Digital Maintenance Records: Building UAS Audit Readiness
A maintenance task may be complete, but can someone outside the team understand what happened? For an unmanned aircraft systems (UAS) operator, that question matters during internal reviews, customer assessments, and regulatory oversight.
Digital records can make maintenance history easier to retrieve and evaluate. Their value depends on the process behind them: consistent entries, clear responsibilities, and evidence that connects the aircraft’s condition to the work performed. Moving scattered files into a new platform will not resolve gaps in that process.
Start with the operation’s requirements
Before choosing software or designing forms, identify the rules and authorizations that apply to the operation.
Under 14 CFR § 107.15, the remote pilot in command must check that the small UAS is in a condition for safe operation before each flight. Category 4 operations have additional maintenance and recordkeeping provisions under § 107.140, including records of work performed and specified aircraft status information.
Part 135 UAS operations require a different assessment. Review the applicable regulations alongside the operator’s certificates, operations specifications, exemptions, and maintenance procedures. The FAA’s drone package delivery guidance describes the certification process and the role of operator-specific exemptions and authorizations.
Avoid treating every drone as subject to the same maintenance framework, or assuming Part 43 applies universally. Separate mandatory records from additional records adopted for operational control, customer expectations, or internal quality assurance.
Build a traceable maintenance history
A useful record should let a reviewer follow a maintenance event without relying on the memory of the person who completed it. Consider a standard entry structure that captures:
Aircraft identification and the affected component, including serial numbers where relevant.
The reported condition, inspection finding, or scheduled task.
The work performed and the procedure or technical reference used, including its revision.
Completion date, responsible personnel, and required approvals or authentication.
Supporting evidence, such as inspection results, measurements, or photographs.
Remaining restrictions and the next action due, where applicable.
Define required fields around the applicable maintenance program. A photograph can support an entry, but it should not leave the reviewer guessing which aircraft, task, or date it documents.
Keep configuration changes connected
An aircraft’s maintenance history becomes harder to interpret when component swaps and software changes live in separate systems.
As a practical control, link battery replacements, propulsion component changes, payload installations, and relevant firmware updates to the affected aircraft. Preserve the previous configuration, the change date, and the verification performed before operational use. Track hours, cycles, or other usage measures when they drive inspections or component limits.
This connection helps the team investigate recurring faults. It also makes it easier to determine whether a maintenance instruction applies to the aircraft as currently configured.
Close discrepancies with evidence
A discrepancy marked “closed” should have a clear explanation behind it. Connect the original report to the corrective action, any required checks, and the person authorized to make the relevant maintenance or operational decision.
Distinguish work awaiting parts, work awaiting verification, and completed work. Make unresolved restrictions visible to the people planning flights. If deferral is permitted within the applicable framework, document its basis, limitations, and follow-up requirements rather than treating an open item as resolved.
Review repeated discrepancies periodically. Several similar entries across a fleet may warrant investigation even when each individual task has been closed.
Protect the record, not just the file
Use individual accounts, role-based permissions, and a history of changes. Establish retention rules, dependable backups, and a tested restoration process. Confirm that records remain readable and exportable if the team changes vendors.
The FAA’s active AC 120-78B, Electronic Signatures, Electronic Recordkeeping, and Electronic Manuals, provides guidance for applicable regulated entities, including Part 135 certificate holders. It describes an acceptable means, rather than the only means, and is not itself a regulation. Assess its applicability and any necessary FAA acceptance or authorization before replacing an established records process.
Test readiness before a review
Select one aircraft and one recent maintenance event. Ask a colleague who did not perform the work to reconstruct the history, confirm the current configuration, identify outstanding items, and retrieve the supporting evidence.
Record where the search breaks down. Fix those gaps in the workflow, train the team, and repeat the exercise. A useful audit-readiness measure is whether another qualified person can understand the record without an extended explanation.
For help organizing maintenance documentation, workflows, and supporting systems, contact Luckey Solutions, LLC to discuss your operation’s needs.
This article provides general operational information, not legal advice or a determination of regulatory compliance. Requirements depend on the aircraft, operation, and applicable authorizations.