Hiring and Sponsoring Aircraft maintenance and related trades (SOC Code 5234)

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Aircraft maintenance and related trades fall under SOC Code 5234, covering skilled workers who inspect, repair, overhaul and test aircraft engines, airframes and related components. If you are a UK employer looking to sponsor overseas workers in this occupation, understanding the eligibility criteria, salary thresholds and sponsorship process is essential before making a hire.

For related support, explore Annaizu’s sponsorship compliance software, mock audit inspection readiness and mock audit preparation.

For 2026 checks, cross-check the latest GOV.UK immigration skills charge before making sponsorship or visa decisions.

Key Takeaways

Essential Points for Employers

• SOC Code 5234 covers aircraft maintenance engineers, avionics technicians and related trades involved in the upkeep and repair of aircraft.
• This occupation is eligible for the Skilled Worker visa, allowing UK employers to sponsor overseas nationals.
• Employers must hold a valid sponsor licence and assign a Certificate of Sponsorship before a worker can apply.
• Salary thresholds and going rates apply and must be met for each sponsored worker.
• Aviation maintenance roles often require specific licences and qualifications recognised by the Civil Aviation Authority (CAA).

What Is SOC Code 5234?

SOC Code 5234 refers to aircraft maintenance and related trades within the Standard Occupational Classification system used by the UK Home Office. Workers in this category are responsible for maintaining, repairing, overhauling and testing aircraft and their components to ensure airworthiness and compliance with aviation safety standards.

Roles Covered Under SOC 5234

• Aircraft maintenance engineer
• Avionics technician
• Aircraft engine mechanic
• Airframe and powerplant technician
• Aircraft inspector
• Line maintenance technician
• Base maintenance technician

What These Workers Do

Workers in this occupation carry out a range of tasks that keep aircraft safe and operational. Their duties typically include inspecting aircraft structures, engines and systems, diagnosing faults, replacing or repairing components, performing scheduled maintenance checks, completing technical documentation and ensuring compliance with CAA and EASA regulations.

Is SOC 5234 Eligible for the Skilled Worker Visa?

Yes. Aircraft maintenance and related trades under SOC Code 5234 are eligible for the Skilled Worker visa. This means UK employers with a valid sponsor licence can sponsor overseas workers to fill roles in this occupation, provided all eligibility criteria are met.

Skilled Worker Visa Eligibility Requirements

To sponsor a worker under SOC 5234, the role and candidate must meet the following core requirements:

• The employer must hold a valid Skilled Worker sponsor licence.
• The job must be assigned a valid Standard Occupational Classification code - in this case 5234.
• The worker must have a confirmed job offer from a licensed sponsor.
• The role must meet the minimum salary threshold.
• The worker must meet the English language requirement.
• The worker must score 70 points under the points-based system.

Salary Thresholds for SOC Code 5234

All Skilled Worker visa applications must meet salary requirements set by the Home Office. For SOC Code 5234, employers must pay whichever is the higher of the general threshold or the occupation-specific going rate.

Current Salary Requirements

• The general minimum salary threshold for the Skilled Worker visa is £41,700 per year.
• New entrants to the labour market may qualify for a reduced threshold of £33,400 per year.
• The going rate for SOC 5234 must also be checked against the Home Office's published occupation pay data.
• Employers must pay the higher of the general threshold or the applicable going rate.

New Entrant Rate

A reduced salary threshold may apply if the worker is a new entrant. This applies to workers who are under 26 at the time of application, are switching from a student or graduate visa, or are in the first year of a recognised professional development programme. The new entrant threshold is 70 percent of the standard going rate for the role.

Qualifications and Licences Required

Aircraft maintenance is a highly regulated occupation. In addition to meeting immigration requirements, workers in SOC Code 5234 roles are typically expected to hold relevant technical qualifications and, in many cases, licences approved by the UK Civil Aviation Authority.

Common Qualifications and Certifications

• Part-66 Aircraft Maintenance Licence (AML) issued or recognised by the CAA
• BTEC or NVQ qualifications in aircraft engineering or avionics
• Apprenticeship completion in aerospace engineering
• Type ratings for specific aircraft models
• Relevant experience with military, commercial or general aviation operators

CAA Recognition of Overseas Qualifications

Overseas workers holding maintenance licences issued in other countries may need to have their qualifications assessed and converted by the UK CAA before they can work on UK-registered aircraft. Employers should confirm this with the CAA before proceeding with a sponsorship application.

