Exterior Dry Wash at EuroAirport Basel-Mulhouse-Freiburg (LFSB)

Why choose a dry wash over a traditional water rinse at this airport?

EuroAirport sits at the intersection of three countries, and the binational structure means coordination with both French and Swiss authorities. Air Service Basel operates in the Swiss sector, where water-discharge rules and apron protocols differ from those on the French side. A dry wash eliminates the need for wash-bay scheduling, runoff containment and the paperwork that accompanies cross-border waste handling. You call PPR, we arrive with our own kit, and the aircraft stays on stand.

Rinseless chemistry has matured to the point where it lifts the same contaminants—insect protein, turbine soot, anti-ice residue, hydraulic mist—that a pressure rinse would remove, but without introducing moisture near static ports, pitot probes or the avionics cooling vents common on super-midsize and larger airframes. For fleets that track wash intervals by flight hours rather than calendar days, the dry method also means you can clean between legs without waiting for the belly to dry or worrying about cold-soaked fuel tanks sweating onto fresh polish.

What does the handler expect when a third-party detailing crew arrives?

Handling agents present at the airport will ask for proof of airside-escort arrangements, liability cover and sometimes a method statement if you are new to the field. We hold our own airside pass for the Swiss sector and coordinate directly with Air Service Basel's ground team, so the handler sees us as an extension of the turnaround rather than an unknown variable. If you are arriving from outside Schengen or your slot is tight, let your dispatcher know we will be on the apron; it saves the handler a round of calls and keeps the GPU and air-start cart positioned where they need to be.

Handlers also expect us to leave no trace—no overspray on the stand markings, no residue on the tug or ground-power cables, no solvents pooling near the drain grates. We lay absorbent mats under the belly during the degrease, collect used towels in sealed bags and photograph the stand before we leave. That discipline matters when the same aircraft returns a month later and the FBO manager remembers the last contractor left a sheen on the apron.

What changes at EuroAirport Basel-Mulhouse-Freiburg that affect the wash?

The field sits at 885 feet, close enough to the Rhine valley that morning fog and low cloud are common from October through March. Moisture condenses on cold airframes, and if the aircraft has been cold-soaked overnight the fuselage will sweat for an hour after you apply GPU power. We time the wash to start once the skin temperature stabilises, otherwise the rinseless product streaks and you waste a second pass.

Two runways—15/33 at 3 900 metres and the shorter 07/25—handle a mix of scheduled narrowbodies and business traffic. Air Service Basel's apron lies in the Southwest Maintenance Area, far enough from the active taxiway that jet blast is not an issue, but close enough that we hear slot calls over the radio. If the field is busy and your aircraft is due to reposition within three hours, we prioritise the belly and nacelles first so that if the wash must pause for an early push, the areas most visible on walk-around are already clean.

The binational structure means customs and handling formalities can take longer than at a single-jurisdiction airport, especially if crew or passengers are moving between the French and Swiss sectors. Build that time into your ground stop; a dry wash on a super-midsize takes four to five hours, and if the slot moves forward by thirty minutes we would rather finish properly than leave the winglets half-done.

How does Basel's climate affect paint and the wash schedule?

The Rhine valley traps humidity, and from late autumn through early spring the combination of damp air and industrial particulate from the chemical corridor around Basilea leaves a grey film on white fuselage paint within two weeks. Bug strikes are heaviest May through September, when the aircraft descends through the inversion layer and collects protein on the leading edges, nacelle inlets and windscreen. If you fly a regular Basel–Moscow or Basel–Dubai rotation, that leading-edge buildup becomes aerodynamically significant and the chief pilot will want it documented in the tech log.

Winter brings de-icing: Type I glycol on the fuselage, Type IV on the wings if holdover time matters. Both leave a sticky residue that attracts soot and road salt thrown up by ground vehicles. A dry wash two days after a de-icing event removes that film before it bakes on, and the rinseless product is pH-neutral so it will not strip the wax or hydrophobic coating you applied during the last compound-and-seal cycle.

What goes into the documentation and photo report?

We shoot the aircraft from eight angles before we touch it—nose, tail, both sides, both winglets, belly and any area the captain or dispatcher flags in the work order. Those images go into a cloud folder with the registration, date and stand number burned into the metadata. After the wash we shoot the same angles again, then add close-ups of any paint chips, leading-edge nicks or belly stains that did not lift. The report lands in your inbox within two hours of sign-off, and if you are part of a managed fleet the same file goes to your appearance-program coordinator.

Why the rigour? Because when a charter broker questions an invoice, or a new client asks what condition the aircraft was in before your company took over management, or an insurance adjuster wants to know whether a belly dent happened last week or last year, the photo record answers the question. We have seen operators avoid five-figure disputes simply because they could prove the cheat line was already crazed when the aircraft arrived at Basel three months earlier.

What happens if the aircraft is AOG or the schedule compresses?

An AOG callout at EuroAirport usually means a tech issue discovered during turnaround, and the handler will ask whether the wash can proceed while the engineer works. If the fault is forward—avionics bay, nose gear, windscreen seal—we start aft and work around the open panels. If it is an engine or APU problem and the nacelles are open, we defer those areas and finish the rest, then return once the cowlings are closed. The dry method helps here: no hoses, no overspray, no risk of water migrating into an open access panel.

When the schedule compresses—slot moved forward, payload increased, dispatcher needs wheels-up thirty minutes early—we triage. Fuselage, exterior windows and the areas visible during walk-around come first. Belly and gear bays are next, because that is what the receiving FBO will photograph when the aircraft lands. Winglets and the top of the empennage are last; they matter for the monthly inspection, but not for an urgent repositioning leg. We have turned around a super-midsize in two and a half hours when the operator needed it, and the photo report will show exactly which areas were completed.