Green Recycling: how to dismantle an end-of-life aircraft to world standards

Dismantling an end-of-life aircraft is not a scrapping operation. It is a controlled, traceable and certified industrial process whose purpose is twofold: returning serviceable spare parts (USM, Used Serviceable Material) to the aviation market and recovering up to 95% of the aircraft's mass as recycled raw materials. Between 2024 and 2042, close to 12,000 commercial aircraft are expected to exit fleets worldwide. Green Recycling becomes a strategic link of the aerospace industry. This article describes, step by step, the complete process against the reference standards: AFRA Best Management Practices, ISO 14001, compliance with ANAC (Algeria), ICAO and foreign authorities (EASA, FAA).

1. The end-of-life aircraft market

The global fleet age pyramid is entering an accelerated renewal phase. Airframers announce delivery of more than 40,000 new aircraft over the next twenty years; mechanically, the other end of the chain — fleet exit — reaches a historical pace. Projections converge around 12,000 commercial aircraft to be dismantled between 2024 and 2042, on average more than 600 aircraft per year, with peaks driven by the definitive retirement of certain generations (quad-engine widebodies, 1990s–2000s narrowbodies).

This flow feeds a market estimated at around USD 5 billion per year for USM parts alone. To this are added revenues from material recycling (aluminium, titanium, copper, specialty steels, composites) and associated services (storage, preservation, retirement engineering, documentation management). The centre of gravity of this activity remains concentrated in North America and Europe today, but the geographic dynamic is shifting: climate, land, energy and operating costs are redrawing the map.

2. Why an aircraft is retired

Several factors, often combined, trigger the decision to permanently retire an aircraft:

• Calendar age: beyond 20 to 25 years, certain aircraft accumulate heavy maintenance costs (C/D checks, structural replacement) that exceed residual value.
• Cycles and flight hours: the airframe has a Design Service Goal expressed in cycles (pressurisations) and hours. Beyond it, additional inspections (Extended Service Goal) become mandatory.
• MSN economics: an individual aircraft (Manufacturer Serial Number) may become unprofitable ahead of its series average due to incidents, costly modifications or non-standard configurations.
• Fleet strategy: harmonisation, withdrawal of a variant, transition to a newer fuel-efficient generation.
• Configuration change: a passenger-to-freighter conversion declined, cabin refurbishment too costly, lease end with no renewal.
• Regulatory developments: noise, emissions, ADS-B and safety equipment requirements whose compliance exceeds the economic threshold.

The decision is rarely binary: an aircraft may be placed in long-term storage before final arbitration between return to service, P2F conversion or teardown.

3. Arrival on site: initial inspection and documentation

The formal process begins as soon as the aircraft is delivered to the dismantling site. An incoming inspection is conducted by the centre's technicians, in the presence of the owner or its representative. It has three goals: confirm the actual condition against the declared condition, identify high-potential USM components, and set the contractual scope of the teardown.

Required documents

No USM-oriented dismantling can begin without a complete documentary chain:

• Aircraft logbook (airframe, engines, APU, landing gear).
• Original Form 1 / 8130-3 for critical components (back-to-birth when required).
• Compliance status with Airworthiness Directives (AD) and Service Bulletins (SB).
• Incident history: hard landings, lightning strikes, significant FOD events.
• Applicable manuals: AMM, IPC, CMM of targeted components.

The physical inspection verifies external integrity, bay condition, presence of dataplates, and consistency between installed serial numbers and documentation. Any discrepancy is logged in an incoming report that becomes a cornerstone of the file.

4. Decontamination: mandatory before any disassembly

Decontamination is the most environmentally sensitive step. It conditions the site's ISO 14001 compliance and operator safety. All fluids, gases and hazardous substances must be evacuated before any structural cut.

• Fuel: complete draining of wing and centre tanks, vapour neutralisation.
• Oils from engine, APU, IDG, hydraulic systems: recovery in sealed containers, sorted by category.
• Hydraulic fluids (Skydrol and phosphate-ester equivalents): specific treatment due to toxicity.
• Fire suppression agents: recovery of halon (high global-warming-potential gas, under international quota) and portable extinguishers.
• Oxygen: neutralisation of crew and passenger bottles, careful thermal handling of chemical generators (PSU).
• Potable and waste water: purging and disinfection of circuits.
• Batteries: removal and routing to dedicated channels (Ni-Cd, Li-ion).
• Potential radioactive substances (old smoke detectors, instruments): regulated treatment.

Decontamination is accompanied by a detailed log: recovered volume, treatment channel, hazardous-waste tracking documents. This file is kept for the legal duration and is auditable.

5. Disassembly: recovering high-value USM components

Once the aircraft is secured, disassembly begins with the components of highest unit value, capable of being returned to service after inspection and certification. The order is dictated by accessibility, sensitivity to damage and market value.

Priority components

1. Engines and their LRU (Line Replaceable Units): FADEC, starters, fuel and oil pumps, ECU, accessories.
2. APU (Auxiliary Power Unit) and accessories.
3. Landing gears, main and nose: legs, actuators, brakes, wheels.
4. Flight controls and movable surfaces: ailerons, elevators, rudder, flaps, slats, spoilers.
5. Avionics and computers: FMS, IRS, ADIRU, engine and system computers, radios, transponders, TCAS, GPWS.
6. Cockpit instruments, displays, panels, thrust levers.
7. Systems: pumps, valves, heat exchangers, air-conditioning packs, generators, converters.
8. Interiors: seats (notably business class), galleys, lavatories, bins, belts, safety devices.

