April 19, 2021

sasadmin

Sofema Aviation Services (SAS) www.sassofia.com considers best practice related to stores tooling inspection procedures – Control of Non-Calibrated Tooling

Considerations Related to Tooling which is not subject to calibration but requires detailed Inspection.

Introduction

The Partial failure of a Boot Strap Kit during the replacement of a CF6-50C2 Wing Engine could have resulted in an expensive accident – fortunately neither the Engine nor any personnel were damaged or injured.

However, it highlighted that in this particular organisation there was no inspection performed on non-calibration tooling and it was all treated as “on condition” – means use it until it breaks then fix or replace.

The potential damage to a very expensive engine served to highlight the exposure related to the effective management of tooling & equipment. After Investigation it was decided that all such tooling & equipment would be returned to stores as “unserviceable” pending inspection.

Such Inspection would be performed by trained and authorised personnel (including stores staff).

Initial Inspection/ Acceptance of Tools and Equipment

Approved Stores Inspection Staff are responsible for receiving the incoming tools and equipment.

All incoming tools or equipment shall be inspected for:

  • Shipping damage
  • State of preservation
  • Conformity to type / specification of the purchase order
  • Accompanying documents demonstrating the quality, specification, and calibration status
  • User Instructions Manual and / or Maintenance Manual

All the tools and equipment accepted by the receiving inspection process shall normally be marked in a permanent way (engraving, identification plates, etc).

The marking codes shall be unique and shall be registered within the Stores Tooling Control System.

Examples of Tooling & Equipment potentially subject to Return to Stores Inspection include:

  • Engine Change Boot Strap Kit
  • Lifting Equipment
  • Ropes, Harnesses & Chains
  • Aircraft Maintenance Lighting Equipment
  • Fuel Tank Specialised Lighting
  • Fuel Tank Personnel Breathing Equipment

The above list is representative only and is provided for indication only.

What does a Return to Stores Tooling Inspection Consider?

  • For each tool / appliance or group / type or item a checklist should be created
  • The purpose of the return to stores inspection checklist is to ensure that the inspection process is performed to a common standard.
  • Carefully Inspect the Tooling / Equipment against the following criteria:

o Any signs of damage to any part of the Tooling / Equipment

o End Fittings fully functioning.

o No Fraying of any Lifting Harness / Rope or Wire

o Electrical Wiring for Serviceability & Integrity

o Security of Electrical Connectors and Connections

o Signs of Stress, Burning or Discolouration

o Apply Preservation (If required)

Next Steps

Sofema Aviation Services provides the following 1-day training course covering the essential areas of the Part 145 Tooling Store

Please see the following link or email team@sassofia.com

Part 145 Stores Tooling Control, Inspection Procedures & Best Practice – 1 Day

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aviation, EASA Part 145, EASA Part 145 Stores, SAS blogs, Part 145 Tooling Store, Aviation Tooling Store, Aircraft Tooling, Tool Store Environment, Non-Calibrated Tooling, Tooling Inspection