Airworthiness Directive · Amendment 39-19903 · Electrical power
Yaborã Indústria Aeronáutica S.A. (Type Certificate Previously Held by Embraer S.A.)
Superseded. A later AD replaced this one: AD 2021-12-14. Comply with the one in force.
This AD applies to all Yaborã Indústria Aeronáutica S. A. (Type Certificate previously held by Embraer S.A.) Model ERJ 190-300 and ERJ 190-400 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica S.A. Model ERJ 190- 300 and ERJ 190-400 airplanes. This AD was prompted by a failure propagation test, which revealed that when complete loss of the electrical digital current (DC) essential bus 2 was induced, the smoke detection system of the forward and aft electrical bays erroneously indicated the presence of smoke via the respective engine indication and crew alerting system (EICAS) messages. This AD requires revising the existing airplane flight manual (AFM) procedures associated with messages of smoke in the electronic bays presented on the EICAS, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) Brazilian AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Agência Nacional de Aviação Civil (ANAC) Brazilian Emergency Airworthiness Directive (EAD) 2019-12-01, effective December 9, 2019 (“Brazilian EAD 2019-12-01”).
(1) Where Brazilian EAD 2019-12-01 refers to its effective date, this AD requires using the effective date of this AD.
(2) The “Alternative method of compliance (AMOC)” section of Brazilian EAD 2019-12-01 does not apply to this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
Appliances and equipment
