AD 89-24-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-200 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-300 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-320 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
| aircraft | ATR - GIE Avions de Transport R gional | ATR42-500 | Airworthiness Directives; AEROSPATIALE Model ATR42 Series Airplanes |
Unsafe Condition
Failure of the anti-icing advisory system could result in loss of control when operating in icing conditions, including freezing rain.
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Required Actions
Install an anti-icing advisory system per specified Aerospatiale Service Bulletins and incorporate Revision 6 of the Airplane Flight Manual into the FAA-approved AFM.
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Compliance Time
within 60 days after the effective date of this AD
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Affected Aircraft
All Model ATR42 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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