Resumen
The FAA is adopting a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and Model ATR72 airplanes. This AD was prompted by a design review that determined that the inspection interval of the pressure regulator and shut-off valve (PRSOV) functional test must be reduced to meet the design safety objectives, due to a risk of dormant failures. This AD requires repetitive functional tests of each PRSOV, and applicable corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
Detalles de la directiva
Número de AD
FAA-2025-2259
Número de documento
2025-22339
Tipo
Rule
Fecha de publicación
December 9, 2025
Fecha de entrada en vigor
January 13, 2026
Fabricante afectado
ATR-GIE Avions de Transport Régional
Criticidad
important
Emergencia
No
Docket ID
Docket No. FAA-2025-2259
Temas
Documentos oficiales
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