Teardown phases

Phase	Indicative duration	Deliverables
1. Incoming inspection and documentation	1 to 2 weeks	Incoming report, inventory
2. Full decontamination	2 to 3 weeks	Fluid logs, waste tracking
3. Removal of engines / APU / gears	2 to 4 weeks	Components ready for inspection
4. Removal of LRUs / avionics / interiors	4 to 6 weeks	Traced parts, files
5. Structural cutting and material sorting	3 to 5 weeks	Aluminium, titanium, composites
6. Documentary closure and audit	1 to 2 weeks	Final dossier, certificate

A complete narrowbody teardown typically runs three to five months; a widebody can require six to nine months depending on recovery depth.

6. USM traceability: from back-to-birth to dual release

A USM part's value rests on its traceability. A component without a complete file cannot be reinstalled, regardless of its physical condition. The dismantler therefore plays the role of a documentary trusted third party.

Traceability levels

• Back-to-birth: complete history since factory delivery, required for life-limited parts (LLP) — typically engine disks and certain structural elements.
• Last operator: history limited to the last operator, acceptable for parts without life limit subject to inspection.
• Removal tag: removal label certifying the removal conditions (in service, after fault, no damage).

Release certificates

After inspection in an approved workshop, a USM part is returned to the market with a release certificate. Depending on the reference authority of the future operator:

• ANAC (Algeria) for national operators;
• EASA Form 1 for Europe;
• FAA 8130-3 for the United States;
• Dual release EASA/FAA for the global market.

These documents are issued by the approved repair station (Part-145 or equivalent), not by the dismantler. The chain is thus structured: dismantler → repair station → final operator.

7. Material recovery: aluminium, titanium, composites

Once high-value USM components are extracted, the remaining airframe is cut for material recovery. Alloy separation is essential because downstream channels (foundries, rolling mills) only accept sorted batches.

• Aluminium alloys 2024 (skin, stringers) and 7075 (frames, forged parts): dismantled, identified, separated by grade.
• Titanium (pylons, critical fasteners, engine parts): high value, rigorous sorting.
• Specialty steels and high-performance alloys from landing gears.
• Copper from electrical wiring: recovered after automated stripping.
• Carbon composites and fibres: channel in structuring phase, valorisation via grinding and reuse in secondary materials.
• Rare earths from electronic boards: tantalum, neodymium, indium, processed by specialised channels.
• Engineering plastics, glass, foams: selective sorting.

The material recovery rate reaches 85 to 90% by mass. Combined with USM components returned to market, the total landfill-avoidance rate exceeds 95% on a site compliant with best practices.

8. The AFRA Best Management Practices standard

The Aircraft Fleet Recycling Association publishes an international reference, the Best Management Practices (BMP), which constitutes the standard recognised by airframers, lessors and insurers. AFRA accreditation rests on four pillars:

1. Safety of operators and operations.
2. Environment: management of fluids, waste, soils, waters.
3. Traceability: documentation, part identification, marking integrity.
4. Quality: procedures, training, internal and external audits.

The AFRA audit is conducted by independent auditors, first on file then on site. Maintaining accreditation imposes surveillance audits and periodic reviews. Accredited actors commit to target recovery rates between 90 and 95%.

"Dismantling is no longer a peripheral activity: it is one of the levers of circularity for global aerospace." — AFRA Best Management Practices reference.

9. ISO 14001: environmental management and waste handling

Beyond the sectoral AFRA standard, a Green Recycling site must operate within an environmental management system certified to ISO 14001. This cross-cutting standard requires:

• systematic identification of environmental aspects and impacts;
• a documented environmental policy validated by management;
• measurable objectives (recovery rate, water and energy consumption, emissions);
• written operating procedures for each sensitive operation;
• compliant waste management: sorting at source, registers, approved channels;
• treatment of stormwater and process water (oil separators, retention ponds);
• internal audits and periodic management reviews.

The whole is aligned with Algerian regulations on environmental protection and industrial waste management, under supervision of the competent authorities.

10. Algeria's specific contribution

Southern Algeria presents a bundle of assets for Green Recycling activity:

• Dry climate and low humidity: favourable conditions for preserving materials during teardown, which can stretch over several months; risk of corrosion on exposed components is reduced.
• Wide and flat land, allowing teardown aprons, component buffer storage and logistics zones without footprint constraints.
• Sovereign energy: competitive electrical availability, solar potential to cover site consumption.
• Geographic position at the crossroads of Europe – Africa – Middle East flows, shortening ferry routes.
• Regulatory framework structured by ANAC (Algeria) in coordination with ICAO standards and EASA / FAA practices for USM export.
• Human capital: presence of trained aerospace engineers and technicians, a foundation on which to grow specialised skills.

11. The AéroNéo Green Recycling project

AéroNéo is in a pre-launch phase. The project plans the development of a site of approximately 300 hectares in southern Algeria, integrating long-term storage, P2F conversion, heavy maintenance and Green Recycling functions. The roadmap includes:

• initiation of steps toward AFRA Best Management Practices accreditation;
• implementation of an ISO 14001 management system from opening;
• agreements with partner Part-145 workshops for USM component release to service;
• structuring of downstream channels for material recovery (aluminium, titanium, composites);
• a continuous training programme for dismantling and documentary traceability technicians.

The operational target aims for a total recovery rate above 95%, consistent with global best practices. All operations will be conducted under ANAC supervision for airworthiness aspects, and in compliance with Algeria's international environmental commitments.

In summary

Dismantling an end-of-life aircraft is a complete industrial chain: inspection, decontamination, selective disassembly, documentary traceability, return to service in approved workshops, material recovery. Compliance with AFRA Best Management Practices and ISO 14001 ensures that each aircraft is treated as a resource, not as waste. Algeria has the assets to become a regional reference in this aerospace circularity sector.