14.6 Maintenance Documentation, Work Reports & Shift Handover

14.6 Maintenance Documentation, Work Reports & Shift Handover

Maintenance documentation controls the work before, during, and after physical action. A correct repair with an unclear record can lose configuration, life, or compliance evidence. A perfect record cannot make unauthorised or incomplete work airworthy. Part-145 therefore links current applicable maintenance data, work cards, task sign-off, handover, and release.

Maintenance data

Before starting, verify that the task applies to the aircraft or component, modification state, and work scope. Confirm revision status through the organisation’s controlled system. The data may include maintenance manuals, component manuals, wiring or schematic data, structural repair information, service information incorporated into the programme, airworthiness directives, engineering orders, and organisation procedures.

Read cautions, prerequisites, access, consumables, tooling, independent-inspection points, and close-up steps—not only the central removal or installation paragraph. If data appear inaccurate, ambiguous, or incomplete, stop and report the problem through the defined process. Do not silently rewrite a limit or improvise a step that changes the approved instruction.

Work cards and task recording

Work cards divide a package into controllable steps and sign-off points. Record completion when the work is actually performed and verified. Do not pre-sign, backfill from memory, or use another person’s identity. Entries should be legible and durable and use approved terminology, units, references, and correction methods.

The record should establish, as applicable: aircraft or component identity; defect or task; data and revision; parts and serial numbers; life information; consumables or batch data; measurements and test results; deviations or engineering instructions; persons performing, supervising, or independently inspecting; dates; and final status. A cross-reference is useful only if the referenced record remains identifiable and retrievable.

Corrections preserve traceability. The original entry remains readable, the correction is identified and dated as the procedure requires, and electronic records use controlled credentials and audit trails. Blank signed spaces and informal side notes create risk.

Incomplete work and handover

A shift ending does not change the technical state. The outgoing team must make the item safe and communicate what is complete, incomplete, disturbed, isolated, or exposed. A good handover identifies the exact task and status; open panels or disconnected items; electrical, hydraulic, pneumatic, mechanical, or software isolations; installed or removed parts; tools, test equipment, loose articles, and materials still controlled to the job; measurements and tests; hazards; outstanding inspections or data questions; and the next authorised action.

Use both written status and direct verbal handover where the organisation requires it. The incoming person verifies critical physical conditions rather than relying on assumption. Shift-handover records must be accessible to supervisors and certifying staff.

Release to service

A Certificate of Release to Service is issued only by staff holding the necessary licence, scope, and organisational authorisation and only when the applicable regulatory conditions are met. The release identifies the maintenance and any limitations or incompleteness handled under the permitted process. It does not erase an open task, missing tool, unresolved data query, or failed test.

Before release, review task completion, sign-offs, parts and data, independent inspections, close-up, tests, deferred items, and technical-log entries. When several people worked the package, the certifying person relies on controlled records and verification, not vague assurance.

For the exam, remember that documentation is an active safety barrier. Current data tells the team what to do; work cards show controlled progress; handover preserves the live state across people and time; and the release records the authorised airworthiness decision.

Recording measurements and status

A result such as “checked OK” may be insufficient when the task requires a value. Record the measured result, unit, applicable limit, and test condition in the location prescribed by the work card. If a task has multiple identical items, identify exactly which one was inspected or replaced. Part and serial numbers must be transcribed or captured accurately; a single digit can break traceability.

Status labels and tags support, but do not replace, the formal record. Their wording and attachment should prevent an isolated control, open line, or unserviceable part from being mistaken for a normal condition. When a tag is transferred or removed, the work system must show who is responsible and why the technical state is safe.

At handover, walk the critical area with the incoming person where practical. Point out access limitations, temporary supports, protected openings, parts awaiting disposition, and any test setup left installed. Compare the physical state with the written work card. The incoming team then acknowledges or records acceptance as the organisation requires. This closed-loop approach reduces the risk that a vague phrase such as “continue installation” hides an untorqued fitting, an unperformed independent inspection, or an energised test configuration.

Minimum Handover Checklist

• Exact aircraft, component, work-order and task status.
• Incomplete or disturbed steps, open access and installed temporary protection.
• Isolations, locks, tags, grounds, supports and test configurations.
• Removed or installed parts, controlled tools, loose articles and materials.
• Measurements, findings, tests, independent inspections and engineering queries.
• Hazards, access restrictions, next authorised action and controlling data.