EASA AD 2019-0054
Nacelles / Pylons — Engine Mounting Structure — Modification
Summary
EASA Airworthiness Directive 2019-0054 is an airworthiness directive issued by EASA affecting SAAB 2000 aeroplanes, excluding serial numbers 006, 043, 056, and 061. It addresses a potential unsafe condition related to the engine mounting structure on these aircraft. The directive mandates a modification to the nacelle upper longeron and associated engine mounting structure to prevent structural failures.
What Changed
This new airworthiness directive introduces a required modification to the engine mounting structure and its attachments on SAAB 2000 aeroplanes. The modification involves installing a repair as detailed in SAAB Service Bulletin 2000-54-036 to prevent loose fasteners and potential cracks in the engine mount-to-aircraft structural connection.
Why It Matters
This directive is critical for aviation professionals because it prevents the risk of engine mount failure, which could lead to significant airframe vibrations and compromise the integrity of the pylon and nacelle structure. Operators and maintenance organizations must ensure compliance to maintain aircraft safety and airworthiness.
What To Do
Operators of affected SAAB 2000 aeroplanes must modify the engine mounting structure and attachments following the instructions in SAAB Service Bulletin 2000-54-036. This modification must be completed within 3,000 flight hours or 24 months from the effective date of 1 April 2019, whichever occurs first.
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