AD 2021-19-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes |
Unsafe Condition
Reports indicating that Thales global positioning system (GPS) satellite based augmentation system (SBAS) receivers provided, under certain conditions, erroneous outputs on aircraft positions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replacing affected GPS SBAS receivers with new, improved receivers, as specified in EASA AD 2021-0013.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
All ATR-GIE Avions de Transport R[eacute]gional Model ATR42-500 and ATR72-212A airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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