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Injection Part FAI Report Template: Sample, Format & What to Include

Verify that your first molded plastic samples meet precise drawing tolerances, cosmetic standards, and assembly requirements before production release. This engineering guide provides a downloadable injection part FAI report template, covering mandatory dimensional results, visual inspection fields, and technical FAI vs. PPAP submission criteria.

Download FAI Template View Sample Structure

Professional Injection Part FAI Report Inspection and Dimensional Verification - Super Ingenuity

What it includes

Dimensional results, ballooned drawings, visual appearance records, and functional assembly check data.

When it is used

Mandatory for new molds, tool modifications, resin grade changes, or after major cavity repairs.

FAI vs PPAP

Understand the scope difference between single-part validation (FAI) and full production process approval (PPAP).

What Is an Injection Part FAI Report?

Definition for Injection Molded Plastic Parts

A First Article Inspection (FAI) Report is the "birth certificate" of a newly molded component. Unlike a simple marketing spec sheet, it is a formal pre-production validation document. For injection molding, an FAI proves that the mold, material, and process can consistently yield parts that meet every engineering specification before mass production begins.

What the Report Is Used to Verify

The report provides objective evidence that the following criteria are met:

Drawing Conformance: 100% verification of critical dimensions.
Visual Appearance: Surface texture, color, and defect limits.
Assembly Fit: Verification of snap-fits and mating tolerances.
Functional Integrity: Performance under specified loads or heat.

Who Typically Reviews the Report

A compliant FAI report is a cross-functional decision tool reviewed by:

Quality Engineer SQE (Supplier Quality) Sourcing Engineer Product Engineer Project Manager

Quality Engineer performing CMM dimensional measurement for Injection Part FAI Report

What Should Be Included in an Injection Part FAI Report?

For complex injection molded components, a complete First Article Inspection (FAI) report serves as technical evidence of mold capability. It must be structured to allow quality engineers to trace every dimension back to the master drawing. Below is the essential report structure and field checklist required for professional customer submission.

Section	What it should contain	Why it matters
Traceability	Part ID, Revision, Material, Mold/Cavity No.	Ensures the report matches the correct production version.
Dimensional	Ballooned drawing, tolerances, and actual measured results.	Proves the tool meets the engineering drawing tolerances.
Visual & Functional	Surface defect limits, texture, fit check, and assembly verification.	Validates the part is fit for use in the final product.

Part Identification & Drawing Reference

Part Name / Number: Precise nomenclature matching the ERP system.
Drawing Revision: Must match the current Engineering Change Notice (ECN).
Material Grade: Exact resin name and supplier lot (e.g., Sabic PC/ABS).
Mold & Cavity Reference: Identifying the specific tool and cavity number.
Sample & Report Date: Documentation of the inspection timeline.

Ballooned Drawing & Traceability

Proper traceability starts with a ballooned drawing for plastic parts.

Balloon Number: A unique ID for every characteristic.
Characteristic Linkage: Direct cross-reference to the dimensional table.
Critical-to-Quality (CTQ) Marks: Highlighting key functional dimensions.

Dimensional Inspection Results

Recorded in a standard dimensional inspection report format.

Nominal & Tolerance: The design intent from the drawing.
Actual Result: The physical measurement captured by CMM or Calipers.
Inspection Method: Tooling used (e.g., CMM, OMM, Micrometer).
Pass/Fail Status: Clear binary disposition for each dimension.
Remarks: Notes on deviations or measurement conditions.

Visual Appearance Inspection

Molding Defects Check: Absence of flash, sink marks, or short shots.
Cosmetic Integrity: Control of weld lines, gate vestige, and scratches.
Surface Finish: Verification of texture grade, gloss level, and color match.

Functional or Assembly Test Results

Fit Check: Verified clearance with mating components.
Snap-fit Engagement: Proper locking force and audible click verification.
Screw/Insert Assembly: Torque validation and thread seating.
Fixture Seating: Stability check within assembly jigs.

