Brightwork Polish at Nürnberg (EDDN)

Why does brightwork oxidise faster on European routes?

Bare aluminium and stainless trim oxidise whenever moisture, industrial pollutants and de-icing salts sit on the surface. Winter operations accelerate the process: Type I and Type IV fluids leave a hygroscopic film, coastal humidity condenses on cold-soaked metal during descent, and apron wash-water carries enough chloride to start pitting within weeks. Leading edges take the hardest punishment because they meet the airstream first, so any surface contamination is driven into the grain at speed.

We remove the oxidation by hand-polishing each surface with progressively finer compounds, then apply a polymer sealant that fills the microscopic peaks and slows moisture ingress. The result is a mirror finish that reflects the ramp lights in a clean line. Sealant durability depends on flight hours and whether the aircraft sees regular rinseless washes between details; most operators schedule brightwork two to four times a year, or include it in a complete detail when cabin and exterior work coincide.

What changes at Nürnberg?

Nuremberg sits at 1,044 feet elevation, five kilometres north of the city centre, with a single runway—10/28, 2,700 metres—that handles everything from turboprops to widebody cargo. The airport is licensed for 24/7 operations, unusual among German city airports, and AirPart GmbH staffs the General Aviation Terminal around the clock. The GAT desk is open Monday to Friday 06:00–21:30 and weekends 08:30–18:00, but because handling cover continues overnight the ramp remains accessible for third-party maintenance and detailing crews at any hour. That makes Nuremberg one of the few hubs in Bavaria where we can start a polish after a late arrival and finish before an early departure slot the next morning.

Nuremberg is a Level 2 schedules-facilitated airport; business aviation does not require a slot, though a Prior Permission Request form is published for airline and GA operators. AirPart holds IATA AHM 804 and ISAGO certification, so their ground-handling procedures align with the expectations of most flight departments. When we coordinate a brightwork turnaround, the handler expects a simple briefing: aircraft type, stand assignment, GPU requirement, and whether we need an airside escort or will use our own pass. They do not manage the polish itself—that stays between the operator and our crew—but they do control apron access and will ask for an estimated completion time so they can plan any subsequent fuel or catering truck movements.

How do you schedule brightwork around a Nürnberg turnaround?

If the aircraft overnights, we typically begin two hours after block-in, once the cabin crew have deplaned and the handler has positioned a GPU. Leading edges and inlets can be polished under ramp lighting; exhaust work sometimes needs portable floods if the stand faces away from the terminal. A single-engine super-midsize—say, inlet rings, spinner caps and wing leading edges—takes twelve to sixteen hours, so an arrival before 20:00 and a departure after 10:00 the next day leaves enough margin. For a twin-engine ultra-long-range jet with full inlet ducts, exhaust petals and nacelle brightwork, we ask for two overnights or a longer maintenance window.

Day stops are possible when the scope is narrow: spinner caps and window surrounds on a light jet, or touch-up polishing on leading edges that were detailed three months earlier. We have completed those jobs in four to six hours between a morning arrival and an evening departure. The constraint is not the ramp—Nuremberg's 24/7 licence means no curfew pressure—but whether the handler can hold the stand. If AirPart needs the aircraft moved to long-term parking, we follow it there and work on the remote stand, though that adds thirty minutes to setup and breakdown.

What does the handler need from a third-party detailing crew at EDDN?

AirPart expects a written work order or email from the operator naming the service provider, listing the tasks, and confirming that the crew holds valid airside passes or will be escorted. If we are new to the aircraft, they ask for a copy of our liability insurance certificate and a contact number for the captain or flight-department manager. Once that paperwork is in the GAT office, the handler issues a stand assignment and confirms GPU availability.

On the day, we check in at the General Aviation Terminal—Flughafenstr. 100, telephone +49 911 937 1576—collect any additional badges, and drive airside in our own van or ride with the handler's escort. We bring our own polishing compounds, microfibre bonnets, sealants and portable work-lights; the only utility we draw from the ramp is 400 Hz or 28 V DC if the aircraft's APU is not running. At the end of the job we photograph the brightwork under natural light, update the tech log if the captain requests it, and leave a one-page completion sheet with AirPart so the next crew knows the work was done. The handler appreciates a thirty-minute heads-up before we finish, because that lets them queue the refueller or catering truck without waiting on the stand.

Do operators use Nürnberg for recurring brightwork or one-off stops?

Both patterns appear. Fleet operators with German principal bases—Munich, Stuttgart, Cologne—sometimes rotate aircraft through Nuremberg for scheduled brightwork because the 24/7 handling and central Bavarian location mean less downtime than flying empty to a coastal maintenance facility. A super-midsize on a six-week wash cycle might overnight at EDDN every fourth month for leading-edge polish and belly decon, then return to its home base the next morning.

Charter operators use Nuremberg more opportunistically: if an aircraft shows tarnished inlets or exhaust staining during a pre-flight walk-around in Frankfurt or Vienna, and the next leg has a Nuremberg stop, the flight department will ask us to meet the jet on the GAT ramp and polish the visible surfaces before the principal passengers board. Those calls usually come twenty-four to forty-eight hours ahead, which is enough notice to position our crew and confirm the turnaround window with AirPart. The city's proximity—five kilometres from the centre—also means that if a delay pushes the departure back by half a day, the passengers can wait in town rather than in the terminal, and we gain the extra hours we need to finish nacelle brightwork properly.

What about winter and de-icing at Nuremberg?

Nuremberg sees snow and freezing rain from December through February, and AirPart maintains a Type I and Type IV de-icing pad near the GAT. Holdover times are calculated in the usual way, but the fluids—especially Type IV—leave a sticky glycol film on leading edges, inlets and any polished trim. If we detail an aircraft in November and it flies a heavy Central European winter schedule, the brightwork will show a hazy residue by March even if the operator has been diligent about rinseless washes. We recommend a post-winter polish in early spring to strip the glycol layer and re-seal the metal before the summer flying season.

One caution: if the aircraft arrives cold-soaked and we begin polishing immediately, condensation will bead on the aluminium and dilute the compound. We either wait thirty minutes for the surface temperature to equalise or ask the handler to run a GPU and cabin heat so the skin warms gently. Polishing cold metal produces a duller finish and the sealant will not bond correctly, so the extra half-hour is worth the result. AirPart's night crew understand the issue and will coordinate GPU timing without prompting once they have seen us work through a winter turnaround.