Airworthiness directives › 2019-03-30
AD 2019-03-30 Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (Embraer) Airplanes
Models named: EMB-135ER, -135KE, -135KL, -135LR, EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Empresa Brasileira de Aeronautica S.A. (Embraer) Model EMB-135ER, -135KE, -135KL, and -135LR airplanes; and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes identified in Embraer Service Bulletin 145-78-0035, Revision 03, dated November 26, 2004; certificated in any category; except airplanes identified in Embraer Service Bulletin 145-78-0035, Revision 02, dated January 31, 2003.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Before the accumulation of 2,000 total flight hours, or within 400 flight hours after the effective date of this AD, whichever occurs later, install new stow/transit switches having part number (P/N) 83-990-168, on the #1 and #2 engine thrust reversers, in accordance with the Accomplishment Instructions of Embraer Service Bulletin 145-78-0035, Revision 03, dated November 26, 2004.
Unsafe condition
This AD was prompted by reports of internal corrosion of the stow/transit switches installed in the engine thrust reversers. We are issuing this AD to address corrosion of the stow/transit switches, which could result in uncommanded loss of engine power in-flight or erroneous signals in the Engine Indicating and Crew Alerting System (EICAS), which could induce aborted takeoffs.
Affected ADs
None.
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1