Final Disposition & Deviation Notes

Overall Status: Approved, Rejected, or Conditional Approval.
Deviation List: Detailed list of any out-of-spec dimensions.
Corrective Action Note: Required mold adjustments or process tuning.

Download Injection Part FAI Report Template

What it Includes

Project Identification & Cover
Dimensional Result Sheet
Visual Inspection Record
Assembly & Fit-check Sheet
Final Approval Summary

Available Formats

Editable Excel (.xlsx) Template
Sample PDF Report Example
Printable Field Checklist

When to Use it

New Mold Sampling (T1/T2)
Customer Quality Submission
Internal Tool Validation
Pilot Build Review Stage

FAI_Report_Template_Sample.xlsx Sheet: Dimensional_Results

Balloon #	Characteristic	Nominal	Tolerance	Actual	Status
01	Outer Diameter (A)	50.00 mm	+/- 0.05	50.02	PASS
02	Wall Thickness (min)	2.50 mm	+0.10 / -0	2.54	PASS
03	Snap-fit Clearance	0.15 mm	+/- 0.02	0.16	PASS

Who uses it:

Project Managers and Supplier Quality Leads.

Decisions supported:

Risk assessment for non-critical deviations and tool re-sampling schedules.

Sample Table Preview: Dimensional Result Format

Balloon No.	Characteristic Description	Nominal	Tolerance	Actual Value	Method	Status
101	Overall Length (Main Body)	120.00 mm	+/- 0.10	120.04 mm	CMM	Accept
102	Internal Boss Diameter	4.50 mm	+/- 0.05	4.52 mm	Pin Gauge	Accept
103	Rib Wall Thickness	2.00 mm	+/- 0.08	1.98 mm	Micrometer	Accept
104	Snap-fit Undercut Depth	0.85 mm	+/- 0.02	0.86 mm	OMM (Optical)	Accept

When Is First Article Inspection Required for Plastic Parts?

An FAI report is not a one-time event; it is a critical re-validation trigger whenever the manufacturing baseline shifts. In injection molding, even minor tool or material variations can deviate part dimensions and functional fit. Use the following decision matrix to determine submission necessity.

Trigger Event	FAI Required?	Technical "Why"
New Mold / Initial Sampling	MANDATORY	To baseline tool capability and verify 100% drawing compliance before production release.
Engineering Change (ECN)	YES	Modification of part geometry affects nominal dimensions and critical assembly clearances.
Resin Grade Change	YES	Differential shrinkage rates between material grades (e.g., PC to ABS) cause dimensional shifts.
Tool Repair / Transfer	YES	Steel modification or press calibration differences at a new facility impact process stability.

New Mold or Initial Sampling

Dimensions: Verification of steel-safe areas and shrinkage calibration.
Appearance: Initial approval of texture, gloss, and gate appearance.
Submission: Establishes the quality baseline for all future production.

Engineering Change or Tool Modification

Dimensions: Proves the modification matches the new CAD/Drawing revision.
Assembly Fit: Ensures new features do not interfere with mating components.
Validity: Required to close out the ECN (Engineering Change Notice) workflow.

Material Change or Resin Grade Change

Dimensions: $D = D_{cavity} / (1+S)$; different shrinkage ($S$) yields different sizes.
Appearance: Flow differences may trigger new sink marks or weld line positions.
Validity: Ensures UL or material compliance certificates match the physical part.

Cavity Repair, Insert Change, or Tool Transfer

Dimensions: Verification that repaired inserts or moved tools hold previous tolerances.
Fit: Ensures inter-cavity consistency hasn't drifted after maintenance.
Validity: Part of ISO/IATF 16949 re-validation requirements for site transfers.

FAI vs PPAP for Injection Molded Parts

While both terms relate to quality validation, they serve different strategic roles in the injection molding product lifecycle. Understanding the difference between First Article Inspection (FAI) and Production Part Approval Process (PPAP) is essential for correct customer submission and project scheduling.

