Aircraft Cleaning Standards

Cleaning an aircraft isn’t like cleaning anything else. The regulations are strict, the product restrictions are real, and getting it wrong can ground a plane. If you’re an aircraft owner, operator, or charter company, here’s what the cleaning standards actually require.

Regulatory Framework

In the UK, aircraft maintenance and cleanliness fall under the Civil Aviation Authority (CAA). The European Aviation Safety Agency (EASA) standards also apply, as much of the UK regulatory framework mirrors EASA requirements post-Brexit.

The key regulations touching on cleaning:

CAA CAP 748 covers aircraft maintenance requirements. While it focuses on engineering, cleanliness is considered part of aircraft maintenance. A dirty aircraft isn’t just an aesthetic problem. Corrosion from uncleaned surfaces, blocked drains from debris, and contaminated air systems from dirty filters are all maintenance issues.

EASA Part-CAMO (Continuing Airworthiness Management Organisation) requires operators to maintain aircraft in an airworthy condition. Interior cleanliness is part of that obligation, particularly around emergency equipment access, exit markings, and floor path lighting.

Manufacturer guidelines carry significant weight. Bombardier, Gulfstream, Dassault, Embraer, and others all publish approved cleaning procedures and product lists for their aircraft. Deviate from these at your peril. Using a non-approved product that damages an interior component could void the warranty and create an airworthiness issue.

None of this means you need an aerospace engineer to wipe down seats. But it does mean the person cleaning needs to know what they’re doing, what products are approved, and what to avoid.

Product Restrictions

This is where most general cleaning companies fall down. Aircraft interiors are not like houses, offices, or even cars.

No ammonia-based products. Ammonia damages acrylic windows, attacks certain plastics, and can corrode aluminium fittings. That rules out most household glass cleaners and many all-purpose sprays.

No silicone-based products. Silicone causes adhesion problems for paint and sealants. If silicone residue gets onto surfaces that later need repainting or bonding, the work fails. Some operators ban silicone products entirely from their hangars.

No abrasive cleaners. Aircraft interior surfaces have specialist coatings. Worktop-style cream cleaners or scouring products will damage them permanently.

No bleach on metal surfaces. Chlorine attacks aluminium and its alloys. Given how much aluminium is in an aircraft, this is a hard no.

pH restrictions. Most approved products are pH neutral or very close to it. Strongly acidic or alkaline cleaners attack coatings, leather treatments, and metal finishes.

Solvent restrictions. Many common solvents damage plastics, rubbers, and seals. MEK, acetone, and similar solvents are restricted to specific engineering applications only. They’re not for cleaning.

Honestly, I’ve seen well-meaning cleaning companies cause thousands of pounds of damage to aircraft interiors because they used the same products they’d use in a kitchen. Hazing on acrylic windows from ammonia. Leather discolouring from an inappropriate cleaner. It’s an expensive mistake.

The approved products exist for good reason. They clean effectively without damaging the specific materials found in aircraft. Yes, they cost more than supermarket spray bottles. That’s the price of doing it right.

Interior Standards

What does a properly cleaned aircraft interior look like?

Seating. Leather seats cleaned with approved leather cleaner, conditioned to prevent cracking and fading. Fabric seats vacuumed and spot-cleaned. Seat mechanisms wiped and checked for smooth operation. Headrest covers clean and free of staining.

Carpet and floor coverings. Vacuumed thoroughly. Spot stains treated. Floor-path lighting and exit markings visible and unobstructed. This last point is a regulatory requirement, not a cosmetic preference.

Galley. All surfaces cleaned and sanitised. Coffee maker descaled. Ovens and warming drawers cleaned inside and out. Countertops wiped. Storage compartments emptied and cleaned. Sink and drain cleared.

Lavatory. Deep cleaned and sanitised after every use cycle. Vanity surfaces spotless. Mirror clean. Waste system serviced. Fresh supplies stocked.

Windows. Cleaned with approved acrylic-safe cleaner. No scratching. No chemical hazing. Internal window shades dust-free and operating smoothly.

Woodwork. Aircraft veneers are specialist items. Cleaned with appropriate products only. Never use furniture polish designed for domestic use. Aircraft veneer finishes are different and need different care.

Overhead panels and sidewalls. Wiped down. Light controls clean and functional. Air vents clear and clean.

Bristol Airport handles a growing number of private and charter aircraft through its executive aviation facilities. The standards expected there match what you’d find at any major FBO in Europe.

Cleaning Frequency

How often an aircraft interior needs cleaning depends on usage, but here are industry norms:

After every flight or flight cycle: Quick turnround clean. Vacuum, wipe surfaces, clean galley and lavatory, remove rubbish, restock supplies. 30-60 minutes depending on aircraft size.

Weekly (for active aircraft): More thorough interior clean. Leather conditioning, carpet shampooing as needed, galley deep clean, full wipe-down of all surfaces including overhead panels.

Monthly: Detail clean. Everything gets attention. Seat rails cleaned. Under seats vacuumed. Window surrounds detailed. All storage compartments emptied and cleaned.

Quarterly: Deep clean. Carpet extraction cleaning. Full leather treatment cycle. Galley equipment deep cleaned. Exterior wash if not done more frequently.

Annually: Full interior refurbishment clean. This is the big one. Every surface deep cleaned, conditioned, and protected. Combined with an exterior detail.

Aircraft that fly less frequently still need regular cleaning. Dust, humidity, and temperature cycling affect interiors even when the aircraft isn’t moving. A hangar-kept aircraft that flies twice a month still needs monthly attention.

We’re developing our aircraft cleaning capability from our base at BS10 5EN. We bring 25 years of specialist cleaning experience, £2 million insurance, and a willingness to learn from and work within the aviation regulatory framework.

Call 07985 505061 or email hello@bristolcleaningheroes.co.uk to discuss your aircraft cleaning requirements.