FAAFinal Rule
Airworthiness Directives: Siam Hiller Holdings, Inc.
Transportation
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Summary
The Federal Aviation Administration (FAA) has issued a safety directive for helicopters made by Siam Hiller Holdings, Inc., requiring specific maintenance or repairs to ensure these aircraft are safe to fly. This regulation helps protect pilots and passengers by preventing potential equipment failures.
Key Points
- 1The FAA has identified a safety concern with certain Siam Hiller helicopter models that requires corrective action
- 2Helicopter owners and operators must comply with the directive or stop flying their aircraft until repairs are completed
- 3The directive specifies maintenance checks, inspections, or modifications needed to keep helicopters in safe working condition
- 4This applies to all operators of affected Siam Hiller aircraft, including private owners, tour companies, and emergency services
- 5Failure to follow the directive can result in fines and grounding of the aircraft
Impact Assessment
If you operate or maintain Siam Hiller Holdings helicopters, you must perform required maintenance or repairs to meet new safety standards, which will incur costs and scheduling impacts.
Impact Level
Significant
Geographic Scope
National
Compliance Cost
Moderate
Who is Affected
ManufacturersTransportation CompaniesWorkers/Laborers
Key Dates
Published
August 20, 2025
Regulatory Connections
Authorized By
Amends CFR Sections
14 CFR Part 39
Other Documents in This Rulemaking (FAA-2024-2555)
This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.
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