EASA AD ISR-I-78-2025-03-01
Changes to the 1124 & 1124A Westwind models AFMs
Summary
Airworthiness Directive ISR I-78-2025-03-01 is issued by the Civil Aviation Authority of Israel and applies to all 1124 and 1124A Westwind aircraft models. This directive mandates changes to the Aircraft Flight Manuals (AFMs) of these models to address the thrust reverser system's status and function during flight. The directive ensures that thrust reverser deployment is prohibited before landing to enhance flight safety.
What Changed
This Airworthiness Directive introduces revised limitations to the AFMs of the 1124 and 1124A Westwind aircraft models. Operators must incorporate Revision TR#8 for the 1124 models and Revision TR#9 for the 1124A models into their AFMs. These revisions specifically address the proper status and function of the thrust reverser system while airborne.
Why It Matters
This directive is critical for aviation professionals as it directly impacts the safe operation of the 1124 and 1124A Westwind aircraft by preventing premature thrust reverser deployment. Operators, maintenance, repair, and overhaul (MRO) teams must ensure compliance to avoid unsafe flight conditions and regulatory violations. Compliance ensures continued airworthiness and operational safety of affected aircraft.
What To Do
Operators of 1124 and 1124A Westwind aircraft must update their AFMs by incorporating Revision TR#8 for 1124 models and Revision TR#9 for 1124A models before the next flight after the effective date. Compliance with this directive is mandatory and must be completed by April 4, 2025. For further information, stakeholders should contact the Civil Aviation Authority of Israel's Airworthiness Division.