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Poor team effort is not always the reason behind an EASA Part-145 audit gaps. More often, evidence is hard to retrieve or trace in pen-and-paper based methods. Major MRO operators today struggle to show the correct maintenance even though the task has been completed correctly.  

Part 145 Shops may also struggle to prove who carried out the activity. All these challenges are inherent to analogue methods. However, MRO software cannot make an organisation compliant by itself. It reduces the gap between that process or work that is done by team and evidence that is captured. Business software is primarily built to improve work efficiency, and synchronization across teams. They reduce the frictions, gaps, stemmed from manual workflows.  

Moreover, digital records are easier to maintain. They can be easily traced. Operators can centralize processes and data in a structured, rule-based manner. 

It is easier to trace digital records than manual records that are kept in isolated departments. Plus, solutions built around Part 145 offer more safety than paper records. They include features to track activities and operational status, and safeguard data from tampering. 

Audit Risk Starts with Missing Evidence 

EASA expects an organisation to explain its electronic tools and processes in that document.  

Auditors see how an MRO controls processes, and the standard written procedures an MRO team follows. They may review the revision, authorizations, work-pack records, and corrective actions. The evidence must match what the organisation says in its MOE (Maintenance Organization Exposition). 

Paper-based processes can meet Part-145 requirements. Yet, they can become difficult to manage as work volume grows.  

Software helps when it brings these records into one controlled process. It should not replace the MOE. Instead, it should support the procedures described in the MOE.  

Controlled Maintenance Data 

Maintenance data must be current when maintenance is performed. An MRO must also show which data was used. This is important during an audit and after a maintenance event. EASA states that maintenance should not be performed or released when required data is unavailable or outdated.

A well-configured MRO system can link a work order to the right manual revision. It can also limit access to withdrawn or superseded documents. Therefore, a technician sees the approved task data at the point of work.  

This does not remove the need for human checks. Someone still needs to manage data updates. Someone must confirm that the system reflects the approved process. However, the system can make missed revisions easier to spot. 

What Auditors May Need to See 

EASA says used maintenance data must be recorded and accessible for audit purposes. Recording the manual revision may be sufficient in some cases.  

An auditor may ask which version of a document was used for a task. They may also want to know when that version became available. The right MRO software makes this information easy to find. Simply linking to a document is not enough. The software should also track and control document versions so users can see exactly which version was used and when. 

Clearer Sign-Offs and Records 

A maintenance record needs more than a completed status. It should show the task, signatory, date, and relevant supporting information. Electronic workflow tools can capture this information during the work. This reduces the need to rebuild the record later. 

EASA’s guidance says each electronically signed step should create a uniquely identified record. The record should capture the related documents, completed step, signing person, and attestation time. This creates an audit trail that follows the work pack.  

For internal electronic tools, a controlled username and password may be sufficient. The organisation must control how those credentials are issued. It should also consider stronger checks for hosted systems or internet-based access.  

Corrections Need a History 

Mistakes happen in both paper and digital records. The issue is how an organisation corrects them. A person should not be able to erase a completed sign-off without leaving evidence. The original entry should remain readable when needed. 

EASA expects a correction to receive a new signature. It also says the correction should not prevent access to the original entry. Good MRO software can support this rule through a visible change history.  

Better Control of Staff Authorizations 

MROs must ensure that personnel involved in maintenance, airworthiness reviews, and quality is competent in their roles. For smaller MROs, this is an ongoing administrative burden.  

Software can centralise staff records and connect authorisations with type training, practical experience, continuation training, and expiry dates. It can also flag records that need review, enabling mangers to address gaps before assigning work.  

The benefit goes beyond record keeping. Planners can verify authorisations before allocating tasks, and supervisors can confirm competence without relying on manual records. Even so, the MRO must ensure that information maintained in the system is accurate and updated.  

Findings and Corrective Actions 

EASA requires the system to monitor whether activities follow approved procedures. The system itself must also be monitored through an audit programme. Independent audits should be carried out by people not responsible for the area reviewed. 

Audit findings if unresolved, most of the times it is because accountability is not defined properly by operators. Some information remains in emails; others are in spreadsheets, with no record of what was fixed, who fixed it, and where the evidence is stored.  

MRO software makes this process easier by assigning responsibility, tracking due dates, and recording the status of each finding. By linking findings to the relevant procedures, work orders, and audits, it provides compliance teams with a more complete view of outstanding actions and supports more informed management reviews.  

Software does not create independence. That remains an organisational decision. Still, it can provide a reliable record of audit plans, findings, evidence, and closure checks. 

Choose Software Around Your Process 

The best MRO software is not always the system with the longest feature list. It is the system that supports your approved way of working. Before selecting or changing a system, map the current process. Include work packs, manual control, staff authorisations, stores records, and corrective actions. 

Then identify where evidence is lost or delayed. That is where software may reduce audit risk. For example, a small component shop may need stronger work-pack traceability. A line-maintenance provider may need better control of mobile sign-offs and lost connectivity. 

EASA recommends speaking with the competent authority before moving from paper to electronic processes. The organisation should also update its MOE, train users, and conduct internal assessments. A gradual rollout often provides better evidence than a rushed full-system change.  

Software Supports Compliance, Not Approval 

MRO software reduces audit risk when it improves control and retrieval. It can show the current maintenance data, authorised person, task history, and corrective-action status. It can also keep electronic records readable and protected. These controls support the evidence expected during oversight. 

Still, software is only one part of Part-145 compliance. Procedures must match the MOE. Staff must understand their responsibilities. Management must review the system and act on findings. 

The practical goal is simple. When an auditor asks for a record, the MRO should find it quickly. The record should show what happened, who acted, and which approved data supported the work. 

Tanmay Soni

Tanmay Soni

Founder & CEO of PrioxiMRO, bringing over 20 years of technology leadership experience - including 7+ years in AI, cloud transformation, and enterprise software to help Part 145 maintenance organisations digitise operations, strengthen compliance, and keep aircraft flying.

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EASA Part-145 Compliance: How MRO Software Reduces Audit Risk