Comparison Item	FAI Report	PPAP Submission (Level 3)
Purpose	Verification that the mold/part meets 100% of the engineering drawing requirements.	Proof that the manufacturing process can consistently produce parts during a production run.
Scope	Focused on 1 to 5 pieces typically from initial sampling.	Focused on 300 pieces (standard run) or specific customer-required volume.
Dimensional Results	100% dimensions recorded against balloon numbers.	Statistical data (CPK/PPK), Gage R&R, and critical dimensions summary.
Visual Record	Detailed assessment of texture, color, and specific molding defects.	Appearance Approval Report (AAR) signed by customer designer/engineer.
Material Cert	Material grade verification (COA).	Full material traceability, UL cards, and RoHS/REACH compliance data.
Approval Level	Technical approval by Quality/Project Engineer.	Formal business-level approval signed off via PSW (Part Submission Warrant).
Customer Role	Engineering verification tool.	Critical requirement for automotive, medical, and aerospace supply chains.

What an FAI Report Covers

In injection molding, the FAI is a "static" snapshot. It focuses on the Tool Capability. It verifies every hole, rib, wall thickness, and draft angle from the mold is exactly as intended on the CAD. It is the primary tool for Mold Approval.

What PPAP May Also Require

PPAP is a "dynamic" assessment. It includes FAI data but adds Process Capability. It requires a Process Flow Diagram, PFMEA (Failure Mode and Effects Analysis), Control Plan, and evidence of a sustained 4-8 hour production run.

When Customers Ask for Both

Usually, the FAI report is the technical foundation of the PPAP. You perform the FAI during T1/T2 sampling to align the mold. Once the part is approved, you run the PPAP lot to approve the entire manufacturing ecosystem.

What to Prepare Before Submission

Ensure your ballooned drawing matches the FAI table exactly. For PPAP, prepare your CPK data for all Critical-to-Quality (CTQ) dimensions and ensure your material test reports are within the 1-year validity period.

How to Prepare an Injection Part FAI Report

Creating a professional-grade FAI report requires a disciplined workflow to ensure every controlled characteristic is traceable to the master drawing. Follow this structured process used by SQEs and Quality Managers to ensure seamless customer submission and approval.

Review

Balloon

Measure

Inspect

Verify

Finalize

01. Review the Latest Approved Drawing Revision

Verification begins by confirming you are using the latest Engineering Change Notice (ECN) revision. Any mismatch between the mold-state and the drawing revision will invalidate the entire report.

02. Identify Critical Characteristics and Balloon the Drawing

Assign a unique balloon number to every controlled dimension and GD&T requirement. This creates a permanent traceability link between the physical measurement and the technical drawing.

03. Select the Inspection Method for Each Characteristic

Define the metrology equipment used—CMM for complex geometries, OMM for thin walls, or custom gauges for specific internal features. Method consistency is key for Gage R&R.

04. Record Dimensional Results Clearly

Populate the report with Nominal values, Tolerances, and Actual measured results. Ensure the pass/fail status is explicitly stated for every ballooned characteristic.

05. Define the Appearance Acceptance Criteria

Incorporate a dedicated section for visual standards. Reference visual inspection criteria for molded plastic parts to document texture, color match, and defect limits.

06. Add Functional or Assembly Checks Where Needed

For mating components, perform an assembly fit check for plastic components. This validates the "fit and function" that dimensional checks alone might miss.

07. Issue Approval Status and Attach Supporting Records

Consolidate the data into a final disposition: Approved, Rejected, or Conditional. Attach raw CMM data, material certificates (COA), and photographs of any deviations for a complete submission package.

FAI Preparation Best Practices

Structured Workflow: Follow a linear sequence to avoid data omissions.
Full Traceability: Every measurement must map to a specific balloon ID.
Customer Readability: Use clear, standard formats that an external SQE can audit in seconds.
Data Integrity: Never mix dimensional data with cosmetic notes in the same field; use dedicated sections.

Common Injection Molding Issues Identified During FAI

A professional FAI report is more than a list of dimensions; it is a critical diagnostic tool. During initial sampling, engineering and quality teams identify physical deviations that affect the part's long-term performance and assembly. Below are the most common injection molding defects identified during First Article Inspection.

