AD 2011-23-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Sicma Aero Seat Passenger Seat Assemblies, Installed on, But Not Limited to, ATR-GIE Avions de Transport Régional Airplanes |
Unsafe Condition
Several occurrences of cracked central and lateral spreaders on passenger seats models 9401 and 9402. This condition, if not corrected, can lead to further cracking of the seat spreaders, causing injury to passengers or crew members during heavy turbulence in flight or in the event of an emergency landing.
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Required Actions
Conduct repetitive detailed inspections of the affected seats. Depending on findings, repair or replace damaged spreaders with an improved design (Amendment B standard). Replacement of all spreaders terminates the repetitive inspection requirements.
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Compliance Time
Before further flight
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Affected Aircraft
Sicma Aero Seat Model 9401, 9402, 9404, 9405, 9406, 9407, 9408, and 9409 series passenger seat assemblies, installed on, but not limited to, ATR-GIE Avions de Transport Régional Model ATR42-200, -300, -320, and -500 airplanes and Model ATR72-101, -201, -102, -202, -211, -212, and -212A airplanes. Excludes front row and aft-facing seats, and those modified to 'Amendment B' standard.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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