Check before
you release.
AI-powered quality audit for aerospace engineering drawings — every part number, every fastener, every revision, every time.
One missed dash number can ground an aircraft.
Aerospace engineering drawings carry hundreds of data points per sheet — part numbers, revision markers, fastener callouts, coordinate references, notes, and more. Manual QA catches most errors. Not all.
Preflight runs a structured, rules-based audit against every field your drafters touch. It doesn't replace engineering judgment — it eliminates the errors that judgment shouldn't have to catch twice.
Eight skills. Every angle.
Each skill encodes a specific domain of drafting-quality rules, built iteratively from training sessions with experienced aerospace drafters.
Parts List Integrity
v2.8Part numbers, quantities, assembly-column correctness, binder markers, source material references, and joining-method completeness.
- PN format
- QTY columns
- Binder markers
- Source material
- Joining methods
Title Block Accuracy
v1.3Drawing numbers, revisions, approvals, scale, and aircraft type consistency across every title block field.
- Drawing number
- Revision field
- Approval signatures
- Aircraft type
- Scale notation
Revision Traceability
v1.3Current revision vs. bottom-row, bidirectional rev-bubble consistency, and description specificity checks.
- Rev letter match
- Rev-bubble links
- Description specificity
- Bidirectional refs
Note Consistency
v1.1General vs. flag notes, sequential numbering, bidirectional references, and SRM chapter cross-checking.
- Sequential numbering
- Flag note refs
- Bidirectional links
- SRM citations
Fastener Callouts
v1.2PN format validation, spec-sheet compliance, structural classification, SRM cross-reference, and placeholder detection.
- PN format
- Spec compliance
- Structural class
- SRM cross-ref
- Placeholders
View Conventions
v1.1Matched section sets, cross-sheet pointers, and isometric disclaimers per ASME Y14.3.
- Section arrows
- Cross-sheet refs
- Isometric flags
- ASME Y14.3
Aircraft Coordinates
v1.0STA/WL/BL callout completeness and format validation on installation drawings.
- STA callouts
- WL callouts
- BL callouts
- Format validation
Fastener Stack-ups
v1.0Washer placement, grip length, hole-to-fastener matching, and structural vs. non-structural rules.
- Washer under head
- Washer under nut
- Grip length
- Thread exposure
How it works
Preflight is designed to fit inside your existing release process, not replace it.
Submit your drawing
Upload your 2D engineering drawing as a PDF. Preflight rasterizes it at 400 DPI to catch even the smallest text and annotation errors.
Select your audit scope
Choose from eight targeted skills or run the full suite. Each skill applies a specific set of aerospace drafting-quality rules.
Receive a structured report
Every finding is severity-coded and quadrant-located. The output is a reviewable .docx your engineering team can act on directly.
Every finding, precisely located.
Findings are severity-coded, quadrant-located, and cited with the specific rule they violate. Nothing is vague. Every finding includes an action checkbox for the drafter.
Item 5, PN 284T0022-11: dash extension -11 (2 significant digits) indicates an assembly, but the title reads "BRACKET INSTL." Initial-release drawings must align on initial release.
Rev bubble "C" appears in the detail view on Sheet 3 but no corresponding entry exists in the revision block. Checker to confirm whether this is a carry-over bubble or an unrecorded revision.
Callout uses placeholder parentheses NAS1801-( ) rather than a specific dash number. Standard practice prefers explicit PNs on released drawings. No stress impact identified.
Trained on real drawings. Built by real drafters.
Preflight's rules weren't invented in a vacuum. Every audit skill was built iteratively through training sessions with experienced aircraft engineering drafters, encoding decades of shop-specific institutional knowledge into structured, repeatable checks.
The library covers drawing conventions specific to aerospace MRO — Preflight parts lists, SRM chapter citations, NAS fastener specs, and ASME Y14.3 view conventions — not generic CAD quality tools.
Ready to run your first audit?
Preflight is currently available for qualified aerospace engineering teams. Reach out to discuss access and integration.
Request access