Airworthiness Directive · Amendment 39-14593 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes in Operation
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes in Operation
This AD applies to all EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes in operation, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes in operation. This AD requires replacing the protective tubes and conduits of the wiring harnesses of the refueling vent and pilot valves with non-conductive hoses; modifying the harness wiring and supports; and rerouting the harnesses to prevent interference with adjacent strobe light connectors; as applicable. 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.
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, perform the actions specified in paragraph (f)(1) or (f)(2) of this AD, as applicable, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 120-28-0014, Revision 01, dated November 4, 2004.
(1) For Group I airplanes as identified in paragraph 1.1.1(a) or for Group II airplanes as identified in paragraph 1.1.1(b) of the service bulletin, as applicable: Modify the supports and wiring of the refueling vent and pilot valves wiring harnesses; reroute the harnesses to prevent interference with adjacent strobe light connectors; and replace the protective tubes and conduits of the harnesses with non-conductive hoses; in accordance with Part I of the Accomplishment Instructions of the service bulletin.
(2) For all remaining airplanes as identified in paragraph 1.1.2 of the service bulletin: Replace the protective tubes of the wiring harnesses of the refueling vent and pilot valves with non-conductive hoses; in accordance with Part II of the Accomplishment Instructions of the service bulletin.
Actions accomplished before the effective date of this AD in accordance with EMBRAER Service Bulletin 120-28-0014, dated April 19, 2004, are considered acceptable for compliance with the corresponding requirements of this AD.
