you should have. If you should have and didn't, you owe your passengers compensation.

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Summary

• The ECJ ruled in Case C-156/22 that crew illness does not automatically qualify as extraordinary circumstances under EC 261/2004
• Airlines must maintain adequate reserve staffing and contingency plans for foreseeable crew unavailability
• Other internal staffing failures — scheduling errors, own-staff strikes, certification lapses — also don't qualify
• Genuine extraordinary circumstances remain: severe weather, third-party ATC strikes, genuine security events
• If your claim was rejected citing crew illness, you have strong grounds to challenge it
• Check your eligibility and challenge the rejection with FlightOwed

For more on what extraordinary circumstances means and how to fight back, read our full Extraordinary Circumstances Guide, What Are Extraordinary Circumstances?, and What Airlines Must Prove — Evidence Guide.

Frequently Asked Questions

What exactly did the ECJ rule about pilot illness and extraordinary circumstances?

The European Court of Justice ruled that sudden pilot illness can constitute an extraordinary circumstance under EC261 — but only if the airline can prove the illness was genuinely sudden, unforeseeable, and that all reasonable measures were taken to find a replacement. Simply saying "the pilot was sick" is not enough; the specific circumstances must be documented and verified.

Why is this ECJ ruling important for passengers?

Because it clarifies that airlines cannot use "pilot illness" as a blanket excuse. Before this ruling, many airlines routinely cited crew illness for any crew-related cancellation or delay, knowing passengers would simply accept the rejection. Courts now require specific, documented evidence — not just a label.

Does this ruling mean all delays caused by crew issues are compensatable?

No — the ruling creates a nuanced framework. Sudden, genuinely unforeseeable illness in a specific crew member can qualify as extraordinary circumstances. But pre-existing conditions the airline should have monitored, scheduling errors that left no backup crew, or crew fatigue from poor rostering are NOT extraordinary circumstances and remain the airline's liability.

How do I challenge a rejection that cites "pilot illness" or "crew unavailability"?

Request the airline's formal documentation: specifically, what illness, when it was diagnosed, what steps were taken to find replacement crew, and why those steps were insufficient to avoid or minimise the delay. If they cannot provide this level of detail — which most cannot — the extraordinary circumstances defence fails.

What other crew-related causes are definitely NOT extraordinary circumstances?

Crew scheduling failures, insufficient crew reserves for peak season demand, crew exceeding duty time limits due to earlier delays, and industrial action by the airline's own staff are all definitively NOT extraordinary circumstances. Courts across the EU have ruled on this repeatedly.

How does the TAP pilot illness ruling affect Portuguese passengers specifically?

TAP Air Portugal frequently cited crew illness and operational issues in its delay and cancellation communications. The ECJ ruling and subsequent Portuguese court decisions have established that vague crew-related excuses do not exempt TAP from EC261 liability. Portuguese passengers have a strong basis to challenge TAP rejections citing crew issues. Check your TAP claim here.

Should I pursue my claim if the airline cited pilot illness and I'm in doubt?

Yes — always. The worst outcome is the airline provides genuine documentation and the claim is legitimately rejected. But in our experience, most airlines citing crew illness cannot produce the specific evidence required by law. Don't let the rejection letter be the final word.