Chapter 6: Components
Overview
Components represent the trackable parts and equipment on your aircraft. From engines and propellers to avionics and life-limited parts, the component system helps you maintain detailed records of each item's history, specifications, and maintenance requirements.
Understanding Components
What is a Component?
A component is any part of your aircraft that you want to track separately:
- Engines: Track hours, TBO, overhauls
- Propellers: Track hours, maintenance, AD compliance
- Avionics: Track installations, software updates
- Accessories: Alternators, magnetos, vacuum pumps
- Life-Limited Parts: Seat belts, ELT batteries
Component Hierarchy
Components can be organized in a parent-child structure:
Airframe
├── Engine (Lycoming O-360-A4M)
│ ├── Magneto - Left
│ ├── Magneto - Right
│ ├── Alternator
│ └── Starter
├── Propeller (McCauley 1A170)
└── Avionics
├── Garmin GTN 750Xi
├── Garmin GNS 430W
└── Transponder - GTX 345
This hierarchy helps you:
- Organize related components
- Track component-specific ADs
- View maintenance history by system
Adding Components
From Setup Wizard
When you first add an aircraft, the setup wizard offers to create common components:
- Main engine(s)
- Propeller(s)
- Major systems
Manual Creation
- Navigate to
Aircraft > Components - Click Add Component
- Fill in the component details (see below)
- Click Save Component
Component Fields
| Field | Description | Example |
|---|---|---|
| Name | Descriptive name | "Engine" or "Left Magneto" |
| Manufacturer | Who made it | Lycoming |
| Model | Model number | O-360-A4M |
| Serial Number | Unique identifier | L-12345-51A |
| Part Number | Manufacturer's P/N | (optional) |
| TBO | Time Between Overhaul | 2000 |
| Manufacture Date | When it was built | 1985-03-15 |
| Total Time | Current total hours | 1543.5 |
| Time Since Overhaul | Hours since last major overhaul | 543.5 |
| Book Type | Associated logbook | Engine |
| Parent Component | Hierarchy parent | Airframe (or None) |
| Notes | Additional information | "Factory reman installed 2020" |
Viewing Components
Component List
Navigate to Aircraft > Components to see all components:
- Name and identification
- Hours information
- Status indicators
- Quick actions
Component Detail View
Click a component to see:
- Specifications: All component details
- Maintenance History: Logbook entries linked to this component
- ADs: Airworthiness Directives applicable to this component
- Documents: Attached files
- Children: Sub-components (if hierarchical)
Hierarchy View
Toggle between:
- Flat list: All components in a simple list
- Tree view: Hierarchical organization
Managing Component Hours
Total Time
The cumulative hours on the component since new (or since last major overhaul that resets time).
Time Since Major Overhaul (TSMOH)
Hours accumulated since the last major overhaul:
- Relevant for engines, props, and other overhauled items
- Used to calculate TBO remaining
- Resets to zero after overhaul
Updating Hours
Component hours can be updated:
- Through logbook entries: When you link a logbook entry to a component and include hours
- Manual update: Edit the component directly
Best Practice: Link logbook entries to components so hours update automatically.
Component Documents
What to Attach
- 8130-3 Export Airworthiness Approval Tags
- Overhaul records
- Service bulletins completed
- Installation paperwork
- Warranty information
- Photos
Uploading Documents
- Edit the component
- Scroll to Documents & Images
- Upload files (images or PDFs)
- Save the component
Component and AD Tracking
Component-Specific ADs
Some ADs apply to specific components rather than the airframe:
- Engine ADs
- Propeller ADs
- Avionics ADs
When creating or editing an AD, you can assign it to a specific component.
Viewing Component ADs
On the component detail page, you'll see:
- All ADs assigned to this component
- Compliance status for each
- Due dates based on component hours
Editing Components
- Navigate to the component
- Click Edit
- Modify fields as needed
- Click Save Changes
Changing Parent Component
- Edit the component
- Select a new Parent Component from the dropdown
- Save changes
The component moves in the hierarchy.
Deleting Components
- Navigate to the component
- Click Edit
- Scroll down and click Delete
- Confirm deletion
Warning: Deleting a component:
- Removes the component record
- Does NOT delete linked logbook entries
- Does NOT delete child components (they become top-level)
- Removes component-AD assignments
Common Component Types
Engines
Key fields to track:
- Manufacturer (Lycoming, Continental, etc.)
- Model (O-360-A4M, IO-550-N)
- Serial number
- TBO (Time Between Overhaul)
- Total time
- TSMOH
Related maintenance:
- Oil changes
- Compressions
- Magneto timing
- Overhauls
Propellers
Key fields:
- Manufacturer (McCauley, Hartzell)
- Model and hub serial
- Blade serial numbers (in notes)
- TBO
- Total time
Related maintenance:
- Inspections
- Dynamic balancing
- Overhauls
- Blade repairs
Avionics
Key fields:
- Manufacturer (Garmin, etc.)
- Model
- Serial number
- Part number
- Installation date (in notes)
Related maintenance:
- Software updates
- Database updates
- Inspections
- Repairs
Life-Limited Parts
Parts with calendar or hour limits:
Examples:
- ELT batteries (calendar life)
- Seat belts (calendar life)
- Fire extinguisher (service date)
- Vacuum pump (hour limit)
Track expiration dates in the component notes or through schedules.
Best Practices
Be Complete
Enter all identifying information. Serial numbers are crucial for tracking.
Use Hierarchy
Organize components logically. Put magnetos under the engine, not at the top level.
Track Hours
Keep component hours current, especially for engines and props.
Link Logbook Entries
Always link maintenance entries to the relevant component.
Attach Documentation
Upload 8130-3 tags, overhaul records, and installation docs.
Document Overhauls
When a component is overhauled:
1. Update TSMOH to 0
2. Attach overhaul paperwork
3. Create a logbook entry documenting the installation
Component Scenarios
New Engine Installation
- Edit the old engine component, add note "Removed [date]"
- Create new component for the new engine
- Enter all specifications from data plate
- Set TSMOH (may be 0 if new/overhauled)
- Upload 8130-3 and installation paperwork
- Create logbook entry documenting the change
- Link logbook entry to new engine
Propeller Overhaul
- Create logbook entry describing the overhaul
- Link entry to propeller component
- Edit component, set TSMOH to 0
- Update total time
- Attach overhaul records
- Add notes about what was done
Avionics Upgrade
- If replacing, note removal in old component
- Create new component for new equipment
- Document installation in logbook entry
- Attach STCs, 337s, and installation paperwork
- Update aircraft equipment list
← Previous: Logbook Entries | Next: Airworthiness Directives →