How to Sponsor a Worker Under SOC 5234

If you are a UK employer looking to sponsor an overseas worker in an aircraft maintenance role, you will need to follow the standard Skilled Worker sponsorship process.

Step-by-Step Sponsorship Process

1. Apply for a Skilled Worker sponsor licence if you do not already hold one.
2. Identify the correct SOC code for the role - in this case, 5234.
3. Confirm the role meets the salary threshold and going rate requirements.
4. Carry out a Resident Labour Market Test if required (though this is not mandatory for most Skilled Worker roles).
5. Assign a Certificate of Sponsorship (CoS) to the worker using the Sponsor Management System (SMS).
6. The worker applies for their Skilled Worker visa, referencing the CoS number.
7. Once the visa is granted, comply with ongoing sponsor duties including monitoring attendance and reporting changes to the Home Office.

Sponsor Licence Requirements

To obtain and maintain a sponsor licence, employers must demonstrate that they are a genuine UK business, have appropriate HR systems in place to carry out sponsor duties, and are capable of meeting compliance obligations. The Home Office may carry out pre-licence checks or unannounced audits at any time.

Immigration Costs for Sponsoring SOC 5234 Workers

Sponsoring an overseas worker involves a number of fees that employers should budget for in advance.

Key Costs to Consider

• Sponsor licence application fee: £536 for small or charitable sponsors; £1,682 for medium or large sponsors.
• Certificate of Sponsorship fee: £239 per worker.
• Immigration Skills Charge: £364 per year for small sponsors; £1,000 per year for medium and large sponsors.
• Visa application fee paid by the worker, which varies by length of stay.
• Immigration Health Surcharge paid by the worker at £1,035 per year.

Who Pays What

Employers are responsible for the sponsor licence fee, the CoS fee and the Immigration Skills Charge. It is illegal for employers to pass the Immigration Skills Charge on to sponsored workers. Workers pay their own visa application fee and Immigration Health Surcharge, although some employers choose to meet these costs as part of their recruitment package.

Shortage Occupation and Aviation Labour Market Context

The UK aviation sector has faced significant skills shortages in recent years, particularly in licensed aircraft maintenance engineers. While SOC Code 5234 is not currently listed on the Immigration Salary List (ISL) - which previously offered reduced salary thresholds for shortage roles - demand for qualified maintenance personnel remains high across airlines, MRO providers, ground handlers and charter operators.

Why Employers Are Looking Overseas

• A shortage of Part-66 licensed engineers in the UK domestic labour market
• Increased aircraft fleet sizes and maintenance requirements following post-pandemic aviation recovery
• Long training pipelines making it difficult to fill vacancies from domestic supply alone
• Niche type ratings and specialisms that are difficult to source locally

Right to Work Checks for Aircraft Maintenance Workers

Before any worker starts employment in a SOC 5234 role, the employer must carry out a right to work check. This applies to both sponsored overseas workers and any other candidates regardless of nationality.

Right to Work Check Requirements

• For sponsored workers, the right to work check is satisfied by verifying the visa or entry clearance vignette and confirming permission to work in the sponsored role.
• For settled or pre-settled EU nationals, employers should use the Home Office online checking service.
• For British and Irish citizens, a manual document check of an eligible document is required.
• Records of right to work checks must be retained for the duration of employment and for two years after it ends.

Ongoing Sponsor Compliance Duties

Once a worker is sponsored under SOC Code 5234, the employer takes on a range of ongoing compliance responsibilities. Failure to meet these duties can result in licence suspension, downgrade or revocation.

Key Compliance Obligations

• Reporting changes in a worker's circumstances to the Home Office within ten working days, including absences, changes to salary or role, and early termination of employment.
• Keeping up-to-date contact details and copies of documents for each sponsored worker.
• Ensuring sponsored workers are paid the salary stated on their Certificate of Sponsorship.
• Cooperating with