Shrinkage-Driven Dimensional Shift

What it is The physical contraction of the polymer as it cools from melt to solid state.

How it shows in FAI Actual dimensions are consistently smaller than the drawing nominal across the entire part.

Why it matters Indicates incorrect shrinkage calculation in mold design or unstable process parameters.

RECORD IN: Dimensional Inspection Results

Warpage Affecting Flatness or Assembly Fit

What it is Distortion caused by non-uniform internal stresses or cooling rates.

How it shows in FAI Deviations in flatness, parallelism, or circularity beyond specified GD&T tolerances.

Why it matters Leads to gaps in assembly or failure to seat properly in mating components. See warpage in injection molded parts for mitigation.

RECORD IN: Dimensional / Functional Test

Flash at Parting Line or Shut-Off

What it is Excess plastic leaking between mold plates or around inserts.

How it shows in FAI Visible thin "webs" of material extending from the part edges.

Why it matters Indicates poor mold fit, excessive injection pressure, or clamping force issues.

RECORD IN: Visual Appearance Inspection

Sink Near Ribs, Bosses, or Thick Sections

What it is Surface depressions occurring over thick internal features as they cool.

How it shows in FAI Local indentations visible under light inspection on the cosmetic surface.

Why it matters Primarily a cosmetic failure, but can indicate poor structural packing. Learn more about sink marks near ribs and bosses.

RECORD IN: Visual Appearance Inspection

Weld Line Visibility in Cosmetic Areas

What it is The line formed where two flow fronts of molten plastic meet.

How it shows in FAI A hairline mark on the surface, often located far from the gate.

Why it matters Affects cosmetic approval and can represent a structural weak point.

RECORD IN: Visual / Functional Record

Snap-Fit Interference or Force Variation

What it is Incorrect mechanical interaction between locking features.

How it shows in FAI Snap-fits that are too stiff to engage or too loose to hold.

Why it matters Directly impacts the end-user assembly and product durability.

RECORD IN: Functional or Assembly Check

Gate Vestige or Surface Read-Through

What it is Remaining material at the entry point after the runner is removed.

How it shows in FAI A protrusion or dimple that exceeds the specified flushness tolerance.

Why it matters Can cause interference with mating parts or fail cosmetic standards.

RECORD IN: Visual / Assembly Record

Best Practices for Customer-Shareable FAI Reports

Not all FAI reports are created equal. A "customer-shareable" report must transcend internal data logging to become a professional compliance document. For injection molded parts, the report format must align with your customer's internal engineering review logic and SQE (Supplier Quality Engineering) standards.

Keep Drawing Revision and Traceability Visible

Every page of the report should clearly state the Part Number and Drawing Revision. This ensures that the SQE is reviewing data against the correct Engineering Change Notice (ECN).

Use Balloon Numbers for Every Characteristic

Never list dimensions without a reference ID. Every controlled characteristic must have a corresponding balloon number on the drawing to ensure 1:1 traceability during audits.

Separate Dimensional, Visual, and Functional Results

Organize data into logical silos. Mixing cosmetic defects with dimensional tolerances creates confusion and delays the approval process. Professional quality documentation for plastic parts follows this segregated structure.

State Inspection Method and Pass/Fail Clearly

Transparency is key. Always document whether a dimension was verified via CMM, OMM, or Pin Gauge. A clear binary "Pass/Fail" status reduces the customer's cognitive load during review.

Attach Photos and Records Where Needed

For out-of-spec dimensions or specific surface textures, high-resolution photos and raw CMM data attachments provide the objective evidence required for conditional approval.

Match Format to Customer Submission Context

Whether it’s a standard Level 3 PPAP or a quick T1 sampling review, the report depth and format must be tailored to the specific milestone requirements of the project.

Need the report format aligned to your drawing revision or customer flow?

Standard templates often lack the specificity required for complex assembly fit-checks or critical-to-quality (CTQ) tracking. We can assist in aligning the FAI format to your latest drawing or submission context.

