Stabilizers – Horizontal Stabilizer Spar – Inspection
Superseded. Comply with 2021-0178R2, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2019-0148-E
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of EC 175 B helicopters without modification 99A05341 must inspect the horizontal stabilizer main spar before the next flight after June 25, 2019, and then every 10 flight hours. If any cracks are found, the affected horizontal stabilizer must be replaced before further flight. Helicopters with the modification are not subject to these inspection requirements.
Summary
EASA Airworthiness Directive 2019-0148R1 is an updated safety directive affecting Airbus Helicopters EC 175 B models, excluding those with modification 99A05341. It mandates repetitive inspections of the horizontal stabilizer main spar to detect cracks that could lead to loss of control. This directive ensures continued airworthiness by requiring timely inspections and corrective actions.
What changed
This revision of EASA AD 2019-0148 updates the applicability by excluding helicopters that have incorporated modification 99A05341, which permanently addresses the unsafe condition. It replaces the original emergency AD 2019-0148-E and reduces the affected fleet accordingly. The inspection requirements and corrective actions remain consistent with the original directive.
Why it matters
This directive is critical for operators and maintenance teams to prevent potential structural failure of the horizontal stabilizer, which could cause loss of helicopter control. Compliance ensures safety and regulatory adherence, avoiding operational disruptions or grounding. It also clarifies which aircraft are exempt due to the permanent modification, optimizing maintenance resources.
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