Airworthiness Directive · Amendment 39-14614 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes
This AD applies to EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes, certificated in any category, as identified in EMBRAER Service Bulletin 120-30-0034, Revision 01, dated September 22, 2004.
The FAA is adopting a new airworthiness directive (AD) for certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. This AD requires replacing the de-icing system ejector flow control valves with new, improved control valves having hermetically sealed switches; and rewiring applicable connectors. This AD results from a fuel system review conducted by the manufacturer. We are issuing this AD to prevent a potential source of ignition near a fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 5,000 flight hours after the effective date of this AD, replace the de-icing system ejector flow control valves, part number (P/N) 3D2376-06, with new, improved flow control valves having hermetically sealed switches, P/N 3D2376-07; and rewire the applicable connectors; in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 120-30-0034, Revision 01, dated September 22, 2004.
Actions accomplished before the effective date of this AD in accordance with EMBRAER Service Bulletin 120-30-0034, dated October 30, 2003, are considered acceptable for compliance with the corresponding actions of this AD.
