EASA Part-66 Experience Records: Frequently Asked Questions

Everything you need to know about maintenance tracking, regulations, and transitioning to a digital AME logbook.

This page is general information, not regulatory advice or a statement that AMELogbook exports are approved. EASA says the format for demonstrating experience is not strictly defined and is left to the competent authority; a logbook is desirable and some authorities may require one. Check EASA’s guidance and the current instructions of the authority where you intend to apply.

1. Official EASA Part-66 Requirements

What are the official EASA Part-66 logbook requirements for aircraft maintenance technicians?
Applicants must provide evidence that lets the reader reasonably understand where, when, and what maintenance experience was gained. EASA does not prescribe one universal logbook format. A logbook is desirable, and some competent authorities may require one. Follow the instructions of the authority receiving your application.
What specific details must be recorded for every logbook entry under AMC Part-66?
There is no single EASA-prescribed set of fields for every logbook entry. Keep enough detail for a reviewer to understand where, when, and what maintenance was performed, and include any supporting information or validation required by your competent authority or employer.
How does the "representative sample of tasks" rule affect my Part-66 logbook?
Some Part-66 experience and type-rating pathways refer to a representative cross-section of maintenance tasks. Which tasks and evidence apply depends on the licence or rating sought and the applicable rules. Use the current Part-66 material and your competent authority’s instructions to determine what to include.
Can tasks performed on military or non-EASA aircraft be logged for a Part-66 AML?
Whether particular experience can be counted depends on the applicable Part-66 requirements and the competent authority’s assessment. Ask the authority where you intend to apply what evidence it needs before relying on experience gained outside the usual civil maintenance environment.
How long must I keep my EASA Part-66 maintenance logbook records?
The recent-experience rules for exercising Part-66 privileges are separate from a universal logbook-retention period. Keep records for as long as you may need them to support applications, recency, or employer requirements, and check the competent authority’s instructions for your situation.
What is the difference between a logbook task and an On-the-Job Training (OJT) item?
A general experience record and an On-the-Job Training (OJT) record serve different purposes. Part-66 OJT uses a structured task list, with completed tasks recorded and countersigned by the designated assessor where the applicable pathway requires it. Check the current rules and your organization’s approved process.
How are complex structural repairs like Roto Peening or Sheet Metal reworks logged?
Describe the work clearly and identify the approved maintenance or repair data used where your procedures require it. Use the ATA chapter and any process-specific details required by your employer, the task documentation, and the authority reviewing your records.

2. Digital Records & Format Acceptance

How does acceptance of digital experience records work with EASA authorities?
EASA does not define one mandatory format for presenting maintenance experience, and the competent authority decides what evidence is acceptable for an application. Ask the authority where you intend to apply whether it accepts your chosen digital records and what verification or export format it requires.
What should I check before relying on a digital logbook?
Part-66 does not prescribe one universal digital-logbook security design. Requirements for record integrity, supervisor validation, signatures, and retention can depend on the competent authority and employer. Confirm those requirements before using a digital record as application evidence.
What are the primary advantages of switching from a paper logbook to a digital AME logbook?
Digital records can be easier to search, filter, and export. They do not remove the need to keep copies, provide required supervisor validation, or follow the receiving authority’s rules. Features such as electronic signatures should only be relied on when the system and authority support them.
Can an NAA reject my logbook application if it is submitted digitally?
The competent authority assesses whether the evidence submitted supports the application. A digital format or export is not automatically accepted because it is readable or organized; follow the authority’s current instructions and provide any requested supporting evidence.
How do digital logbooks handle the supervisor verification process compared to paper signatures?
A record in AMELogbook should not be treated as an electronic signature or proof of supervisor identity unless the applicable process explicitly provides for that and the receiving organization or authority accepts it. Obtain supervisor validation in the form required for your records.
How can I present my digital AMELogbook records during an NAA license audit?
AMELogbook can generate reports from your records. Check whether the authority accepts the report format and what additional signatures, evidence, or submission steps it requires; do not assume that an export is an approved form or can be uploaded directly.

3. Data Logging, ATA Chapters & Troubleshooting

What counts as "recent maintenance experience" for an EASA Part-66 license?
Part-66 includes recent-experience conditions for exercising licence privileges, including a six-month period within the preceding two years in the applicable circumstances. The exact rule depends on the privileges and situation; consult EASA’s current guidance and your competent authority. A dashboard does not determine eligibility.
How should concurrent or multi-system troubleshooting tasks be split in a logbook?
Describe the fault, troubleshooting performed, and result clearly. Use the ATA chapter or chapters required by your organization’s procedures and the maintenance data; do not split or classify a record solely to affect experience totals.
What happens if a supervisor makes a mistake or entries overlap in a digital logbook?
Follow your employer’s correction and record-control process. Before relying on any digital logbook, confirm whether it retains a history of changes and whether that history meets the needs of your supervisor, employer, or competent authority.
How should a technician log engine run-up or functional test flights under Part-66?
Record the work and test results required by the applicable maintenance data and your organization’s procedures. The correct ATA classification and details depend on the system and task; follow the approved task instructions.
Can a single logbook entry cover multiple days of maintenance work?
Use the recording method required by your employer and the authority reviewing the experience. If work spans several days or shifts, make the dates and work performed clear enough for a reviewer to understand the record.
How does a digital logbook help track Category A, B1, B2, or B3 license progress?
AMELogbook lets you filter and review tasks by fields such as ATA chapter. It does not determine whether you meet the experience or eligibility requirements for a Part-66 category; verify those against the current rules and your competent authority’s guidance.
What is the standard protocol for handling digital logbook data backups?
Keep copies of important records and exports in line with your employer’s retention process and the competent authority’s requirements. Do not assume a cloud service replaces your own retention obligations or provides a particular backup schedule unless that service explicitly documents it.