On July 13, 2026, inspectors at Tokyo Haneda Airport found a roughly 20-centimeter cavity in Runway C — not a hairline crack, but a hole. Japan’s transport ministry pointed to a familiar cause: moisture trapped in existing cracks expanded under prolonged heat until the asphalt gave way. The runway closed, repairs ran more than two and a half hours, and delays cascaded into the evening.
It’s a vivid example, but it isn’t really an aviation story. It’s a pavement story — and this summer, pavement is having a hard time everywhere.
2026 Is Shaping Up to Be One of the Hottest Years on Record
Copernicus Climate Change Service data confirmed June 2026 as the warmest June ever recorded in Western Europe, with temperatures running up to 8°C (14°F) above the 1991–2020 average. Spain hit 45.1°C (113°F). Germany set a provisional national record at 41.7°C (107°F). More than 1,500 daily temperature records fell across 40 U.S. states by early July.
We’re not raising an alarm here so much as making an observation: it’s hot, it’s been hot for a while, and that has practical consequences for anyone who operates on a paved surface. That includes just about every customer we work with.
Why Heat Matters for Any Paved Surface
The relevant number isn’t air temperature — it’s surface temperature. Asphalt and concrete absorb solar radiation far more aggressively than the surrounding air. When the air reaches 31°C (88°F), pavement regularly measures 60°C (140°F) or higher. Push into the mid-30s, as much of the Northern Hemisphere did this summer, and surfaces can approach 65–70°C (149–158°F).
At those temperatures, materials behave differently. Asphalt binders soften. Concrete slabs load up with thermal stress. And that’s true whether the pavement is a runway, a racetrack, a military apron, or a manufacturing yard. A Formula-level circuit baking in August sun faces the same physics as a commercial taxiway; a flight line at a desert airbase and a logistics yard behind a plant are both absorbing the same punishment. Heat doesn’t check what the surface is used for.
How Heat Turns Pavement Into a FOD Source
Pavement doesn’t have to visibly buckle to produce foreign object debris (FOD). Heat generates loose material through several quiet mechanisms, and each can deposit hazards between scheduled inspections.
Raveling. High temperatures accelerate oxidative aging in asphalt binders, which later turn brittle. Aggregate then separates from the surface — individual stones migrating loose with no dramatic failure to announce them. On a racetrack that’s a tire and safety risk; on a runway it’s an ingestion risk; the loose stone is the same.
Rutting and surface tearing. Softened asphalt deforms under repeated loads. Ruts form, and the shear forces involved tear loose chunks of asphalt mastic that following traffic scatters across the surface.
Concrete joint spalling. Concrete doesn’t soften, but it cracks and spalls under thermal stress. Temperature gradients through a slab create tensile forces that exceed the material’s capacity, and fragments break loose at joints. Expansion-joint material can fail under sustained heat cycling and eject debris of its own.
Moisture-driven failure. This is the Haneda mechanism. An existing crack becomes a moisture pathway; under sustained heat, trapped moisture expands and weakens the surrounding pavement. A crack that looked stable at the last inspection becomes a debris-generating cavity mid-operation.
Together, these mechanisms accelerate the rate at which extreme heat pavement FOD appears on active surfaces.
Standard Programs Weren’t Calibrated for This
Most FOD programs — at airports, tracks, and industrial sites alike — assume a relatively stable pavement baseline. Inspection cadences reflect expected degradation rates. Record heat simply moves faster than calendar-based planning allows.
Overnight temperatures compound it. Pavement that experiences record overnight minimums never fully cools between heat cycles, so structural fatigue accumulates faster than usual — damage that would normally develop over seasons can compress into weeks.
The FAA’s guidance on pavement maintenance directly links timely crack sealing to FOD prevention — unsealed cracks let moisture in, which is exactly the sequence that failed at Haneda. The principle travels well beyond aviation: on any surface, heat-accelerated degradation can open new cracks faster than scheduled maintenance closes them.
Adjusting for Heat Season — Wherever You Operate
Recalibrating for extreme heat doesn’t mean reinventing your operation. It means adjusting timing, attention, and removal readiness around a heat-specific risk profile. The changes are targeted, not wholesale.
Inspect more often during heat events. If your standard cadence is once per shift, consider twice when temperatures stay above 35°C (95°F). Morning inspections after a hot day matter too — fatigue damage often shows up overnight as temperatures swing.
Prioritize high-stress zones. Touchdown zones, racing lines, braking areas, full-sun aprons, and heavily trafficked yard lanes carry the highest combination of thermal load and mechanical stress. Any known crack or joint deficiency in those areas belongs at the top of the queue when temperatures spike.
Coordinate with maintenance. Repair work is itself a FOD source — sealant, aggregate, and patching material shed debris. Looping in your FOD team before and after maintenance ensures a coordinated sweep before the surface reopens.
Keep rapid removal ready. Heat-driven FOD arrives without a trigger event — it’s simply debris that wasn’t there at the last check. A friction sweeper like the FOD-Razor® gives you that rapid-response layer across paved environments: towed behind any standard vehicle, deployed by a single operator. When heat throws unexpected debris onto a surface, fast removal keeps a manageable find from becoming a costly incident.
Treat It as a Trend, Not an Anomaly
The observation worth holding onto is a simple one: this kind of summer is becoming more common, and heat acts on every paved surface an operation depends on. The organizations that treat 2026 as a one-off will likely be caught out again; the ones that fold heat into their normal risk planning won’t.
The adjustments are straightforward — inspect a little more often, watch the high-stress zones, coordinate with maintenance, and keep removal capability ready. They fit into any FOD prevention program, at any facility, without a major overhaul. The harder part is just recognizing that a program calibrated for last decade’s climate deserves a second look for this one.
Key Takeaways
- 2026 is shaping up to be one of the hottest years on record, and paved surfaces regularly exceed 60°C (140°F) in these conditions — the point where asphalt binders soften and thermal stress on concrete climbs.
- Heat generates FOD through raveling aggregate, surface tearing, concrete joint spalling, and moisture-driven failure — none of which require a visible incident to leave loose debris behind.
- The risk applies to every paved environment: runways, taxiways, and aprons, but also racetracks, military airfields, and manufacturing yards.
- Heat-accelerated degradation outpaces calendar-based inspection schedules, so debris can appear in areas that were clean on the last walk.
- During and after heat events: inspect more often, prioritize high-stress zones, coordinate with maintenance, and keep sweeping capability ready to deploy.
Want to make your FOD response more heat-resilient before the next hot stretch? Contact FOD Control to talk through sweeping solutions for your surfaces — or download the free FOD Prevention Booklet to build a stronger inspection and removal plan.
