Resumo
The FAA is adopting a new airworthiness directive (AD) for certain Siam Hiller Holdings, Inc. (Siam Hiller), Model UH-12E (Army OH-23G and H-23F) and UH-12E-L helicopters. This AD was prompted by reports of cracks found in a main rotor (M/R) transmission drive shaft (drive shaft). This AD requires inspecting certain M/R drive shafts for a crack, prohibits installing certain M/R drive shafts unless the inspection is done, and prohibits using certain paint strippers. The FAA is issuing this AD to address the unsafe condition on these products.
Detalhes da diretiva
Número da AD
FAA-2024-2555
Número do documento
2025-15839
Tipo
Rule
Data de publicação
August 20, 2025
Data de vigência
September 24, 2025
Fabricante afetado
Siam Hiller Holdings, Inc.
Criticidade
routine
Emergência
Não
Docket ID
Docket No. FAA-2024-2555
Tópicos
Documentos oficiais
Acompanhamento automatizado de conformidade de ADs
O AeroCopilot vincula ADs à sua aeronave e rastreia o status de conformidade. Incluído em todo plano a partir de US$ 7,99 por mês.
Unlock AD-to-aircraft matching, compliance tracking, recurrence schedule with a free AeroCopilot account.
Sign up free to unlock AD-to-aircraft matching, compliance tracking, recurrence scheduleFree forever · No credit card · Sourced directly from FAA & NOAA pipelines