AD 2018-21-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | ATR-GIE | Avions de Transport Régional | Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes |
Unsafe Condition
Cracks on the wing of an in-service ATR 42 aeroplane were detected in 2004, on the upper feet of ribs and on the upper skin of the wing outer boxes. This condition, if not detected and corrected, could adversely affect the structural integrity of the aeroplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the outer wing box upper skin and upper rib feet, on the left-hand and right-hand wings, for discrepancies. Depending on findings, accomplish a repair.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
All ATR-GIE Avions de Transport Régional Model ATR42 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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