EASA AD 2026-0136
Flights Controls – Trimmable Horizontal Stabilizer Actuator Ballscrew Lower Splines – Inspection / Replacement
EASA Airworthiness Directive 2026-0136 is an airworthiness directive addressing corrosion issues in the trimmable horizontal stabilizer actuator (THSA) ballscrew lower splines on Airbus A318, A319, A320, and A321 aircraft. It applies to specific THSA part numbers that may suffer corrosion leading to potential loss of control of the airplane. The directive mandates inspections and possible replacement of affected parts to ensure continued airworthiness.