List the maintenance activities the owner plans for each bay, then check that the ventilation, electrical equipment, fire protection, and separation shown on each discipline’s drawings support the same activities in the same places. AI can flag conflicts; the design team, the operator, and the authority having jurisdiction decide compliance.
What does NFPA 410 cover?
NFPA 410 is the Standard on Aircraft Maintenance. NFPA’s page states that it presents requirements for fire safety to protect life and property during aircraft maintenance, and that it does not include the health and safety requirements for personnel involved in aircraft maintenance.
NFPA’s official NFPA 410 page identifies the 2025 edition as current when checked on October 9, 2026. Confirm the edition, local amendments, and project scope that actually govern the work. The publisher’s newest edition does not establish local adoption.
NFPA 410 addresses fire safety during the maintenance work itself. The hangar building and its fire protection systems are covered in the NFPA 409 hangar guide, and spray painting areas in the NFPA 33 guide. Record which documents the authority and the operator require before comparing.
Gather the activity list and the hangar drawings
Collect the owner’s list of planned maintenance activities by bay, the hangar floor plans and sections, the mechanical ventilation and exhaust drawings, the electrical plans with any classified areas, the fire protection and fire alarm drawings, the compressed gas and oxygen system drawings where provided, the floor drainage plans, and the specifications.
The activity list often lives in the basis of design or a programming document rather than on a sheet. Upload it with the set so each activity can be traced to the bay where the drawings support it.
Match each maintenance activity to its bay
| Review question | Sources to compare | Decision to record |
|---|---|---|
| Activities by bay | Basis of design, floor plans, room names | Confirm the activities named for each bay agree between the program and the drawings. |
| Ventilation | Mechanical drawings, basis of design, specifications | Check that bays planned for fuel system or painting work have the ventilation the mechanical drawings describe. |
| Electrical equipment | Electrical plans, classification drawings, schedules | Find equipment in work areas whose classification on the electrical sheets differs from the activity planned. |
| Fire protection | Fire protection plans, hangar plans, specifications | Match the suppression and detection shown for each bay with the hangar and specification documents. |
| Oxygen and compressed gases | Gas system drawings, floor plans, specifications | Confirm where oxygen servicing happens and that every discipline shows it in the same room. |
| Separation | Floor plans, rated wall plans, door schedule | Ask the designer to confirm which work areas are separated and that the walls and doors agree. |
Fueling on the apron outside the hangar belongs in the NFPA 407 guide, and exhaust systems in the NFPA 91 guide. These questions come up on airport and government projects.
Example: a paint bay moved to the other end of the hangar
Hypothetical example. During design, the owner moves aircraft painting from the east bay to the west bay to separate it from fuel system work. The floor plans and room names show the change, while the mechanical exhaust drawings and the electrical plans still place the paint exhaust and classified equipment in the east bay.
The floor plans now show painting in the west bay, but the mechanical exhaust and the electrical equipment for painting are still drawn in the east bay. Please confirm the paint bay location and coordinate the ventilation, electrical classification, and fire protection.
The design team confirms the bay layout and updates the mechanical and electrical drawings. Compliance is decided by the designers and the authority having jurisdiction.
Review an aircraft maintenance facility with Groundbook
Upload the current project PDFs and relevant specifications to Groundbook. Identify the governing issues and add the applicable NFPA 410 reference from a copy you are licensed to use, where the license permits uploading it. State the edition, amendments, review area, and known exclusions in your instructions.
Compare the maintenance activity list, hangar floor plans and sections, mechanical ventilation and exhaust drawings, electrical plans and classified areas, fire protection and fire alarm drawings, gas system drawings, drainage plans, and specifications. Flag activities, ventilation, electrical classification, fire protection, gas systems, and separations that differ between sources. Use the supplied NFPA 410 edition where applicable and cite both sources.
Groundbook links each potential finding to the sheets involved and the reference you uploaded.
Document review does not plan maintenance procedures, classify areas, or approve the facility. Those decisions remain with the design team, the operator, and the authority having jurisdiction.