Airworthiness Directive · Amendment 39-14745 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
This AD applies to EMBRAER Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes, certificated in any category; as identified in EMBRAER Service Bulletin 170-23-0005, dated December 29, 2004.
The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model ERJ 170 airplanes. This AD requires replacing the very high frequency (VHF) antenna located in position 1 of the fuselage with a new, improved VHF antenna. This AD results from a report of the loss of all voice communications due to a lightning strike damaging all the VHF antennas. We are issuing this AD to prevent the loss of voice communication, which, when combined with the complexity of the national airspace system, could result in reduced flightcrew situational awareness, increased flightcrew workload, and increased risk of human error, and consequent reduced ability to maintain safe flight and landing 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 700 flight hours after the effective date of this AD, replace the VHF antenna located in position 1 of the fuselage with a new, improved VHF antenna in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-23-0005, dated December 29, 2004.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
