EASA SIB 2008-30
FAA SAIB SW-08-16 - Robinson R44 II helicopters - Air Conditioning Wiring Chafing
Summary
FAA Special Airworthiness Information Bulletin SW-08-16 is an informational bulletin addressing an electrical short risk in the air conditioning wiring of Robinson R44 II helicopters up to serial number 12167. The bulletin alerts owners and operators to potential wiring chafing that can cause electrical shorts in the overhead duct assembly. EASA has issued a Safety Information Notice endorsing the FAA recommendations for this issue.
What Changed
This bulletin introduces awareness of an electrical short caused by chafing of the air conditioning wiring against an aluminum support strap in Robinson R44 II helicopters. It recommends compliance with Robinson Service Bulletin SB-65, which specifies installing additional wire protection in two locations to prevent the chafing. The bulletin does not impose mandatory requirements but provides safety guidance.
Why It Matters
This information is critical for operators and maintenance personnel to prevent electrical shorts that could lead to system failures or safety hazards in Robinson R44 II helicopters. Addressing the wiring chafing issue helps maintain aircraft airworthiness and reduces the risk of in-flight electrical malfunctions. Compliance teams benefit from understanding the recommended service bulletin to ensure proper maintenance and safety management.
What To Do
Owners and operators of Robinson R44 II helicopters equipped with air conditioning should review and comply with Robinson Service Bulletin SB-65 dated February 22, 2008. This involves installing additional wire protection in the specified locations to prevent wiring chafing. For further information, stakeholders should contact the FAA or Robinson Helicopter Company as provided in the bulletin.
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