Fine Machine Works Inc.
Case Study · Aerospace

Replacement Structural Bracket for an Aerospace MRO Customer

How Fine Machine Works delivered a legacy machined bracket to AS9102 First Article requirements, with full material traceability.

Sector
Aerospace MRO
Material
e.g. 7075 aluminum
Process
e.g. 5-axis (4+1) milling
Quantity
e.g. FAI + 25 pcs

Sample structure only. The project, customer type, specifications and results are placeholders; Si supplies the real details and approves whether the customer can be named. Each case study stays at about 400–500 words.

The Challenge

An Out-of-Production Part With Strict Documentation Requirements

An MRO organization required a replacement structural bracket for an aircraft platform where the original supply was no longer available. The part carried tight positional tolerances between mounting features, and the customer’s quality clauses required First Article Inspection to AS9102 and full material traceability.

Add any timing pressure, e.g. aircraft-on-ground or a scheduled maintenance window.

Our Approach

Controlled From Contract Review to Delivery

Contract Review

Drawing revision, customer clauses, and material specification were reviewed and flowed down into production planning.

Machining Strategy

The bracket was machined on a 5-axis (4+1) machining center, completing critical features in a single setup to limit tolerance stack-up.

First Article

First-off parts were verified on the Hexagon 7.10.7 SF CMM and documented in an AS9102 First Article report.

Controlled Production

Production was released under revision control with heat/lot traceability and a Certificate of Conformance with each shipment.

The Result

Accepted First Article, On-Schedule Delivery

  • First Article accepted with no non-conformances
  • Delivered in X weeks from purchase order
  • Repeat orders or a follow-on part number, if applicable
  • Full objective evidence retained: material certifications, inspection data, and CoC

Optional customer quote, with approval.

Project Specifications

At a Glance

PartStructural bracket
MaterialAlloy and specification
Critical tolerancee.g. ±0.0005 in on bore positions
Process5-axis (4+1) milling
InspectionHexagon CMM; AS9102 First Article report
DocumentationMaterial certs, heat/lot traceability, Certificate of Conformance
Quality systemAS9100:D and ISO 9001:2015
Related Capabilities

Capabilities Used on This Project

5-Axis CNC Machining

Multi-face machining in fewer setups.

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CMM Inspection & AS9102 FAI

Verified geometry and documented first articles.

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Aerospace Machining

AS9100D-certified support for OEMs, Tier 1 and MRO.

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Sourcing a Legacy or Hard-to-Find Aerospace Part?

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