Align the Report Format Review the FAI Scope Upload Drawing for Alignment

FAI Report Field Checklist for Plastic Parts

To ensure your injection molding FAI report meets international SQE standards and customer audit requirements, use this structured checklist. This matrix defines the mandatory technical fields, recommended traceability items, and optional data points for comprehensive quality verification.

Field Group	Required Field (Mandatory)	Recommended	Optional
Required Identification Fields
Project Context	Part Name, Part Number, Rev Level	Mold/Tool Number, Cavity ID	Internal Project Code
Production Data	Material Grade & Manufacturer	Sample Date, Batch Number	Machine ID, Operator Name
Required Dimensional Fields
Measurement Data	Balloon #, Nominal, Tolerance, Actual	Inspection Method (CMM/Manual)	Raw CMM Data File Attachment
Analysis	Pass/Fail Status per Characteristic	CTQ (Critical to Quality) Flags	Trend Analysis (if sampling multiple)
Required Visual Inspection Fields
Surface Defects	Flash, Sink Marks, Short Shot Check	Weld Line Position Verification	Micro-scratch Analysis
Aesthetics	Color Match, Texture Grade (MT/VDI)	Gloss Level Measurement	Gate Vestige Flushness Photos
Required Assembly or Fit-Check Fields
Interaction	Snap-fit Engagement, Functional Fit	Mating Component Alignment	Interference Force Data
Fastening	Screw Boss Integrity, Insert Seating	Torque Test Results	Thread Depth Verification
Required Approval and Signature Fields
Disposition	Final Status (Approved/Rejected)	Deviation List / Conditional Terms	Corrective Action Request (CAR)
Authorization	Inspector Name, Date, Signature	Customer QA Approval Block	SQE Digital Stamp

Mandatory Submission Recommended for Audit Optional / Project Specific

Frequently Asked Questions: Injection Part FAI

What is included in an injection part FAI report?

A professional injection part FAI report typically includes part identification (ID/Revision), a ballooned drawing, a detailed dimensional inspection report format, visual appearance records (flash, sink, color), assembly or fit-check results, and a final approval disposition signed by quality engineering.

Is an FAI report the same as a dimensional inspection report?

No. While a dimensional inspection report is a major component of FAI, the FAI report is more comprehensive. It includes non-dimensional factors such as material certification (COA), visual surface standards, and assembly performance, proving the part is fit for production in all aspects, not just size.

Is FAI the same as PPAP for injection molded parts?

No. FAI focuses on the physical conformance of the part to the drawing (Tool Capability), while PPAP (Production Part Approval Process) focuses on the stability and repeatability of the manufacturing process. For a deeper breakdown, see our guide on FAI vs PPAP for plastic parts.

When do plastic parts need first article inspection?

FAI is required during initial mold sampling (T1/T2), after any tool modification or engineering change (ECN), when changing resin grades, or if the mold has been transferred to a new manufacturing facility to re-baseline production quality.

Can an FAI report include visual and assembly checks?

Yes. For injection molded parts, visual and assembly checks are mandatory sections. They record data on surface defects like gate vestige or weld lines and confirm that the part functions correctly within its mating assembly, such as snap-fit engagement or screw boss integrity.

What format should a customer-shareable FAI report use?

It should use a standardized, professional format (Excel or PDF) that features a clear traceability link (Balloon Numbers) between the technical drawing and the inspection results. The layout must be intuitive for an external SQE or Quality Manager to audit quickly.

Do all plastic parts need the same FAI format?

The complexity of the FAI format often depends on the customer's industry (e.g., Medical/Automotive vs. Consumer Electronics). While the core fields remain the same, some projects require additional Gage R&R data or specific Material Safety Data Sheets (MSDS) to be attached.

What is the difference between an FAI template and a sample report?

An FAI template is an empty, reusable framework with pre-defined fields for data entry. A sample FAI report is a completed document filled with actual measurement data from a specific part, used as a reference to show the expected level of detail and documentation quality.

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