AD 2023-21-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | S | Airworthiness Directives; Embraer S.A. Airplanes |
Unsafe Condition
occurrences of an uncommanded change in the setting of the barometric pressure in both primary flight displays (PFDs), resulting in erroneous altitude information, which could lead to altitude mismanagement or spatial disorientation of the flight crew, with consequent deviation from the intended altitude and loss of control of the airplane, risk of air collision due to inadequate air traffic separation, or risk of controlled flight into terrain.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
install a new version of the airplane avionics system software, as specified in ANAC AD 2023-04-01
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Embraer S.A. Model EMB-505 airplanes, as identified in paragraph (a) of Agência Nacional de Aviação Civil (ANAC) AD 2023-04-01, effective April 4, 2023
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.