Musket Docs

1 What's on this page

The Logbooks page shows all logbooks for a selected aircraft — the airframe logbook, engine logbooks, and propeller logbooks. Each logbook is organised into volumes and pages. You navigate to any volume and page to view its entries, and work directly on the current (last) page to add or delete entries.

Page Structure

Aircraft selector: Search and select the aircraft whose logbooks you want to view
Airframe logbook: One logbook per aircraft, tracking flight hours and landings
Engine logbooks: One logbook per fitted engine, tracking engine hours and cycles (and optionally N1/N2)
Propeller logbooks: One logbook per fitted propeller, tracking propeller hours
Volume selector: Dropdown to switch between volumes within a logbook
Page navigation: Pagination bar to move between pages within the current volume

Key Concepts

Volume: A group of pages within a logbook. When a volume reaches its maximum number of pages, a new volume starts automatically.
Page: A fixed number of entries within a volume. When a page reaches its entry limit, a new page starts automatically.
Current page: The last page of the last volume — the only page where new entries can be added or deleted.
Historical pages: All pages other than the current page. These are read-only and protected from modification.

Who uses this page: Maintenance staff and administrators with full logbook permissions. This page requires the Maintenance Hub — Logbooks — Full permission.

You can navigate to this page from the Logbooks button (green books icon) in the Maintenance Tracker aircraft list, or by using the direct URL with a specific aircraft.

Post-Flight Actuals (PFA) organisations: If your organisation uses Post-Flight Actuals as its maintenance interval source, manual logbook entry and management is not available. Navigating to this page will show an informational message explaining that flight hours and cycles are tracked automatically from PFA data — no manual logbook entries are required or permitted.

2 Primary workflows

2.1 Select an aircraft and navigate to a logbook page

Choose an aircraft to view its logbooks, then navigate to any volume and page in its history.

Use the Select aircraft search field to find and select the aircraft
The airframe logbook, engine logbooks, and propeller logbooks load automatically, opening on the current (last) page of each
To view a different volume, use the Volume dropdown above the logbook table and select the desired volume number
To view a different page within the current volume, use the page navigation bar and click the desired page number
The table updates to show only the entries for the selected page — previous and later pages are not loaded

Only the entries for the page you are viewing are loaded. This keeps navigation fast regardless of how many volumes or years of history exist.

2.2 Add a new logbook entry

New entries can only be added to the current (last) page of the logbook. The system automatically places entries on the correct page and volume.

Ensure you are viewing the current (last) page of the airframe logbook. The Add new entry button only appears on the current page.
Click Add new entry
In the entry window, fill in:
- Date: The date of the entry (required, cannot be a future date)
- Tech Log #: Optional technical log number
- Flight hours and Landings (airframe)
- Engine hours and Engine cycles (engines)
- N1 and N2 (if enabled for the engine)
- Propeller hours (propellers)
Click Submit to save the entry

Automatic page and volume management: When you save a new entry, the system checks whether the current page is full (based on the logbook's lines-per-page setting). If it is, a new page is created automatically and the entry is placed there. If the current volume is also full, a new volume is started. You do not need to manage pages or volumes manually.

The Add new entry button is only shown for airframe logbooks and only when the organisation is not using Post-Flight Actuals (PFA). If all required engines or propellers are not assigned to the aircraft, the button is disabled with an explanatory message.

2.3 Edit an existing logbook entry

Logbook entries can be edited on any page. You can freely change flight hours, engine hours, cycles, and other values. Changing an entry's date has additional restrictions.

Navigate to the page containing the entry you want to edit
Click the blue edit button () in the entry's row
Update the values in the entry window
Click Submit to save your changes

Date boundary restriction: If you change an entry's date to one that falls outside the date range of its page, the save is blocked and a message explains why. This protects the integrity of the page boundaries. To record activity outside the page's date range, add a new entry on the appropriate page instead.

2.4 Delete a logbook entry

Entries can only be deleted from the current (last) page. Historical pages are protected from deletion to preserve the integrity of completed records.

Navigate to the current (last) page of the logbook
Click the red delete button () in the entry's row
A confirmation window appears showing the entry to be deleted
Click Delete to confirm

Historical pages are protected: Clicking delete on an entry from a historical page opens the confirmation window but shows a warning message and disables the Delete button. Historical entries cannot be removed — this protects the accuracy and audit trail of completed logbook pages.

Automatic cleanup: If you delete the last remaining entry on the current page, the now-empty page is automatically removed. You are returned to the previous page, which becomes the new current page.

2.5 Export a logbook page to PDF

Any logbook page can be exported as a PDF document. The export is linked directly to the specific page, so re-exporting retrieves the existing PDF instead of generating a new one.

Navigate to the logbook page you want to export
Click the green Export Page button at the top of the logbook table
In the export window, review or update the maintenance summary text. This text appears on the exported PDF and describes the maintenance work covered by this page's entries.
Optionally use the Musket Autopilot AI tool to help generate the maintenance summary text
Click Submit to generate and save the PDF, or Save to save the summary text without downloading
Once the PDF is generated, use the Print or Download buttons to retrieve it

Cached export: When you export a page that has already been exported, the existing PDF is retrieved immediately — no regeneration occurs. If you want to update the maintenance summary and regenerate, update the text and click Submit again. The Export Page button is only available when the selected page has at least one entry.

If you open the export window and then click Cancel or close it without saving, any changes to the maintenance summary text are discarded. The next time you open the export window for the same page, the previously saved summary is shown.

