Flight Controls — Horizontal Stabilizer Trim Actuator (HSTA) — Incorrect Installation of the Interface Pin in the Upper Gimbal
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Airbus Canada BD-500-1A10 and BD-500-1A11 aircraft must perform a detailed visual inspection of the HSTA interface pin within 3000 flight hours from February 10, 2025. If the pin is incorrectly installed, it must be corrected before the next flight following the procedures in ACLP Service Bulletin BD500-274007. Compliance with these actions is mandatory.
Summary
Canadian Airworthiness Directive CF-2025-07 addresses a safety issue in Airbus Canada Limited Partnership aircraft models BD-500-1A10 and BD-500-1A11. The directive concerns the incorrect installation of the interface pin in the upper gimbal of the Horizontal Stabilizer Trim Actuator (HSTA). It mandates inspection and correction to ensure proper mechanical connection of the horizontal stabilizer.
What changed
CF-2025-07 introduces a new requirement for operators of specified Airbus Canada aircraft to inspect the interface pin installation in the HSTA upper gimbal. If the pin is found incorrectly installed, the directive requires immediate modification before further flight. This is a newly issued airworthiness directive to address a production quality escape.
Why it matters
This directive is critical for maintaining flight safety by preventing a potential mechanical disconnect of the horizontal stabilizer, which could lead to loss of aircraft control. Operators, maintenance organizations, and compliance teams must ensure timely inspections and corrections to avoid unsafe conditions and regulatory non-compliance.
More for Airbus BD-500 (A220 Series)
All 123- EASA AD CF-2026-49Engine Controls – Throttle Quadrant Assembly – Throttle Lever Jamming - ReplacementOct 12, 2026
- EASA PAD 26-112Fuselage – Mid Avionics Bay – ModificationSep 23, 2026
- EASA AD CF-2026-45Wings – Discrepant Fasteners at Wing to Fuselage Joint - AmendmentSep 11, 2026
- EASA AD CF-2026-40Time Limits/Maintenance Checks – New and Revised Airworthiness Limitations TasksSep 2, 2026
- EASA AD CF-2026-36Fuselage – Skin Assembly – Discrepant Fasteners at Air Data System Probe Doubler - Replacement
Get the next one by email
New ADs and bulletins for Airbus BD-500 (A220 Series), summarized like this page, every Monday.