> ## Documentation Index
> Fetch the complete documentation index at: https://docs.a7manager.se/llms.txt
> Use this file to discover all available pages before exploring further.

# Maintenance Plan

> Maintenance programmes and the tasks in them.

The maintenance programmes that define preventative maintenance. A grid of plans, with a drawer for
the tasks in each.

## Plans

A plan targets a **vehicle type or a component type, never both**. There is at most one plan
per type. A plan carries a name, an optional revision, and its tasks.

## Tasks

A task is one item of scheduled work.

***

## Tables

<Card title="Field reference" icon="table" href="/data/tables/service-book">
  `servicebook_maintenanceplan` and `servicebook_maintenancetask`.
</Card>

***

<Note>
  **Manhours and cost estimates live only here.** The plan import does not carry them and never
  overwrites them, which is what lets the [Planner](/pages/planner) total workload and cost per
  day.
</Note>

***

## Roles

Reading requires **Asset Manager**. Manhour and cost estimates are maintained by the
**Planner** role. Other edits require **Project Admin**.