2.6 Create a new logbook

If an aircraft, engine, or propeller does not yet have a logbook, you can create one directly from this page.

Select the aircraft using the aircraft selector
For the component without a logbook, a Create new logbook button appears in place of the logbook table
Click Create new logbook for [component name]
In the logbook settings window, configure the logbook's lines-per-page and pages-per-volume settings, then save

3 Skipped pages

Some physical logbooks do not start recording from page 1 — a page or two may be reserved before the first recorded entry. The Pages to skip setting lets you replicate this in the system so that the digital page numbers match the physical book.

When the first entry is saved to a logbook that has Pages to skip configured, the system automatically inserts the appropriate number of empty placeholder pages before placing the new entry. For example, if Pages to skip is set to 2, the first entry lands on page 3 — and pages 1 and 2 exist in the system as placeholders.

When you navigate to one of these placeholder pages, a grey banner is displayed:

Skipped page — no entries. This page was reserved to match the physical logbook page numbering.

The Export Page button is disabled for skipped pages. If all entries after the skipped pages are deleted, the placeholder pages are also removed automatically along with the volume.

Only applies to logbooks with no existing entries. The Pages to skip setting takes effect only when the very first entry is saved to a logbook. If a logbook already has entries, changing this setting has no effect — the placeholder pages will not be inserted.

4 Feature reference

4.1 Logbook table

Each logbook type (airframe, engine, propeller) is shown in its own table. The columns displayed depend on the logbook type:

Column	Logbook type	Meaning
Edit	All	Opens the entry in the Add/Edit entries window. Only shown when PFA is not the interval source.
Date	All	The end reference date of the entry (UTC).
Tech Log #	All	The associated technical log number, if recorded. Only shown when at least one entry on the page has a tech log number.
Flight hrs.	Airframe	Flight hours logged in this entry.
Landings	Airframe	Landing count for this entry.
Engine hrs.	Engine	Engine hours logged in this entry.
Cycles	Engine	Engine cycles logged in this entry.
N1 / N2	Engine	N1 and N2 values, shown only when N1/N2 tracking is enabled for the engine in the aircraft configuration.
Propeller hrs.	Propeller	Propeller hours logged in this entry.
Delete	All	Removes the entry after confirmation. Only shown when PFA is not the interval source.

Table states:

Entries present: Rows are listed in date order. Edit and Delete buttons appear at each row.
No entries (empty logbook): A blue "No entries" banner is shown.
Skipped page: A grey "Skipped page" banner is shown (see Skipped pages).

4.2 Logbook Settings window

The Logbook Settings window is opened by clicking the gear icon on any logbook table. It controls how the logbook organises entries into pages and volumes.

Field	Description	Notes
Lines per page	The maximum number of entries allowed on a single page. Once a page reaches this count, the next entry automatically starts a new page.	Applies from the point of saving. Does not reorganise existing entries.
Pages per volume	The maximum number of pages in a single volume. Once a volume reaches this count, the next page automatically starts a new volume.	Applies from the point of saving. Does not reorganise existing pages.
Pages to skip	How many empty placeholder pages to insert at the start of the first volume, so the page numbers match a physical logbook that doesn't start at page 1.	One-time setting. Only applies when the very first entry is added to the logbook. Has no effect once entries exist.

Example — Pages to skip: If the physical logbook has a front-matter page before the first entry row, set Pages to skip to 1. When the first entry is saved, the system creates page 1 as an empty placeholder and places the entry on page 2, matching the physical book.

4.3 Add/Edit entries window

The Add/Edit entries window opens when adding a new entry or editing an existing one. It shows a row for the airframe and a row for each engine and propeller, allowing all logbook values to be entered together.

Key fields include:

Date: The end reference date for the entry.
Tech Log #: Optional reference to the associated technical log.
Flight / Engine / Propeller hours: Hours accumulated in this entry. Updates the component's running total.
Landings: Landing count for airframe entries.
Cycles: Engine cycle count for engine entries.
N1 / N2: Turbine stage readings for engine entries, when enabled in the aircraft configuration.
Close page: Tick this to mark the entry as the last on the current page. The next entry added to this logbook will automatically start on a new page. Only has a practical effect when this is the last entry saved; ticking it on older historical entries does not move any existing entries.

5 Permissions

Access to logbooks is controlled by the Maintenance Hub — Logbooks — Full permission. Users without this permission cannot view or interact with the logbooks page.

The Add new entry, Edit, and Delete buttons are only available when PFA is not configured as the maintenance interval source for the aircraft.

6 Related pages and next steps

Maintenance Tracker

Central hub for maintenance oversight, compliance tracking, and job cards. The Logbooks button in the aircraft list navigates to this page.

Use when: Reviewing maintenance compliance, creating job cards, or navigating to logbooks from an aircraft overview.

Maintenance Aircraft

Manage aircraft, engines, and propellers. Engine and propeller assignments made here determine which logbooks appear on this page.

Use when: Adding new components, reassigning engines/propellers, or reviewing component configuration.

Post-Flight Actuals

When PFA is the maintenance interval source, flight hours and cycles are tracked automatically from Post-Flight Actuals data. Manual logbook management is not available for these organisations.

Use when: Your organisation tracks maintenance intervals from completed PFA records.

Maintenance Settings

Configure logbook settings including lines-per-page and pages-per-volume limits, as well as the maintenance interval source (manual logbooks vs PFA).

Use when: Setting up logbook structure or changing maintenance tracking configuration.

Airframes, Engines & Propellers Logbooks