Airworthiness Directive · Amendment 39-14454 · 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 120-53-0080, dated November 30, 2004.
The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. This AD requires installing a rivet and washer in the hole of the upper frame of the auxiliary power unit (APU) firewall. This AD results from a report indicating that, during production, a pinhole was left open at the upper frame of the APU firewall. We are issuing this AD to ensure that the APU compartment is isolated from the rest of the airplane in the event of an APU fire.
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 4,000 flight hours or 24 months, whichever occurs first after the effective date of this AD: Install a rivet and washer in the hole of the upper frame of the APU firewall, in accordance with EMBRAER Service Bulletin 120-53-0080, dated November 30, 2004.
