Airworthiness directives › 2021-23-07
AD 2021-23-07 Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes
Models named: SAAB 340B. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Model SAAB 340B airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2021-0058, dated March 1, 2021 (EASA AD 2021-0058).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2021-0058.
Unsafe condition
This AD was prompted by a report that the circuit breaker for the emergency cabin lighting tripped without fault in the system. The FAA is issuing this AD to address the low rating of the 2LN circuit breaker during maximum charging conditions. This condition, if not corrected, could lead to an insufficiently charged emergency battery, with consequent loss of cabin emergency lighting, possibly resulting in injury to occupants during an evacuation.
Affected ADs
None.
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