EASA SIB 2008-60
CASA Australia AWB 57-008 - Hawker Beechcraft 58 Aeroplanes - Major Wing Spar Corrosion
Summary
CASA Australia AWB 57-008 is an Airworthiness Bulletin addressing major corrosion found in the wing spars of Hawker Beechcraft 58 series aircraft. The bulletin highlights that this corrosion may not be visible during external inspections and affects all models and serial numbers of the B58 series. The document is supported by EASA Safety Information Bulletin 2008-60 to raise awareness among European operators as well.
What Changed
This bulletin introduces a safety advisory regarding the discovery of severe corrosion in the wing spars of Hawker Beechcraft 58 series aircraft. It recommends thorough inspections beyond external checks and immediate treatment of any corrosion found. The bulletin does not mandate actions but strongly advises operators to follow the outlined inspection and maintenance procedures.
Why It Matters
This information is critical for aviation professionals because undetected corrosion in the wing spars can compromise structural integrity and safety. Operators, maintainers, and compliance teams must be vigilant to prevent potential in-service failures and ensure continued airworthiness. Early detection and treatment of corrosion can avoid costly repairs and aircraft grounding.
What To Do
Operators and maintainers of Hawker Beechcraft 58 series aircraft should promptly perform external inspections of the wing spar caps and gain access to inspect internal spar surfaces for corrosion. Any corrosion found must be treated immediately following the manufacturer's instructions. Inspections should be repeated at each periodic maintenance interval, and all corrosion findings must be reported to CASA via the SDR system.
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